enet-improved-csharp/Source/Native/enet.h

/*
 *  ENet reliable UDP networking library
 * 	This is a fork from upstream and is available at http://github.com/SoftwareGuy/ENet-CSharp
 *
 *  Copyright (c) 2019-2020 Matt Coburn (SoftwareGuy/Coburn64), Chris Burns (c6burns)
 *  Copyright (c) 2018 Lee Salzman, Vladyslav Hrytsenko, Dominik Madarász, Stanislav Denisov
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 *  SOFTWARE.
 *
 *  Oh hey NX, whatcha doin' looking at this forks' source code? :)
 */

#ifndef ENET_H
#define ENET_H

#include <stdlib.h>
#include <stdbool.h>
#include <stdint.h>
#include <time.h>

 // include the ENET Logger code.
#include "custom/enet_logging.h"

#define ENET_VERSION_MAJOR 2
#define ENET_VERSION_MINOR 4
#define ENET_VERSION_PATCH 0
#define ENET_VERSION_CREATE(major, minor, patch) (((major) << 16) | ((minor) << 8) | (patch))
#define ENET_VERSION_GET_MAJOR(version) (((version) >> 16) & 0xFF)
#define ENET_VERSION_GET_MINOR(version) (((version) >> 8) & 0xFF)
#define ENET_VERSION_GET_PATCH(version) ((version) & 0xFF)
#define ENET_VERSION ENET_VERSION_CREATE(ENET_VERSION_MAJOR, ENET_VERSION_MINOR, ENET_VERSION_PATCH)

#define ENET_TIME_OVERFLOW 86400000
#define ENET_TIME_LESS(a, b) ((a) - (b) >= ENET_TIME_OVERFLOW)
#define ENET_TIME_GREATER(a, b) ((b) - (a) >= ENET_TIME_OVERFLOW)
#define ENET_TIME_LESS_EQUAL(a, b) (!ENET_TIME_GREATER(a, b))
#define ENET_TIME_GREATER_EQUAL(a, b) (!ENET_TIME_LESS(a, b))
#define ENET_TIME_DIFFERENCE(a, b) ((a) - (b) >= ENET_TIME_OVERFLOW ? (b) - (a) : (a) - (b))

#define ENET_MAX(x, y) ((x) > (y) ? (x) : (y))
#define ENET_MIN(x, y) ((x) < (y) ? (x) : (y))

/*
=======================================================================
	System differences
=======================================================================
*/

#ifdef _WIN32
#ifndef ENET_NO_PRAGMA_LINK
#pragma comment(lib, "ws2_32.lib")
#pragma comment(lib, "winmm.lib")
#endif

#if _MSC_VER >= 1910
/* It looks like there were changes as of Visual Studio 2017 and there are no 32/64 bit
versions of _InterlockedExchange[operation], only InterlockedExchange[operation]
(without leading underscore), so we have to distinguish between compiler versions */
#define NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
#endif

#include <winsock2.h>
#include <ws2tcpip.h>
#include <mmsystem.h>
#include <intrin.h>

#if defined(_WIN32) && defined(_MSC_VER)
#if _MSC_VER < 1900
typedef struct timespec {
	long tv_sec;
	long tv_nsec;
};
#endif
#define CLOCK_MONOTONIC 0
#endif

typedef SOCKET ENetSocket;

#define ENET_SOCKET_NULL INVALID_SOCKET

typedef struct {
	size_t dataLength;
	void* data;
} ENetBuffer;

#define ENET_CALLBACK __cdecl

#ifdef ENET_DLL
#ifdef ENET_IMPLEMENTATION
#define ENET_API __declspec(dllexport)
#else
#define ENET_API __declspec(dllimport)
#endif
#else
#define ENET_API extern
#endif
#else
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <poll.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <netdb.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

#ifdef __APPLE__
#include <mach/clock.h>
#include <mach/mach.h>
#include <Availability.h>
#endif

#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif

#ifdef MSG_MAXIOVLEN
#define ENET_BUFFER_MAXIMUM MSG_MAXIOVLEN
#endif

typedef int ENetSocket;

#define ENET_SOCKET_NULL -1

typedef struct {
	void* data;
	size_t dataLength;
} ENetBuffer;

#define ENET_CALLBACK
#define ENET_API extern
#endif

#ifndef ENET_BUFFER_MAXIMUM
#define ENET_BUFFER_MAXIMUM (1 + 2 * ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS)
#endif

#define ENET_HOST_ANY in6addr_any
#define ENET_PORT_ANY 0
#define ENET_HOST_SIZE 1025

#define ENET_HOST_TO_NET_16(value) (htons(value))
#define ENET_HOST_TO_NET_32(value) (htonl(value))
#define ENET_NET_TO_HOST_16(value) (ntohs(value))
#define ENET_NET_TO_HOST_32(value) (ntohl(value))

#ifdef __cplusplus
extern "C" {
#endif

	/*
	=======================================================================
		Internals
	=======================================================================
	*/

	typedef uint32_t ENetVersion;

	typedef fd_set ENetSocketSet;

	typedef struct _ENetCallbacks {
		void* (ENET_CALLBACK* malloc)(size_t size);
		void (ENET_CALLBACK* free)(void* memory);
		void (ENET_CALLBACK* noMemory)(void);
	} ENetCallbacks;

	extern void* enet_malloc(size_t);
	extern void enet_free(void*);

	typedef struct _ENetListNode {
		struct _ENetListNode* next;
		struct _ENetListNode* previous;
	} ENetListNode;

	typedef ENetListNode* ENetListIterator;

	typedef struct _ENetList {
		ENetListNode sentinel;
	} ENetList;

	extern ENetListIterator enet_list_insert(ENetListIterator, void*);
	extern ENetListIterator enet_list_move(ENetListIterator, void*, void*);
	extern void* enet_list_remove(ENetListIterator);
	extern void enet_list_clear(ENetList*);
	extern size_t enet_list_size(ENetList*);

#define enet_list_begin(list) ((list)->sentinel.next)
#define enet_list_end(list) (&(list)->sentinel)
#define enet_list_empty(list) (enet_list_begin(list) == enet_list_end(list))
#define enet_list_next(iterator) ((iterator)->next)
#define enet_list_previous(iterator) ((iterator)->previous)
#define enet_list_front(list) ((void*)(list)->sentinel.next)
#define enet_list_back(list) ((void*)(list)->sentinel.previous)

#define enet_in6_equal(a, b) (memcmp(&a, &b, sizeof(struct in6_addr)) == 0)

	/*
	=======================================================================
		Protocol
	=======================================================================
	*/

	enum {
		ENET_PROTOCOL_MINIMUM_MTU = 576,
		ENET_PROTOCOL_MAXIMUM_MTU = 4096,
		ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS = 32,
		ENET_PROTOCOL_MINIMUM_WINDOW_SIZE = 4096,
		ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE = 65536,
		ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT = 1,
		ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT = 255,
		ENET_PROTOCOL_MAXIMUM_PEER_ID = 0xFFF,
		ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT = 1024 * 1024
	};

	typedef enum _ENetProtocolCommand {
		ENET_PROTOCOL_COMMAND_NONE = 0,
		ENET_PROTOCOL_COMMAND_ACKNOWLEDGE = 1,
		ENET_PROTOCOL_COMMAND_CONNECT = 2,
		ENET_PROTOCOL_COMMAND_VERIFY_CONNECT = 3,
		ENET_PROTOCOL_COMMAND_DISCONNECT = 4,
		ENET_PROTOCOL_COMMAND_PING = 5,
		ENET_PROTOCOL_COMMAND_SEND_RELIABLE = 6,
		ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE = 7,
		ENET_PROTOCOL_COMMAND_SEND_FRAGMENT = 8,
		ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED = 9,
		ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT = 10,
		ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE = 11,
		ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT = 12,
		ENET_PROTOCOL_COMMAND_COUNT = 13,
		ENET_PROTOCOL_COMMAND_MASK = 0x0F
	} ENetProtocolCommand;

	typedef enum _ENetProtocolFlag {
		ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE = (1 << 7),
		ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED = (1 << 6),
		ENET_PROTOCOL_HEADER_FLAG_SENT_TIME = (1 << 14),
		ENET_PROTOCOL_HEADER_FLAG_MASK = ENET_PROTOCOL_HEADER_FLAG_SENT_TIME,
		ENET_PROTOCOL_HEADER_SESSION_MASK = (3 << 12),
		ENET_PROTOCOL_HEADER_SESSION_SHIFT = 12
	} ENetProtocolFlag;

#ifdef _MSC_VER
#pragma pack(push, 1)
#define ENET_PACKED
#elif defined(__GNUC__) || defined(__clang__)
#define ENET_PACKED __attribute__ ((packed))
#else
#define ENET_PACKED
#endif

	typedef struct _ENetProtocolHeader {
		uint16_t peerID;
		uint16_t sentTime;
	} ENET_PACKED ENetProtocolHeader;

	typedef struct _ENetProtocolCommandHeader {
		uint8_t command;
		uint8_t channelID;
		uint16_t reliableSequenceNumber;
	} ENET_PACKED ENetProtocolCommandHeader;

	typedef struct _ENetProtocolAcknowledge {
		ENetProtocolCommandHeader header;
		uint16_t receivedReliableSequenceNumber;
		uint16_t receivedSentTime;
	} ENET_PACKED ENetProtocolAcknowledge;

	typedef struct _ENetProtocolConnect {
		ENetProtocolCommandHeader header;
		uint16_t outgoingPeerID;
		uint8_t incomingSessionID;
		uint8_t outgoingSessionID;
		uint32_t mtu;
		uint32_t windowSize;
		uint32_t channelCount;
		uint32_t incomingBandwidth;
		uint32_t outgoingBandwidth;
		uint32_t packetThrottleInterval;
		uint32_t packetThrottleAcceleration;
		uint32_t packetThrottleDeceleration;
		uint32_t connectID;
		uint32_t data;
	} ENET_PACKED ENetProtocolConnect;

	typedef struct _ENetProtocolVerifyConnect {
		ENetProtocolCommandHeader header;
		uint16_t outgoingPeerID;
		uint8_t incomingSessionID;
		uint8_t outgoingSessionID;
		uint32_t mtu;
		uint32_t windowSize;
		uint32_t channelCount;
		uint32_t incomingBandwidth;
		uint32_t outgoingBandwidth;
		uint32_t packetThrottleInterval;
		uint32_t packetThrottleAcceleration;
		uint32_t packetThrottleDeceleration;
		uint32_t connectID;
	} ENET_PACKED ENetProtocolVerifyConnect;

	typedef struct _ENetProtocolBandwidthLimit {
		ENetProtocolCommandHeader header;
		uint32_t incomingBandwidth;
		uint32_t outgoingBandwidth;
	} ENET_PACKED ENetProtocolBandwidthLimit;

	typedef struct _ENetProtocolThrottleConfigure {
		ENetProtocolCommandHeader header;
		uint32_t packetThrottleInterval;
		uint32_t packetThrottleAcceleration;
		uint32_t packetThrottleDeceleration;
	} ENET_PACKED ENetProtocolThrottleConfigure;

	typedef struct _ENetProtocolDisconnect {
		ENetProtocolCommandHeader header;
		uint32_t data;
	} ENET_PACKED ENetProtocolDisconnect;

	typedef struct _ENetProtocolPing {
		ENetProtocolCommandHeader header;
	} ENET_PACKED ENetProtocolPing;

	typedef struct _ENetProtocolSendReliable {
		ENetProtocolCommandHeader header;
		uint16_t dataLength;
	} ENET_PACKED ENetProtocolSendReliable;

	typedef struct _ENetProtocolSendUnreliable {
		ENetProtocolCommandHeader header;
		uint16_t unreliableSequenceNumber;
		uint16_t dataLength;
	} ENET_PACKED ENetProtocolSendUnreliable;

	typedef struct _ENetProtocolSendUnsequenced {
		ENetProtocolCommandHeader header;
		uint16_t unsequencedGroup;
		uint16_t dataLength;
	} ENET_PACKED ENetProtocolSendUnsequenced;

	typedef struct _ENetProtocolSendFragment {
		ENetProtocolCommandHeader header;
		uint16_t startSequenceNumber;
		uint16_t dataLength;
		uint32_t fragmentCount;
		uint32_t fragmentNumber;
		uint32_t totalLength;
		uint32_t fragmentOffset;
	} ENET_PACKED ENetProtocolSendFragment;

	typedef union _ENetProtocol {
		ENetProtocolCommandHeader header;
		ENetProtocolAcknowledge acknowledge;
		ENetProtocolConnect connect;
		ENetProtocolVerifyConnect verifyConnect;
		ENetProtocolDisconnect disconnect;
		ENetProtocolPing ping;
		ENetProtocolSendReliable sendReliable;
		ENetProtocolSendUnreliable sendUnreliable;
		ENetProtocolSendUnsequenced sendUnsequenced;
		ENetProtocolSendFragment sendFragment;
		ENetProtocolBandwidthLimit bandwidthLimit;
		ENetProtocolThrottleConfigure throttleConfigure;
	} ENET_PACKED ENetProtocol;

#ifdef _MSC_VER
#pragma pack(pop)
#endif

	/*
	=======================================================================
		General structs/enums
	=======================================================================
	*/

	typedef enum _ENetSocketType {
		ENET_SOCKET_TYPE_STREAM = 1,
		ENET_SOCKET_TYPE_DATAGRAM = 2
	} ENetSocketType;

	typedef enum _ENetSocketWait {
		ENET_SOCKET_WAIT_NONE = 0,
		ENET_SOCKET_WAIT_SEND = (1 << 0),
		ENET_SOCKET_WAIT_RECEIVE = (1 << 1),
		ENET_SOCKET_WAIT_INTERRUPT = (1 << 2)
	} ENetSocketWait;

	typedef enum _ENetSocketOption {
		ENET_SOCKOPT_NONBLOCK = 1,
		ENET_SOCKOPT_BROADCAST = 2,
		ENET_SOCKOPT_RCVBUF = 3,
		ENET_SOCKOPT_SNDBUF = 4,
		ENET_SOCKOPT_REUSEADDR = 5,
		ENET_SOCKOPT_RCVTIMEO = 6,
		ENET_SOCKOPT_SNDTIMEO = 7,
		ENET_SOCKOPT_ERROR = 8,
		ENET_SOCKOPT_NODELAY = 9,
		ENET_SOCKOPT_IPV6_V6ONLY = 10
	} ENetSocketOption;

	typedef enum _ENetSocketShutdown {
		ENET_SOCKET_SHUTDOWN_READ = 0,
		ENET_SOCKET_SHUTDOWN_WRITE = 1,
		ENET_SOCKET_SHUTDOWN_READ_WRITE = 2
	} ENetSocketShutdown;

	typedef struct _ENetAddress {
		union {
			struct in6_addr ipv6;
			struct {
				uint8_t zeros[10];
				uint16_t ffff;
				struct in_addr ip;
			} ipv4;
		};
		uint16_t port;
	} ENetAddress;

	typedef enum _ENetPacketFlag {
		ENET_PACKET_FLAG_NONE = 0,
		ENET_PACKET_FLAG_RELIABLE = (1 << 0),
		ENET_PACKET_FLAG_UNSEQUENCED = (1 << 1),
		ENET_PACKET_FLAG_NO_ALLOCATE = (1 << 2),
		ENET_PACKET_FLAG_UNRELIABLE_FRAGMENTED = (1 << 3),
		ENET_PACKET_FLAG_INSTANT = (1 << 4),
		ENET_PACKET_FLAG_CRUCIAL = (1 << 5),
		ENET_PACKET_FLAG_SENT = (1 << 8)
	} ENetPacketFlag;

	typedef void (ENET_CALLBACK* ENetPacketFreeCallback)(void*);

	typedef struct _ENetPacket {
		uint32_t flags;
		uint32_t dataLength;
		uint8_t* data;
		ENetPacketFreeCallback freeCallback;
		uint32_t referenceCount;
		void* userData;
	} ENetPacket;

	typedef struct _ENetAcknowledgement {
		ENetListNode acknowledgementList;
		uint32_t sentTime;
		ENetProtocol command;
	} ENetAcknowledgement;

	typedef struct _ENetOutgoingCommand {
		ENetListNode outgoingCommandList;
		uint16_t reliableSequenceNumber;
		uint16_t unreliableSequenceNumber;
		uint32_t sentTime;
		uint32_t roundTripTimeout;
		uint32_t roundTripTimeoutLimit;
		uint32_t fragmentOffset;
		uint16_t fragmentLength;
		uint16_t sendAttempts;
		ENetProtocol command;
		ENetPacket* packet;
	} ENetOutgoingCommand;

	typedef struct _ENetIncomingCommand {
		ENetListNode incomingCommandList;
		uint16_t reliableSequenceNumber;
		uint16_t unreliableSequenceNumber;
		ENetProtocol command;
		uint32_t fragmentCount;
		uint32_t fragmentsRemaining;
		uint32_t* fragments;
		ENetPacket* packet;
	} ENetIncomingCommand;

	typedef enum _ENetPeerState {
		ENET_PEER_STATE_DISCONNECTED = 0,
		ENET_PEER_STATE_CONNECTING = 1,
		ENET_PEER_STATE_ACKNOWLEDGING_CONNECT = 2,
		ENET_PEER_STATE_CONNECTION_PENDING = 3,
		ENET_PEER_STATE_CONNECTION_SUCCEEDED = 4,
		ENET_PEER_STATE_CONNECTED = 5,
		ENET_PEER_STATE_DISCONNECT_LATER = 6,
		ENET_PEER_STATE_DISCONNECTING = 7,
		ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT = 8,
		ENET_PEER_STATE_ZOMBIE = 9
	} ENetPeerState;

	enum {
		ENET_HOST_BUFFER_SIZE_MIN = 256 * 1024,
		ENET_HOST_BUFFER_SIZE_MAX = 1024 * 1024,
		ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL = 1000,
		ENET_HOST_DEFAULT_MTU = 1280,
		ENET_HOST_DEFAULT_MAXIMUM_PACKET_SIZE = 32 * 1024 * 1024,
		ENET_HOST_DEFAULT_MAXIMUM_WAITING_DATA = 32 * 1024 * 1024,
		ENET_PEER_DEFAULT_ROUND_TRIP_TIME = 500,
		ENET_PEER_DEFAULT_PACKET_THROTTLE = 32,
		ENET_PEER_PACKET_THROTTLE_THRESHOLD = 20,
		ENET_PEER_PACKET_THROTTLE_SCALE = 32,
		ENET_PEER_PACKET_THROTTLE_COUNTER = 7,
		ENET_PEER_PACKET_THROTTLE_ACCELERATION = 2,
		ENET_PEER_PACKET_THROTTLE_DECELERATION = 2,
		ENET_PEER_PACKET_THROTTLE_INTERVAL = 5000,
		ENET_PEER_PACKET_LOSS_SCALE = (1 << 16),
		ENET_PEER_PACKET_LOSS_INTERVAL = 10000,
		ENET_PEER_WINDOW_SIZE_SCALE = 64 * 1024,
		ENET_PEER_TIMEOUT_LIMIT = 32,
		ENET_PEER_TIMEOUT_MINIMUM = 5000,
		ENET_PEER_TIMEOUT_MAXIMUM = 30000,
		ENET_PEER_PING_INTERVAL = 500,
		ENET_PEER_UNSEQUENCED_WINDOWS = 64,
		ENET_PEER_UNSEQUENCED_WINDOW_SIZE = 1024,
		ENET_PEER_FREE_UNSEQUENCED_WINDOWS = 32,
		ENET_PEER_RELIABLE_WINDOWS = 16,
		ENET_PEER_RELIABLE_WINDOW_SIZE = 0x1000,
		ENET_PEER_FREE_RELIABLE_WINDOWS = 8
	};

	typedef struct _ENetChannel {
		uint16_t outgoingReliableSequenceNumber;
		uint16_t outgoingUnreliableSequenceNumber;
		uint16_t usedReliableWindows;
		uint16_t reliableWindows[ENET_PEER_RELIABLE_WINDOWS];
		uint16_t incomingReliableSequenceNumber;
		uint16_t incomingUnreliableSequenceNumber;
		ENetList incomingReliableCommands;
		ENetList incomingUnreliableCommands;
	} ENetChannel;

	typedef struct _ENetPeer {
		ENetListNode dispatchList;
		struct _ENetHost* host;
		uint16_t outgoingPeerID;
		uint16_t incomingPeerID;
		uint32_t connectID;
		uint8_t outgoingSessionID;
		uint8_t incomingSessionID;
		ENetAddress address;
		void* data;
		ENetPeerState state;
		ENetChannel* channels;
		size_t channelCount;
		uint32_t incomingBandwidth;
		uint32_t outgoingBandwidth;
		uint32_t incomingBandwidthThrottleEpoch;
		uint32_t outgoingBandwidthThrottleEpoch;
		uint32_t incomingDataTotal;
		uint64_t totalDataReceived;
		uint32_t outgoingDataTotal;
		uint64_t totalDataSent;
		uint32_t lastSendTime;
		uint32_t lastReceiveTime;
		uint32_t nextTimeout;
		uint32_t earliestTimeout;
		uint32_t packetLossEpoch;
		uint32_t packetsSent;
		uint64_t totalPacketsSent;
		uint32_t packetsLost;
		uint64_t totalPacketsLost;
		uint32_t packetLoss;
		uint32_t packetLossVariance;
		uint32_t packetThrottle;
		uint32_t packetThrottleThreshold;
		uint32_t packetThrottleLimit;
		uint32_t packetThrottleCounter;
		uint32_t packetThrottleEpoch;
		uint32_t packetThrottleAcceleration;
		uint32_t packetThrottleDeceleration;
		uint32_t packetThrottleInterval;
		uint32_t pingInterval;
		uint32_t timeoutLimit;
		uint32_t timeoutMinimum;
		uint32_t timeoutMaximum;
		uint32_t lastRoundTripTime;
		uint32_t lowestRoundTripTime;
		uint32_t lastRoundTripTimeVariance;
		uint32_t highestRoundTripTimeVariance;
		uint32_t roundTripTime;
		uint32_t roundTripTimeVariance;
		uint32_t mtu;
		uint32_t windowSize;
		uint32_t reliableDataInTransit;
		uint16_t outgoingReliableSequenceNumber;
		ENetList acknowledgements;
		ENetList sentReliableCommands;
		ENetList sentUnreliableCommands;
		ENetList outgoingReliableCommands;
		ENetList outgoingUnreliableCommands;
		ENetList dispatchedCommands;
		int needsDispatch;
		uint16_t incomingUnsequencedGroup;
		uint16_t outgoingUnsequencedGroup;
		uint32_t unsequencedWindow[ENET_PEER_UNSEQUENCED_WINDOW_SIZE / 32];
		uint32_t eventData;
		size_t totalWaitingData;
	} ENetPeer;

	typedef uint32_t(ENET_CALLBACK* ENetChecksumCallback)(const ENetBuffer* buffers, size_t bufferCount);

	typedef int (ENET_CALLBACK* ENetInterceptCallback)(struct _ENetHost* host, void* event);

	typedef struct _ENetHost {
		ENetSocket socket;
		ENetAddress address;
		uint32_t incomingBandwidth;
		uint32_t outgoingBandwidth;
		uint32_t bandwidthThrottleEpoch;
		uint32_t mtu;
		uint32_t randomSeed;
		int recalculateBandwidthLimits;
		uint8_t preventConnections;
		ENetPeer* peers;
		size_t peerCount;
		size_t channelLimit;
		uint32_t serviceTime;
		ENetList dispatchQueue;
		int continueSending;
		size_t packetSize;
		uint16_t headerFlags;
		uint32_t totalSentData;
		uint32_t totalSentPackets;
		uint32_t totalReceivedData;
		uint32_t totalReceivedPackets;
		ENetProtocol commands[ENET_PROTOCOL_MAXIMUM_PACKET_COMMANDS];
		size_t commandCount;
		ENetBuffer buffers[ENET_BUFFER_MAXIMUM];
		size_t bufferCount;
		ENetChecksumCallback checksumCallback;
		uint8_t packetData[2][ENET_PROTOCOL_MAXIMUM_MTU];
		ENetAddress receivedAddress;
		uint8_t* receivedData;
		size_t receivedDataLength;
		ENetInterceptCallback interceptCallback;
		size_t connectedPeers;
		size_t bandwidthLimitedPeers;
		size_t duplicatePeers;
		size_t maximumPacketSize;
		size_t maximumWaitingData;
	} ENetHost;

	typedef enum _ENetEventType {
		ENET_EVENT_TYPE_NONE = 0,
		ENET_EVENT_TYPE_CONNECT = 1,
		ENET_EVENT_TYPE_DISCONNECT = 2,
		ENET_EVENT_TYPE_RECEIVE = 3,
		ENET_EVENT_TYPE_DISCONNECT_TIMEOUT = 4
	} ENetEventType;

	typedef struct _ENetEvent {
		ENetEventType type;
		ENetPeer* peer;
		uint8_t channelID;
		uint32_t data;
		ENetPacket* packet;
	} ENetEvent;

	/*
	=======================================================================
		Public API
	=======================================================================
	*/

	ENET_API int enet_initialize(void);
	ENET_API int enet_initialize_with_callbacks(ENetVersion, const ENetCallbacks*);
	ENET_API void enet_deinitialize(void);
	ENET_API ENetVersion enet_linked_version(void);
	ENET_API int enet_array_is_zeroed(const uint8_t*, int);
	ENET_API uint32_t enet_time_get(void);
	ENET_API uint32_t enet_crc32(const ENetBuffer*, size_t);

	ENET_API ENetPacket* enet_packet_create(const void*, size_t, uint32_t);
	ENET_API ENetPacket* enet_packet_create_offset(const void*, size_t, size_t, uint32_t);
	ENET_API void enet_packet_destroy(ENetPacket*);

	ENET_API int enet_peer_send(ENetPeer*, uint8_t, ENetPacket*);
	ENET_API ENetPacket* enet_peer_receive(ENetPeer*, uint8_t*);
	ENET_API void enet_peer_ping(ENetPeer*);
	ENET_API void enet_peer_ping_interval(ENetPeer*, uint32_t);
	ENET_API void enet_peer_timeout(ENetPeer*, uint32_t, uint32_t, uint32_t);
	ENET_API void enet_peer_reset(ENetPeer*);
	ENET_API void enet_peer_disconnect(ENetPeer*, uint32_t);
	ENET_API void enet_peer_disconnect_now(ENetPeer*, uint32_t);
	ENET_API void enet_peer_disconnect_later(ENetPeer*, uint32_t);
	ENET_API void enet_peer_throttle_configure(ENetPeer*, uint32_t, uint32_t, uint32_t, uint32_t);

	ENET_API ENetHost* enet_host_create(const ENetAddress*, size_t, size_t, uint32_t, uint32_t, int);
	ENET_API void enet_host_destroy(ENetHost*);
	ENET_API void enet_host_prevent_connections(ENetHost*, uint8_t);
	ENET_API ENetPeer* enet_host_connect(ENetHost*, const ENetAddress*, size_t, uint32_t);
	ENET_API int enet_host_check_events(ENetHost*, ENetEvent*);
	ENET_API int enet_host_service(ENetHost*, ENetEvent*, uint32_t);
	ENET_API void enet_host_flush(ENetHost*);
	ENET_API void enet_host_broadcast(ENetHost*, uint8_t, ENetPacket*);
	ENET_API void enet_host_broadcast_exclude(ENetHost*, uint8_t, ENetPacket*, ENetPeer*);
	ENET_API void enet_host_broadcast_selective(ENetHost*, uint8_t, ENetPacket*, ENetPeer**, size_t);
	ENET_API void enet_host_channel_limit(ENetHost*, size_t);
	ENET_API void enet_host_bandwidth_limit(ENetHost*, uint32_t, uint32_t);

	ENET_API int enet_address_set_ip(ENetAddress*, const char*);
	ENET_API int enet_address_set_hostname(ENetAddress*, const char*);
	ENET_API int enet_address_get_ip(const ENetAddress*, char*, size_t);
	ENET_API int enet_address_get_hostname(const ENetAddress*, char*, size_t);

	ENET_API ENetSocket enet_socket_create(ENetSocketType);
	ENET_API int enet_socket_bind(ENetSocket, const ENetAddress*);
	ENET_API int enet_socket_get_address(ENetSocket, ENetAddress*);
	ENET_API int enet_socket_listen(ENetSocket, int);
	ENET_API ENetSocket enet_socket_accept(ENetSocket, ENetAddress*);
	ENET_API int enet_socket_connect(ENetSocket, const ENetAddress*);
	ENET_API int enet_socket_send(ENetSocket, const ENetAddress*, const ENetBuffer*, size_t);
	ENET_API int enet_socket_receive(ENetSocket, ENetAddress*, ENetBuffer*, size_t);
	ENET_API int enet_socket_wait(ENetSocket, uint32_t*, uint64_t);
	ENET_API int enet_socket_set_option(ENetSocket, ENetSocketOption, int);
	ENET_API int enet_socket_get_option(ENetSocket, ENetSocketOption, int*);
	ENET_API int enet_socket_shutdown(ENetSocket, ENetSocketShutdown);
	ENET_API void enet_socket_destroy(ENetSocket);
	ENET_API int enet_socket_set_select(ENetSocket, ENetSocketSet*, ENetSocketSet*, uint32_t);

	/* Extended API for easier binding in other programming languages */
	ENET_API void* enet_packet_get_data(const ENetPacket*);
	ENET_API void* enet_packet_get_user_data(const ENetPacket*);
	ENET_API void enet_packet_set_user_data(ENetPacket*, void* userData);
	ENET_API int enet_packet_get_length(const ENetPacket*);
	ENET_API void enet_packet_set_free_callback(ENetPacket*, const void*);
	ENET_API int enet_packet_check_references(const ENetPacket*);
	ENET_API void enet_packet_dispose(ENetPacket*);

	ENET_API uint32_t enet_host_get_peers_count(const ENetHost*);
	ENET_API uint32_t enet_host_get_packets_sent(const ENetHost*);
	ENET_API uint32_t enet_host_get_packets_received(const ENetHost*);
	ENET_API uint32_t enet_host_get_bytes_sent(const ENetHost*);
	ENET_API uint32_t enet_host_get_bytes_received(const ENetHost*);

	ENET_API uint32_t enet_peer_get_id(const ENetPeer*);
	ENET_API int enet_peer_get_ip(const ENetPeer*, char*, size_t);
	ENET_API uint16_t enet_peer_get_port(const ENetPeer*);
	ENET_API uint32_t enet_peer_get_mtu(const ENetPeer*);
	ENET_API ENetPeerState enet_peer_get_state(const ENetPeer*);
	ENET_API uint32_t enet_peer_get_rtt(const ENetPeer*);
	ENET_API uint32_t enet_peer_get_last_rtt(const ENetPeer* peer);
	ENET_API uint32_t enet_peer_get_lastsendtime(const ENetPeer*);
	ENET_API uint32_t enet_peer_get_lastreceivetime(const ENetPeer*);
	ENET_API uint64_t enet_peer_get_packets_sent(const ENetPeer*);
	ENET_API uint64_t enet_peer_get_packets_lost(const ENetPeer*);
	ENET_API uint64_t enet_peer_get_bytes_sent(const ENetPeer*);
	ENET_API uint64_t enet_peer_get_bytes_received(const ENetPeer*);
	ENET_API void* enet_peer_get_data(const ENetPeer*);
	ENET_API void enet_peer_set_data(ENetPeer*, const void*);

	/*
	=======================================================================
		Private API
	=======================================================================
	*/

	extern void enet_host_bandwidth_throttle(ENetHost*);
	extern uint64_t enet_host_random_seed(void);

	extern int enet_peer_throttle(ENetPeer*, uint32_t);
	extern void enet_peer_reset_queues(ENetPeer*);
	extern void enet_peer_setup_outgoing_command(ENetPeer*, ENetOutgoingCommand*);
	extern ENetOutgoingCommand* enet_peer_queue_outgoing_command(ENetPeer*, const ENetProtocol*, ENetPacket*, uint32_t, uint16_t);
	extern ENetIncomingCommand* enet_peer_queue_incoming_command(ENetPeer*, const ENetProtocol*, const void*, size_t, uint32_t, uint32_t);
	extern ENetAcknowledgement* enet_peer_queue_acknowledgement(ENetPeer*, const ENetProtocol*, uint16_t);
	extern void enet_peer_dispatch_incoming_unreliable_commands(ENetPeer*, ENetChannel*);
	extern void enet_peer_dispatch_incoming_reliable_commands(ENetPeer*, ENetChannel*);
	extern void enet_peer_on_connect(ENetPeer*);
	extern void enet_peer_on_disconnect(ENetPeer*);

	extern size_t enet_protocol_command_size(uint8_t);

#ifdef __cplusplus
}
#endif

#if defined(ENET_IMPLEMENTATION) && !defined(ENET_IMPLEMENTATION_DONE)
#define ENET_IMPLEMENTATION_DONE 1

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4244) /* 64-bit to 32-bit integer conversion */
#pragma warning(disable: 4267) /* size_t to integer conversion */
#endif

/*
=======================================================================
	Atomics
=======================================================================
*/

#ifdef _MSC_VER
#define ENET_AT_CASSERT_PRED(predicate) sizeof(char[2 * !!(predicate) - 1])
#define ENET_IS_SUPPORTED_ATOMIC(size) ENET_AT_CASSERT_PRED(size == 1 || size == 2 || size == 4 || size == 8)
#define ENET_ATOMIC_SIZEOF(variable) (ENET_IS_SUPPORTED_ATOMIC(sizeof(*(variable))), sizeof(*(variable)))

__inline int64_t enet_at_atomic_read(char* ptr, size_t size) {
	switch (size) {
	case 1:
		return _InterlockedExchangeAdd8((volatile char*)ptr, 0);

	case 2:
		return _InterlockedExchangeAdd16((volatile SHORT*)ptr, 0);

	case 4:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchangeAdd((volatile LONG*)ptr, 0);
#else
		return _InterlockedExchangeAdd((volatile LONG*)ptr, 0);
#endif

	case 8:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchangeAdd64((volatile LONGLONG*)ptr, 0);
#else
		return _InterlockedExchangeAdd64((volatile LONGLONG*)ptr, 0);
#endif

	default:
		return 0x0;
	}
}

__inline int64_t enet_at_atomic_write(char* ptr, int64_t value, size_t size) {
	switch (size) {
	case 1:
		return _InterlockedExchange8((volatile char*)ptr, (char)value);

	case 2:
		return _InterlockedExchange16((volatile SHORT*)ptr, (SHORT)value);

	case 4:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchange((volatile LONG*)ptr, (LONG)value);
#else
		return _InterlockedExchange((volatile LONG*)ptr, (LONG)value);
#endif

	case 8:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchange64((volatile LONGLONG*)ptr, (LONGLONG)value);
#else
		return _InterlockedExchange64((volatile LONGLONG*)ptr, (LONGLONG)value);
#endif

	default:
		return 0x0;
	}
}

__inline int64_t enet_at_atomic_cas(char* ptr, int64_t new_val, int64_t old_val, size_t size) {
	switch (size) {
	case 1:
		return _InterlockedCompareExchange8((volatile char*)ptr, (char)new_val, (char)old_val);

	case 2:
		return _InterlockedCompareExchange16((volatile SHORT*)ptr, (SHORT)new_val, (SHORT)old_val);

	case 4:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedCompareExchange((volatile LONG*)ptr, (LONG)new_val, (LONG)old_val);
#else
		return _InterlockedCompareExchange((volatile LONG*)ptr, (LONG)new_val, (LONG)old_val);
#endif

	case 8:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedCompareExchange64((volatile LONGLONG*)ptr, (LONGLONG)new_val, (LONGLONG)old_val);
#else
		return _InterlockedCompareExchange64((volatile LONGLONG*)ptr, (LONGLONG)new_val, (LONGLONG)old_val);
#endif

	default:
		return 0x0;
	}
}

__inline int64_t enet_at_atomic_inc(char* ptr, int64_t delta, size_t data_size) {
	switch (data_size) {
	case 1:
		return _InterlockedExchangeAdd8((volatile char*)ptr, (char)delta);

	case 2:
		return _InterlockedExchangeAdd16((volatile SHORT*)ptr, (SHORT)delta);

	case 4:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchangeAdd((volatile LONG*)ptr, (LONG)delta);
#else
		return _InterlockedExchangeAdd((volatile LONG*)ptr, (LONG)delta);
#endif

	case 8:
#ifdef NOT_UNDERSCORED_INTERLOCKED_EXCHANGE
		return InterlockedExchangeAdd64((volatile LONGLONG*)ptr, (LONGLONG)delta);
#else
		return _InterlockedExchangeAdd64((volatile LONGLONG*)ptr, (LONGLONG)delta);
#endif

	default:
		return 0x0;
	}
}

#define ENET_ATOMIC_READ(variable) enet_at_atomic_read((char*)(variable), ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_WRITE(variable, new_val) enet_at_atomic_write((char*)(variable), (int64_t)(new_val), ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_CAS(variable, old_value, new_val) enet_at_atomic_cas((char*)(variable), (int64_t)(new_val), (int64_t)(old_value), ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_INC(variable) enet_at_atomic_inc((char*)(variable), 1, ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_DEC(variable) enet_at_atomic_inc((char*)(variable), -1, ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_INC_BY(variable, delta) enet_at_atomic_inc((char*)(variable), (delta), ENET_ATOMIC_SIZEOF(variable))
#define ENET_ATOMIC_DEC_BY(variable, delta) enet_at_atomic_inc((char*)(variable), -(delta), ENET_ATOMIC_SIZEOF(variable))
#elif defined(__GNUC__) || defined(__clang__)
#if defined(__clang__) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
#define AT_HAVE_ATOMICS
#endif

/* We want to use __atomic built-ins if possible because the __sync primitives are
deprecated, because the __atomic build-ins allow us to use ENET_ATOMIC_WRITE on
uninitialized memory without running into undefined behavior, and because the
__atomic versions generate more efficient code since we don't need to rely on
CAS when we don't actually want it.

Note that we use acquire-release memory order (like mutexes do). We could use
sequentially consistent memory order but that has lower performance and is
almost always unneeded. */
#ifdef AT_HAVE_ATOMICS
#define ENET_ATOMIC_READ(ptr) __atomic_load_n((ptr), __ATOMIC_ACQUIRE)
#define ENET_ATOMIC_WRITE(ptr, value) __atomic_store_n((ptr), (value), __ATOMIC_RELEASE)

#ifndef typeof
#define typeof __typeof__
#endif

/* clang_analyzer doesn't know that CAS writes to memory so it complains about
potentially lost data. Replace the code with the equivalent non-sync code. */
#ifdef __clang_analyzer__
#define ENET_ATOMIC_CAS(ptr, old_value, new_value)                                                                   \
					({                                                                                                               \
						typeof(*(ptr)) ENET_ATOMIC_CAS_old_actual_ = (*(ptr));                                                       \
						if (ATOMIC_CAS_old_actual_ == (old_value))                                                                   \
							*(ptr) = new_value;                                                                                      \
						ENET_ATOMIC_CAS_old_actual_;                                                                                 \
					})
#else
/* Could use __auto_type instead of typeof but that shouldn't work in C++.
The ({ }) syntax is a GCC extension called statement expression. It lets
us return a value out of the macro.

TODO We should return bool here instead of the old value to avoid the ABA
problem. */
#define ENET_ATOMIC_CAS(ptr, old_value, new_value)                                                                   \
					({                                                                                                               \
						typeof(*(ptr)) ENET_ATOMIC_CAS_expected_ = (old_value);                                                      \
						__atomic_compare_exchange_n((ptr), &ENET_ATOMIC_CAS_expected_, (new_value), false,                           \
						__ATOMIC_ACQ_REL, __ATOMIC_ACQUIRE);                                                                         \
						ENET_ATOMIC_CAS_expected_;                                                                                   \
					})
#endif

#define ENET_ATOMIC_INC(ptr) __atomic_fetch_add((ptr), 1, __ATOMIC_ACQ_REL)
#define ENET_ATOMIC_DEC(ptr) __atomic_fetch_sub((ptr), 1, __ATOMIC_ACQ_REL)
#define ENET_ATOMIC_INC_BY(ptr, delta) __atomic_fetch_add((ptr), (delta), __ATOMIC_ACQ_REL)
#define ENET_ATOMIC_DEC_BY(ptr, delta) __atomic_fetch_sub((ptr), (delta), __ATOMIC_ACQ_REL)
#else
#define ENET_ATOMIC_READ(variable) __sync_fetch_and_add(variable, 0)
#define ENET_ATOMIC_WRITE(variable, new_val) (void)__sync_val_compare_and_swap((variable), *(variable), (new_val))
#define ENET_ATOMIC_CAS(variable, old_value, new_val) __sync_val_compare_and_swap((variable), (old_value), (new_val))
#define ENET_ATOMIC_INC(variable) __sync_fetch_and_add((variable), 1)
#define ENET_ATOMIC_DEC(variable) __sync_fetch_and_sub((variable), 1)
#define ENET_ATOMIC_INC_BY(variable, delta) __sync_fetch_and_add((variable), (delta), 1)
#define ENET_ATOMIC_DEC_BY(variable, delta) __sync_fetch_and_sub((variable), (delta), 1)
#endif
#undef AT_HAVE_ATOMICS
#endif

/*
=======================================================================
	Callbacks
=======================================================================
*/

static ENetCallbacks callbacks = {
	malloc,
	free,
	abort
};

int enet_initialize_with_callbacks(ENetVersion version, const ENetCallbacks* inits) {
	if (version < ENET_VERSION_CREATE(1, 3, 0)) {
		ENET_LOG_ERROR("ENET version is too old");
		return -1;
	}

	if (inits->malloc != NULL || inits->free != NULL) {
		if (inits->malloc == NULL || inits->free == NULL) {
			ENET_LOG_ERROR("Memory allocator/free mechanism is NULL");
			return -1;
		}


		callbacks.malloc = inits->malloc;
		callbacks.free = inits->free;
	}

	if (inits->noMemory != NULL)
		callbacks.noMemory = inits->noMemory;

	return enet_initialize();
}

void* enet_malloc(size_t size) {
	void* memory = callbacks.malloc(size);

	if (memory == NULL)
		callbacks.noMemory();

	return memory;
}

void enet_free(void* memory) {
	callbacks.free(memory);
}

/*
=======================================================================

	List

=======================================================================
*/

void enet_list_clear(ENetList* list) {
	list->sentinel.next = &list->sentinel;
	list->sentinel.previous = &list->sentinel;
}

ENetListIterator enet_list_insert(ENetListIterator position, void* data) {
	ENetListIterator result = (ENetListIterator)data;
	result->previous = position->previous;
	result->next = position;
	result->previous->next = result;
	position->previous = result;

	return result;
}

void* enet_list_remove(ENetListIterator position) {
	position->previous->next = position->next;
	position->next->previous = position->previous;

	return position;
}

ENetListIterator enet_list_move(ENetListIterator position, void* dataFirst, void* dataLast) {
	ENetListIterator first = (ENetListIterator)dataFirst;
	ENetListIterator last = (ENetListIterator)dataLast;
	first->previous->next = last->next;
	last->next->previous = first->previous;
	first->previous = position->previous;
	last->next = position;
	first->previous->next = first;
	position->previous = last;

	return first;
}

size_t enet_list_size(ENetList* list) {
	size_t size = 0;
	ENetListIterator position;

	for (position = enet_list_begin(list); position != enet_list_end(list); position = enet_list_next(position)) {
		++size;
	}

	return size;
}

/*
=======================================================================

	Utilities

=======================================================================
*/

ENetVersion enet_linked_version(void) {
	return ENET_VERSION;
}

int enet_array_is_zeroed(const uint8_t* array, int length) {
	size_t i;

	for (i = 0; i < length; i++) {
		if (array[i] != 0)
			return -1;
	}

	return 0;
}

/*
=======================================================================

	Time

=======================================================================
*/

#ifdef _WIN32
static LARGE_INTEGER gettime_offset(void) {
	SYSTEMTIME s;
	FILETIME f;
	LARGE_INTEGER t;
	s.wYear = 1970;
	s.wMonth = 1;
	s.wDay = 1;
	s.wHour = 0;
	s.wMinute = 0;
	s.wSecond = 0;
	s.wMilliseconds = 0;

	SystemTimeToFileTime(&s, &f);

	t.QuadPart = f.dwHighDateTime;
	t.QuadPart <<= 32;
	t.QuadPart |= f.dwLowDateTime;

	return t;
}

int clock_gettime(int X, struct timespec* tv) {
	LARGE_INTEGER t;
	FILETIME f;
	double microseconds;

	static LARGE_INTEGER offset;
	static double frequencyToMicroseconds;
	static int initialized = 0;
	static BOOL usePerformanceCounter = 0;

	if (!initialized) {
		LARGE_INTEGER performanceFrequency;
		initialized = 1;
		usePerformanceCounter = QueryPerformanceFrequency(&performanceFrequency);

		if (usePerformanceCounter) {
			QueryPerformanceCounter(&offset);

			frequencyToMicroseconds = (double)performanceFrequency.QuadPart / 1000000.;
		}
		else {
			offset = gettime_offset();
			frequencyToMicroseconds = 10.;
		}
	}

	if (usePerformanceCounter) {
		QueryPerformanceCounter(&t);
	}
	else {
		GetSystemTimeAsFileTime(&f);

		t.QuadPart = f.dwHighDateTime;
		t.QuadPart <<= 32;
		t.QuadPart |= f.dwLowDateTime;
	}

	t.QuadPart -= offset.QuadPart;
	microseconds = (double)t.QuadPart / frequencyToMicroseconds;
	t.QuadPart = (LONGLONG)microseconds;
	tv->tv_sec = (long)(t.QuadPart / 1000000);
	tv->tv_nsec = t.QuadPart % 1000000 * 1000;

	return 0;
}
#elif __APPLE__ && (__MAC_OS_X_VERSION_MIN_REQUIRED < 101200 || __IPHONE_OS_VERSION_MIN_REQUIRED < 100000) && !defined(CLOCK_MONOTONIC)
#define CLOCK_MONOTONIC 0

int clock_gettime(int X, struct timespec* ts) {
	clock_serv_t cclock;
	mach_timespec_t mts;

	host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
	clock_get_time(cclock, &mts);
	mach_port_deallocate(mach_task_self(), cclock);

	ts->tv_sec = mts.tv_sec;
	ts->tv_nsec = mts.tv_nsec;

	return 0;
}
#endif

uint32_t enet_time_get(void) {
	static uint64_t start_time_ns = 0;

	struct timespec ts;

#ifdef CLOCK_MONOTONIC_RAW
	clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
#else
	clock_gettime(CLOCK_MONOTONIC, &ts);
#endif

	static const uint64_t ns_in_s = 1000 * 1000 * 1000;
	static const uint64_t ns_in_ms = 1000 * 1000;

	uint64_t current_time_ns = ts.tv_nsec + (uint64_t)ts.tv_sec * ns_in_s;
	uint64_t offset_ns = ENET_ATOMIC_READ(&start_time_ns);

	if (offset_ns == 0) {
		uint64_t want_value = current_time_ns - 1 * ns_in_ms;
		uint64_t old_value = ENET_ATOMIC_CAS(&start_time_ns, 0, want_value);
		offset_ns = old_value == 0 ? want_value : old_value;
	}

	uint64_t result_in_ns = current_time_ns - offset_ns;

	return (uint32_t)(result_in_ns / ns_in_ms);
}

/*
=======================================================================

	Checksum

=======================================================================
*/

static int initializedCRC32 = 0;
static uint32_t crcTable[256];

static uint32_t reflect_crc(int val, int bits) {
	int result = 0, bit;

	for (bit = 0; bit < bits; bit++) {
		if (val & 1)
			result |= 1 << (bits - 1 - bit);

		val >>= 1;
	}

	return result;
}

static void initialize_crc32(void) {
	int byte;

	for (byte = 0; byte < 256; ++byte) {
		uint32_t crc = reflect_crc(byte, 8) << 24;
		int offset;

		for (offset = 0; offset < 8; ++offset) {
			if (crc & 0x80000000)
				crc = (crc << 1) ^ 0x04c11db7;
			else
				crc <<= 1;
		}

		crcTable[byte] = reflect_crc(crc, 32);
	}

	initializedCRC32 = 1;
}

uint32_t enet_crc32(const ENetBuffer* buffers, size_t bufferCount) {
	uint32_t crc = 0xFFFFFFFF;

	if (!initializedCRC32)
		initialize_crc32();

	while (bufferCount-- > 0) {
		const uint8_t* data = (const uint8_t*)buffers->data;
		const uint8_t* dataEnd = &data[buffers->dataLength];

		while (data < dataEnd) {
			crc = (crc >> 8) ^ crcTable[(crc & 0xFF) ^ *data++];
		}

		++buffers;
	}

	return ENET_HOST_TO_NET_32(~crc);
}

/*
=======================================================================

	Packet

=======================================================================
*/

ENetPacket* enet_packet_create(const void* data, size_t dataLength, uint32_t flags) {
	ENetPacket* packet;

	if (flags & ENET_PACKET_FLAG_NO_ALLOCATE) {
		packet = (ENetPacket*)enet_malloc(sizeof(ENetPacket));

		if (packet == NULL)
			return NULL;

		packet->data = (uint8_t*)data;
	}
	else {
		packet = (ENetPacket*)enet_malloc(sizeof(ENetPacket) + dataLength);

		if (packet == NULL)
			return NULL;

		packet->data = (uint8_t*)packet + sizeof(ENetPacket);

		if (data != NULL)
			memcpy(packet->data, data, dataLength);
	}

	packet->referenceCount = 0;
	packet->flags = flags;
	packet->dataLength = dataLength;
	packet->freeCallback = NULL;
	packet->userData = NULL;

	return packet;
}

ENetPacket* enet_packet_create_offset(const void* data, size_t dataLength, size_t dataOffset, uint32_t flags) {
	ENetPacket* packet;

	if (flags & ENET_PACKET_FLAG_NO_ALLOCATE) {
		packet = (ENetPacket*)enet_malloc(sizeof(ENetPacket));

		if (packet == NULL)
			return NULL;

		packet->data = (uint8_t*)data;
	}
	else {
		packet = (ENetPacket*)enet_malloc(sizeof(ENetPacket) + dataLength - dataOffset);

		if (packet == NULL)
			return NULL;

		packet->data = (uint8_t*)packet + sizeof(ENetPacket);

		if (data != NULL)
			memcpy(packet->data, (char*)data + dataOffset, dataLength - dataOffset);
	}

	packet->referenceCount = 0;
	packet->flags = flags;
	packet->dataLength = dataLength - dataOffset;
	packet->freeCallback = NULL;
	packet->userData = NULL;

	return packet;
}

void enet_packet_destroy(ENetPacket* packet) {
	if (packet == NULL)
		return;

	if (packet->freeCallback != NULL)
		(*packet->freeCallback)((void*)packet);

	enet_free(packet);
}

/*
=======================================================================

	Protocol

=======================================================================
*/

static size_t commandSizes[ENET_PROTOCOL_COMMAND_COUNT] = {
	0,
	sizeof(ENetProtocolAcknowledge),
	sizeof(ENetProtocolConnect),
	sizeof(ENetProtocolVerifyConnect),
	sizeof(ENetProtocolDisconnect),
	sizeof(ENetProtocolPing),
	sizeof(ENetProtocolSendReliable),
	sizeof(ENetProtocolSendUnreliable),
	sizeof(ENetProtocolSendFragment),
	sizeof(ENetProtocolSendUnsequenced),
	sizeof(ENetProtocolBandwidthLimit),
	sizeof(ENetProtocolThrottleConfigure),
	sizeof(ENetProtocolSendFragment)
};

size_t enet_protocol_command_size(uint8_t commandNumber) {
	return commandSizes[commandNumber & ENET_PROTOCOL_COMMAND_MASK];
}

static void enet_protocol_change_state(ENetHost* host, ENetPeer* peer, ENetPeerState state) {
	if (state == ENET_PEER_STATE_CONNECTED || state == ENET_PEER_STATE_DISCONNECT_LATER)
		enet_peer_on_connect(peer);
	else
		enet_peer_on_disconnect(peer);

	peer->state = state;
}

static void enet_protocol_dispatch_state(ENetHost* host, ENetPeer* peer, ENetPeerState state) {
	enet_protocol_change_state(host, peer, state);

	if (!peer->needsDispatch) {
		enet_list_insert(enet_list_end(&host->dispatchQueue), &peer->dispatchList);

		peer->needsDispatch = 1;
	}
}

static int enet_protocol_dispatch_incoming_commands(ENetHost* host, ENetEvent* event) {
	while (!enet_list_empty(&host->dispatchQueue)) {
		ENetPeer* peer = (ENetPeer*)enet_list_remove(enet_list_begin(&host->dispatchQueue));
		peer->needsDispatch = 0;

		switch (peer->state) {
		case ENET_PEER_STATE_CONNECTION_PENDING:
		case ENET_PEER_STATE_CONNECTION_SUCCEEDED:
			enet_protocol_change_state(host, peer, ENET_PEER_STATE_CONNECTED);

			event->type = ENET_EVENT_TYPE_CONNECT;
			event->peer = peer;
			event->data = peer->eventData;

			return 1;

		case ENET_PEER_STATE_ZOMBIE:
			host->recalculateBandwidthLimits = 1;
			event->type = ENET_EVENT_TYPE_DISCONNECT;
			event->peer = peer;
			event->data = peer->eventData;

			enet_peer_reset(peer);

			return 1;

		case ENET_PEER_STATE_CONNECTED:
			if (enet_list_empty(&peer->dispatchedCommands))
				continue;

			event->packet = enet_peer_receive(peer, &event->channelID);

			if (event->packet == NULL)
				continue;

			event->type = ENET_EVENT_TYPE_RECEIVE;
			event->peer = peer;

			if (!enet_list_empty(&peer->dispatchedCommands)) {
				peer->needsDispatch = 1;

				enet_list_insert(enet_list_end(&host->dispatchQueue), &peer->dispatchList);
			}

			return 1;

		default:
			break;
		}
	}

	return 0;
}

static void enet_protocol_notify_connect(ENetHost* host, ENetPeer* peer, ENetEvent* event) {
	host->recalculateBandwidthLimits = 1;

	if (event != NULL) {
		enet_protocol_change_state(host, peer, ENET_PEER_STATE_CONNECTED);

		peer->totalDataSent = 0;
		peer->totalDataReceived = 0;
		peer->totalPacketsSent = 0;
		peer->totalPacketsLost = 0;
		event->type = ENET_EVENT_TYPE_CONNECT;
		event->peer = peer;
		event->data = peer->eventData;
	}
	else {
		enet_protocol_dispatch_state(host, peer, peer->state == ENET_PEER_STATE_CONNECTING ? ENET_PEER_STATE_CONNECTION_SUCCEEDED : ENET_PEER_STATE_CONNECTION_PENDING);
	}
}

static void enet_protocol_notify_disconnect(ENetHost* host, ENetPeer* peer, ENetEvent* event) {
	if (peer->state >= ENET_PEER_STATE_CONNECTION_PENDING)
		host->recalculateBandwidthLimits = 1;

	if (peer->state != ENET_PEER_STATE_CONNECTING && peer->state < ENET_PEER_STATE_CONNECTION_SUCCEEDED) {
		enet_peer_reset(peer);
	}
	else if (event != NULL) {
		event->type = ENET_EVENT_TYPE_DISCONNECT;
		event->peer = peer;
		event->data = 0;

		enet_peer_reset(peer);
	}
	else {
		peer->eventData = 0;

		enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
	}
}

static void enet_protocol_notify_disconnect_timeout(ENetHost* host, ENetPeer* peer, ENetEvent* event) {
	if (peer->state >= ENET_PEER_STATE_CONNECTION_PENDING)
		host->recalculateBandwidthLimits = 1;

	if (peer->state != ENET_PEER_STATE_CONNECTING && peer->state < ENET_PEER_STATE_CONNECTION_SUCCEEDED) {
		enet_peer_reset(peer);
	}
	else if (event != NULL) {
		event->type = ENET_EVENT_TYPE_DISCONNECT_TIMEOUT;
		event->peer = peer;
		event->data = 0;

		enet_peer_reset(peer);
	}
	else {
		peer->eventData = 0;

		enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
	}
}

static void enet_protocol_remove_sent_unreliable_commands(ENetPeer* peer) {
	ENetOutgoingCommand* outgoingCommand;

	if (enet_list_empty(&peer->sentUnreliableCommands))
		return;

	do {
		outgoingCommand = (ENetOutgoingCommand*)enet_list_front(&peer->sentUnreliableCommands);

		enet_list_remove(&outgoingCommand->outgoingCommandList);

		if (outgoingCommand->packet != NULL) {
			--outgoingCommand->packet->referenceCount;

			if (outgoingCommand->packet->referenceCount == 0) {
				outgoingCommand->packet->flags |= ENET_PACKET_FLAG_SENT;

				enet_packet_destroy(outgoingCommand->packet);
			}
		}

		enet_free(outgoingCommand);
	}

	while (!enet_list_empty(&peer->sentUnreliableCommands));

	if (peer->state == ENET_PEER_STATE_DISCONNECT_LATER && enet_list_empty(&peer->outgoingReliableCommands) && enet_list_empty(&peer->outgoingUnreliableCommands) && enet_list_empty(&peer->sentReliableCommands))
		enet_peer_disconnect(peer, peer->eventData);
}

static ENetProtocolCommand enet_protocol_remove_sent_reliable_command(ENetPeer* peer, uint16_t reliableSequenceNumber, uint8_t channelID) {
	ENetOutgoingCommand* outgoingCommand = NULL;
	ENetListIterator currentCommand;
	ENetProtocolCommand commandNumber;

	int wasSent = 1;

	for (currentCommand = enet_list_begin(&peer->sentReliableCommands); currentCommand != enet_list_end(&peer->sentReliableCommands); currentCommand = enet_list_next(currentCommand)) {
		outgoingCommand = (ENetOutgoingCommand*)currentCommand;

		if (outgoingCommand->reliableSequenceNumber == reliableSequenceNumber && outgoingCommand->command.header.channelID == channelID)
			break;
	}

	if (currentCommand == enet_list_end(&peer->sentReliableCommands)) {
		for (currentCommand = enet_list_begin(&peer->outgoingReliableCommands); currentCommand != enet_list_end(&peer->outgoingReliableCommands); currentCommand = enet_list_next(currentCommand)) {
			outgoingCommand = (ENetOutgoingCommand*)currentCommand;

			if (outgoingCommand->sendAttempts < 1)
				return ENET_PROTOCOL_COMMAND_NONE;

			if (outgoingCommand->reliableSequenceNumber == reliableSequenceNumber && outgoingCommand->command.header.channelID == channelID)
				break;
		}

		if (currentCommand == enet_list_end(&peer->outgoingReliableCommands))
			return ENET_PROTOCOL_COMMAND_NONE;

		wasSent = 0;
	}

	if (outgoingCommand == NULL)
		return ENET_PROTOCOL_COMMAND_NONE;

	if (channelID < peer->channelCount) {
		ENetChannel* channel = &peer->channels[channelID];
		uint16_t reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

		if (channel->reliableWindows[reliableWindow] > 0) {
			--channel->reliableWindows[reliableWindow];

			if (!channel->reliableWindows[reliableWindow])
				channel->usedReliableWindows &= ~(1 << reliableWindow);
		}
	}

	commandNumber = (ENetProtocolCommand)(outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK);

	enet_list_remove(&outgoingCommand->outgoingCommandList);

	if (outgoingCommand->packet != NULL) {
		if (wasSent)
			peer->reliableDataInTransit -= outgoingCommand->fragmentLength;

		--outgoingCommand->packet->referenceCount;

		if (outgoingCommand->packet->referenceCount == 0) {
			outgoingCommand->packet->flags |= ENET_PACKET_FLAG_SENT;

			enet_packet_destroy(outgoingCommand->packet);
		}
	}

	enet_free(outgoingCommand);

	if (enet_list_empty(&peer->sentReliableCommands))
		return commandNumber;

	outgoingCommand = (ENetOutgoingCommand*)enet_list_front(&peer->sentReliableCommands);
	peer->nextTimeout = outgoingCommand->sentTime + outgoingCommand->roundTripTimeout;

	return commandNumber;
}

static ENetPeer* enet_protocol_handle_connect(ENetHost* host, ENetProtocolHeader* header, ENetProtocol* command) {
	uint8_t incomingSessionID, outgoingSessionID;
	uint32_t mtu, windowSize;
	ENetChannel* channel;
	size_t channelCount, duplicatePeers = 0;
	ENetPeer* currentPeer, * peer = NULL;
	ENetProtocol verifyCommand;
	channelCount = ENET_NET_TO_HOST_32(command->connect.channelCount);

	if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT || channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
		return NULL;

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		if (currentPeer->state == ENET_PEER_STATE_DISCONNECTED) {
			if (peer == NULL)
				peer = currentPeer;
		}
		else if (currentPeer->state != ENET_PEER_STATE_CONNECTING && enet_in6_equal(currentPeer->address.ipv6, host->receivedAddress.ipv6)) {
			if (currentPeer->address.port == host->receivedAddress.port && currentPeer->connectID == command->connect.connectID)
				return NULL;

			++duplicatePeers;
		}
	}

	if (peer == NULL || duplicatePeers >= host->duplicatePeers)
		return NULL;

	if (channelCount > host->channelLimit)
		channelCount = host->channelLimit;

	peer->channels = (ENetChannel*)enet_malloc(channelCount * sizeof(ENetChannel));

	if (peer->channels == NULL)
		return NULL;

	peer->channelCount = channelCount;
	peer->state = ENET_PEER_STATE_ACKNOWLEDGING_CONNECT;
	peer->connectID = command->connect.connectID;
	peer->address = host->receivedAddress;
	peer->outgoingPeerID = ENET_NET_TO_HOST_16(command->connect.outgoingPeerID);
	peer->incomingBandwidth = ENET_NET_TO_HOST_32(command->connect.incomingBandwidth);
	peer->outgoingBandwidth = ENET_NET_TO_HOST_32(command->connect.outgoingBandwidth);
	peer->packetThrottleInterval = ENET_NET_TO_HOST_32(command->connect.packetThrottleInterval);
	peer->packetThrottleAcceleration = ENET_NET_TO_HOST_32(command->connect.packetThrottleAcceleration);
	peer->packetThrottleDeceleration = ENET_NET_TO_HOST_32(command->connect.packetThrottleDeceleration);
	peer->eventData = ENET_NET_TO_HOST_32(command->connect.data);
	incomingSessionID = command->connect.incomingSessionID == 0xFF ? peer->outgoingSessionID : command->connect.incomingSessionID;
	incomingSessionID = (incomingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);

	if (incomingSessionID == peer->outgoingSessionID)
		incomingSessionID = (incomingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);

	peer->outgoingSessionID = incomingSessionID;
	outgoingSessionID = command->connect.outgoingSessionID == 0xFF ? peer->incomingSessionID : command->connect.outgoingSessionID;
	outgoingSessionID = (outgoingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);

	if (outgoingSessionID == peer->incomingSessionID)
		outgoingSessionID = (outgoingSessionID + 1) & (ENET_PROTOCOL_HEADER_SESSION_MASK >> ENET_PROTOCOL_HEADER_SESSION_SHIFT);

	peer->incomingSessionID = outgoingSessionID;

	for (channel = peer->channels; channel < &peer->channels[channelCount]; ++channel) {
		channel->outgoingReliableSequenceNumber = 0;
		channel->outgoingUnreliableSequenceNumber = 0;
		channel->incomingReliableSequenceNumber = 0;
		channel->incomingUnreliableSequenceNumber = 0;

		enet_list_clear(&channel->incomingReliableCommands);
		enet_list_clear(&channel->incomingUnreliableCommands);

		channel->usedReliableWindows = 0;

		memset(channel->reliableWindows, 0, sizeof(channel->reliableWindows));
	}

	mtu = ENET_NET_TO_HOST_32(command->connect.mtu);

	if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
		mtu = ENET_PROTOCOL_MINIMUM_MTU;
	else if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
		mtu = ENET_PROTOCOL_MAXIMUM_MTU;

	peer->mtu = mtu;

	if (host->outgoingBandwidth == 0 && peer->incomingBandwidth == 0)
		peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
	else if (host->outgoingBandwidth == 0 || peer->incomingBandwidth == 0)
		peer->windowSize = (ENET_MAX(host->outgoingBandwidth, peer->incomingBandwidth) / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else
		peer->windowSize = (ENET_MIN(host->outgoingBandwidth, peer->incomingBandwidth) / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;

	if (peer->windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
		peer->windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else if (peer->windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
		peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

	if (host->incomingBandwidth == 0)
		windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
	else
		windowSize = (host->incomingBandwidth / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;

	if (windowSize > ENET_NET_TO_HOST_32(command->connect.windowSize))
		windowSize = ENET_NET_TO_HOST_32(command->connect.windowSize);

	if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
		windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
		windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

	verifyCommand.header.command = ENET_PROTOCOL_COMMAND_VERIFY_CONNECT | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
	verifyCommand.header.channelID = 0xFF;
	verifyCommand.verifyConnect.outgoingPeerID = ENET_HOST_TO_NET_16(peer->incomingPeerID);
	verifyCommand.verifyConnect.incomingSessionID = incomingSessionID;
	verifyCommand.verifyConnect.outgoingSessionID = outgoingSessionID;
	verifyCommand.verifyConnect.mtu = ENET_HOST_TO_NET_32(peer->mtu);
	verifyCommand.verifyConnect.windowSize = ENET_HOST_TO_NET_32(windowSize);
	verifyCommand.verifyConnect.channelCount = ENET_HOST_TO_NET_32(channelCount);
	verifyCommand.verifyConnect.incomingBandwidth = ENET_HOST_TO_NET_32(host->incomingBandwidth);
	verifyCommand.verifyConnect.outgoingBandwidth = ENET_HOST_TO_NET_32(host->outgoingBandwidth);
	verifyCommand.verifyConnect.packetThrottleInterval = ENET_HOST_TO_NET_32(peer->packetThrottleInterval);
	verifyCommand.verifyConnect.packetThrottleAcceleration = ENET_HOST_TO_NET_32(peer->packetThrottleAcceleration);
	verifyCommand.verifyConnect.packetThrottleDeceleration = ENET_HOST_TO_NET_32(peer->packetThrottleDeceleration);
	verifyCommand.verifyConnect.connectID = peer->connectID;

	enet_peer_queue_outgoing_command(peer, &verifyCommand, NULL, 0, 0);

	return peer;
}

static int enet_protocol_handle_send_reliable(ENetHost* host, ENetPeer* peer, const ENetProtocol* command, uint8_t** currentData) {
	size_t dataLength;

	if (command->header.channelID >= peer->channelCount || (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)) {
		ENET_LOG_ERROR("channel id is greater than the peer's channel count or the peer isn't in connected state and isn't pending disconnection later");
		return -1;
	}

	dataLength = ENET_NET_TO_HOST_16(command->sendReliable.dataLength);
	*currentData += dataLength;

	if (dataLength > host->maximumPacketSize || *currentData < host->receivedData || *currentData > & host->receivedData[host->receivedDataLength]) {
		ENET_LOG_ERROR("packet data length error");
		return -1;
	}


	if (enet_peer_queue_incoming_command(peer, command, (const uint8_t*)command + sizeof(ENetProtocolSendReliable), dataLength, ENET_PACKET_FLAG_RELIABLE, 0) == NULL) {
		ENET_LOG_ERROR("Could not queue incoming command, it returned NULL");
		return -1;
	}

	return 0;
}

static int enet_protocol_handle_send_unsequenced(ENetHost* host, ENetPeer* peer, const ENetProtocol* command, uint8_t** currentData) {
	uint32_t unsequencedGroup, index;
	size_t dataLength;

	if (command->header.channelID >= peer->channelCount || (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)) {
		ENET_LOG_ERROR("channel id is greater than the peer's channel count or the peer isn't in connected state and isn't pending disconnection later");
		return -1;
	}


	dataLength = ENET_NET_TO_HOST_16(command->sendUnsequenced.dataLength);
	*currentData += dataLength;

	if (dataLength > host->maximumPacketSize || *currentData < host->receivedData || *currentData > & host->receivedData[host->receivedDataLength]) {
		ENET_LOG_ERROR("packet data length error");
		return -1;
	}

	unsequencedGroup = ENET_NET_TO_HOST_16(command->sendUnsequenced.unsequencedGroup);
	index = unsequencedGroup % ENET_PEER_UNSEQUENCED_WINDOW_SIZE;

	if (unsequencedGroup < peer->incomingUnsequencedGroup)
		unsequencedGroup += 0x10000;

	if (unsequencedGroup >= (uint32_t)peer->incomingUnsequencedGroup + ENET_PEER_FREE_UNSEQUENCED_WINDOWS * ENET_PEER_UNSEQUENCED_WINDOW_SIZE)
		return 0;

	unsequencedGroup &= 0xFFFF;

	if (unsequencedGroup - index != peer->incomingUnsequencedGroup) {
		peer->incomingUnsequencedGroup = unsequencedGroup - index;

		memset(peer->unsequencedWindow, 0, sizeof(peer->unsequencedWindow));
	}
	else if (peer->unsequencedWindow[index / 32] & (1 << (index % 32))) {
		return 0;
	}

	if (enet_peer_queue_incoming_command(peer, command, (const uint8_t*)command + sizeof(ENetProtocolSendUnsequenced), dataLength, ENET_PACKET_FLAG_UNSEQUENCED, 0) == NULL) {
		ENET_LOG_ERROR("Could not queue incoming command, it returned NULL");
		return -1;
	}


	peer->unsequencedWindow[index / 32] |= 1 << (index % 32);

	return 0;
}

static int enet_protocol_handle_send_unreliable(ENetHost* host, ENetPeer* peer, const ENetProtocol* command, uint8_t** currentData) {
	size_t dataLength;

	if (command->header.channelID >= peer->channelCount || (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)) {
		ENET_LOG_ERROR("channel id is greater than the peer's channel count or the peer isn't in connected state and isn't pending disconnection later");
		return -1;
	}

	dataLength = ENET_NET_TO_HOST_16(command->sendUnreliable.dataLength);
	*currentData += dataLength;

	if (dataLength > host->maximumPacketSize || *currentData < host->receivedData || *currentData > & host->receivedData[host->receivedDataLength]) {
		ENET_LOG_ERROR("packet data length error");
		return -1;
	}

	if (enet_peer_queue_incoming_command(peer, command, (const uint8_t*)command + sizeof(ENetProtocolSendUnreliable), dataLength, 0, 0) == NULL) {
		ENET_LOG_ERROR("Could not queue incoming command, it returned NULL");
		return -1;
	}

	return 0;
}

static int enet_protocol_handle_send_fragment(ENetHost* host, ENetPeer* peer, const ENetProtocol* command, uint8_t** currentData) {
	uint32_t fragmentNumber, fragmentCount, fragmentOffset, fragmentLength, startSequenceNumber, totalLength;
	ENetChannel* channel;
	uint16_t startWindow, currentWindow;
	ENetListIterator currentCommand;
	ENetIncomingCommand* startCommand = NULL;

	if (command->header.channelID >= peer->channelCount || (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)) {
		ENET_LOG_ERROR("channel id is greater than the peer's channel count or the peer isn't in connected state and isn't pending disconnection later");
		return -1;
	}


	fragmentLength = ENET_NET_TO_HOST_16(command->sendFragment.dataLength);
	*currentData += fragmentLength;

	if (fragmentLength > host->maximumPacketSize || *currentData < host->receivedData || *currentData > & host->receivedData[host->receivedDataLength]) {
		ENET_LOG_ERROR("packet data length error");
		return -1;
	}


	channel = &peer->channels[command->header.channelID];
	startSequenceNumber = ENET_NET_TO_HOST_16(command->sendFragment.startSequenceNumber);
	startWindow = startSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
	currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

	if (startSequenceNumber < channel->incomingReliableSequenceNumber)
		startWindow += ENET_PEER_RELIABLE_WINDOWS;

	if (startWindow < currentWindow || startWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
		return 0;

	fragmentNumber = ENET_NET_TO_HOST_32(command->sendFragment.fragmentNumber);
	fragmentCount = ENET_NET_TO_HOST_32(command->sendFragment.fragmentCount);
	fragmentOffset = ENET_NET_TO_HOST_32(command->sendFragment.fragmentOffset);
	totalLength = ENET_NET_TO_HOST_32(command->sendFragment.totalLength);

	if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT || fragmentNumber >= fragmentCount || totalLength > host->maximumPacketSize || fragmentOffset >= totalLength || fragmentLength > totalLength - fragmentOffset)
	{
		ENET_LOG_ERROR("fragmented packet error");
		return -1;
	}

	for (currentCommand = enet_list_previous(enet_list_end(&channel->incomingReliableCommands)); currentCommand != enet_list_end(&channel->incomingReliableCommands); currentCommand = enet_list_previous(currentCommand)) {
		ENetIncomingCommand* incomingCommand = (ENetIncomingCommand*)currentCommand;

		if (startSequenceNumber >= channel->incomingReliableSequenceNumber) {
			if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
				continue;
		}
		else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
			break;
		}

		if (incomingCommand->reliableSequenceNumber <= startSequenceNumber) {
			if (incomingCommand->reliableSequenceNumber < startSequenceNumber)
				break;

			if ((incomingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK) != ENET_PROTOCOL_COMMAND_SEND_FRAGMENT || totalLength != incomingCommand->packet->dataLength || fragmentCount != incomingCommand->fragmentCount)
			{
				ENET_LOG_ERROR("fragmented packet error");
				return -1;
			}

			startCommand = incomingCommand;

			break;
		}
	}

	if (startCommand == NULL) {
		ENetProtocol hostCommand = *command;
		hostCommand.header.reliableSequenceNumber = startSequenceNumber;
		startCommand = enet_peer_queue_incoming_command(peer, &hostCommand, NULL, totalLength, ENET_PACKET_FLAG_RELIABLE, fragmentCount);

		if (startCommand == NULL)
		{
			ENET_LOG_ERROR("startCommand was NULL");
			return -1;
		}
	}

	if ((startCommand->fragments[fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0) {
		--startCommand->fragmentsRemaining;
		startCommand->fragments[fragmentNumber / 32] |= (1 << (fragmentNumber % 32));

		if (fragmentOffset + fragmentLength > startCommand->packet->dataLength)
			fragmentLength = startCommand->packet->dataLength - fragmentOffset;

		memcpy(startCommand->packet->data + fragmentOffset, (uint8_t*)command + sizeof(ENetProtocolSendFragment), fragmentLength);

		if (startCommand->fragmentsRemaining <= 0)
			enet_peer_dispatch_incoming_reliable_commands(peer, channel);
	}

	return 0;
}

static int enet_protocol_handle_send_unreliable_fragment(ENetHost* host, ENetPeer* peer, const ENetProtocol* command, uint8_t** currentData) {
	uint32_t fragmentNumber, fragmentCount, fragmentOffset, fragmentLength, reliableSequenceNumber, startSequenceNumber, totalLength;
	uint16_t reliableWindow, currentWindow;
	ENetChannel* channel;
	ENetListIterator currentCommand;
	ENetIncomingCommand* startCommand = NULL;

	if (command->header.channelID >= peer->channelCount || (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)) {
		ENET_LOG_ERROR("channel id is greater than the peer's channel count or the peer isn't in connected state and isn't pending disconnection later");
		return -1;
	}

	fragmentLength = ENET_NET_TO_HOST_16(command->sendFragment.dataLength);
	*currentData += fragmentLength;

	if (fragmentLength > host->maximumPacketSize || *currentData < host->receivedData || *currentData > & host->receivedData[host->receivedDataLength]) {
		ENET_LOG_ERROR("fragmented packet error");
		return -1;
	}


	channel = &peer->channels[command->header.channelID];
	reliableSequenceNumber = command->header.reliableSequenceNumber;
	startSequenceNumber = ENET_NET_TO_HOST_16(command->sendFragment.startSequenceNumber);
	reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
	currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

	if (reliableSequenceNumber < channel->incomingReliableSequenceNumber)
		reliableWindow += ENET_PEER_RELIABLE_WINDOWS;

	if (reliableWindow < currentWindow || reliableWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
		return 0;

	if (reliableSequenceNumber == channel->incomingReliableSequenceNumber && startSequenceNumber <= channel->incomingUnreliableSequenceNumber)
		return 0;

	fragmentNumber = ENET_NET_TO_HOST_32(command->sendFragment.fragmentNumber);
	fragmentCount = ENET_NET_TO_HOST_32(command->sendFragment.fragmentCount);
	fragmentOffset = ENET_NET_TO_HOST_32(command->sendFragment.fragmentOffset);
	totalLength = ENET_NET_TO_HOST_32(command->sendFragment.totalLength);

	if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT || fragmentNumber >= fragmentCount || totalLength > host->maximumPacketSize || fragmentOffset >= totalLength || fragmentLength > totalLength - fragmentOffset) {
		ENET_LOG_ERROR("Exceeded maximum number of fragments, the total length is more than the packet size, the offset is out of bounds or the fragment is too big");
		return -1;
	}

	for (currentCommand = enet_list_previous(enet_list_end(&channel->incomingUnreliableCommands)); currentCommand != enet_list_end(&channel->incomingUnreliableCommands); currentCommand = enet_list_previous(currentCommand)) {
		ENetIncomingCommand* incomingCommand = (ENetIncomingCommand*)currentCommand;

		if (reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
			if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
				continue;
		}
		else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
			break;
		}

		if (incomingCommand->reliableSequenceNumber < reliableSequenceNumber)
			break;

		if (incomingCommand->reliableSequenceNumber > reliableSequenceNumber)
			continue;

		if (incomingCommand->unreliableSequenceNumber <= startSequenceNumber) {
			if (incomingCommand->unreliableSequenceNumber < startSequenceNumber)
				break;

			if ((incomingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK) != ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT || totalLength != incomingCommand->packet->dataLength || fragmentCount != incomingCommand->fragmentCount)
			{
				ENET_LOG_ERROR("fragmented packet error");
				return -1;
			}

			startCommand = incomingCommand;

			break;
		}
	}

	if (startCommand == NULL) {
		startCommand = enet_peer_queue_incoming_command(peer, command, NULL, totalLength,
			ENET_PACKET_FLAG_UNRELIABLE_FRAGMENTED, fragmentCount);

		if (startCommand == NULL) {
			ENET_LOG_ERROR("startCommand was NULL");
			return -1;
		}

	}

	if ((startCommand->fragments[fragmentNumber / 32] & (1 << (fragmentNumber % 32))) == 0) {
		--startCommand->fragmentsRemaining;
		startCommand->fragments[fragmentNumber / 32] |= (1 << (fragmentNumber % 32));

		if (fragmentOffset + fragmentLength > startCommand->packet->dataLength)
			fragmentLength = startCommand->packet->dataLength - fragmentOffset;

		memcpy(startCommand->packet->data + fragmentOffset, (uint8_t*)command + sizeof(ENetProtocolSendFragment), fragmentLength);

		if (startCommand->fragmentsRemaining <= 0)
			enet_peer_dispatch_incoming_unreliable_commands(peer, channel);
	}

	return 0;
}

static int enet_protocol_handle_ping(ENetHost* host, ENetPeer* peer, const ENetProtocol* command) {
	if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
		return -1;

	return 0;
}

static int enet_protocol_handle_bandwidth_limit(ENetHost* host, ENetPeer* peer, const ENetProtocol* command) {
	if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
	{
		ENET_LOG_ERROR("Doing jack squat on a peer that is not connected correctly");
		return -1;
	}

	if (peer->incomingBandwidth != 0)
		--host->bandwidthLimitedPeers;

	peer->incomingBandwidth = ENET_NET_TO_HOST_32(command->bandwidthLimit.incomingBandwidth);
	peer->outgoingBandwidth = ENET_NET_TO_HOST_32(command->bandwidthLimit.outgoingBandwidth);

	if (peer->incomingBandwidth != 0)
		++host->bandwidthLimitedPeers;

	if (peer->incomingBandwidth == 0 && host->outgoingBandwidth == 0)
		peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
	else if (peer->incomingBandwidth == 0 || host->outgoingBandwidth == 0)
		peer->windowSize = (ENET_MAX(peer->incomingBandwidth, host->outgoingBandwidth) / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else
		peer->windowSize = (ENET_MIN(peer->incomingBandwidth, host->outgoingBandwidth) / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;

	if (peer->windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
		peer->windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else if (peer->windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
		peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

	return 0;
}

static int enet_protocol_handle_throttle_configure(ENetHost* host, ENetPeer* peer, const ENetProtocol* command) {
	if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
	{
		ENET_LOG_ERROR("Doing jack squat on a peer that is not connected correctly");
		return -1;
	}


	peer->packetThrottleInterval = ENET_NET_TO_HOST_32(command->throttleConfigure.packetThrottleInterval);
	peer->packetThrottleAcceleration = ENET_NET_TO_HOST_32(command->throttleConfigure.packetThrottleAcceleration);
	peer->packetThrottleDeceleration = ENET_NET_TO_HOST_32(command->throttleConfigure.packetThrottleDeceleration);

	return 0;
}

static int enet_protocol_handle_disconnect(ENetHost* host, ENetPeer* peer, const ENetProtocol* command) {
	if (peer->state == ENET_PEER_STATE_DISCONNECTED || peer->state == ENET_PEER_STATE_ZOMBIE || peer->state == ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT)
		return 0;

	enet_peer_reset_queues(peer);

	if (peer->state == ENET_PEER_STATE_CONNECTION_SUCCEEDED || peer->state == ENET_PEER_STATE_DISCONNECTING || peer->state == ENET_PEER_STATE_CONNECTING) {
		enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
	}
	else if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER) {
		if (peer->state == ENET_PEER_STATE_CONNECTION_PENDING)
			host->recalculateBandwidthLimits = 1;

		enet_peer_reset(peer);
	}
	else if (command->header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE) {
		enet_protocol_change_state(host, peer, ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT);
	}
	else {
		enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
	}

	if (peer->state != ENET_PEER_STATE_DISCONNECTED)
		peer->eventData = ENET_NET_TO_HOST_32(command->disconnect.data);

	return 0;
}

static int enet_protocol_handle_acknowledge(ENetHost* host, ENetEvent* event, ENetPeer* peer, const ENetProtocol* command) {
	uint32_t roundTripTime, receivedSentTime, receivedReliableSequenceNumber;
	ENetProtocolCommand commandNumber;

	if (peer->state == ENET_PEER_STATE_DISCONNECTED || peer->state == ENET_PEER_STATE_ZOMBIE)
		return 0;

	receivedSentTime = ENET_NET_TO_HOST_16(command->acknowledge.receivedSentTime);
	receivedSentTime |= host->serviceTime & 0xFFFF0000;

	if ((receivedSentTime & 0x8000) > (host->serviceTime & 0x8000))
		receivedSentTime -= 0x10000;

	if (ENET_TIME_LESS(host->serviceTime, receivedSentTime))
		return 0;

	roundTripTime = ENET_TIME_DIFFERENCE(host->serviceTime, receivedSentTime);

	if (roundTripTime == 0)
		roundTripTime = 1;

	enet_peer_throttle(peer, roundTripTime);

	if (peer->lastReceiveTime > 0) {
		if (roundTripTime >= peer->roundTripTime) {
			uint32_t diff = roundTripTime - peer->roundTripTime;
			peer->roundTripTimeVariance -= peer->roundTripTimeVariance / 4;
			peer->roundTripTimeVariance += diff / 4;
			peer->roundTripTime += diff / 8;
		}
		else {
			uint32_t diff = peer->roundTripTime - roundTripTime;

			if (diff <= peer->roundTripTimeVariance) {
				peer->roundTripTimeVariance -= peer->roundTripTimeVariance / 4;
				peer->roundTripTimeVariance += diff / 4;
			}
			else {
				peer->roundTripTimeVariance -= peer->roundTripTimeVariance / 32;
				peer->roundTripTimeVariance += diff / 32;
			}

			peer->roundTripTime -= diff / 8;
		}
	}
	else {
		peer->roundTripTime = roundTripTime;
		peer->roundTripTimeVariance = roundTripTime / 2;
	}

	if (peer->roundTripTime < peer->lowestRoundTripTime)
		peer->lowestRoundTripTime = peer->roundTripTime;

	if (peer->roundTripTimeVariance > peer->highestRoundTripTimeVariance)
		peer->highestRoundTripTimeVariance = peer->roundTripTimeVariance;

	if (peer->packetThrottleEpoch == 0 || ENET_TIME_DIFFERENCE(host->serviceTime, peer->packetThrottleEpoch) >= peer->packetThrottleInterval) {
		peer->lastRoundTripTime = peer->lowestRoundTripTime;
		peer->lastRoundTripTimeVariance = peer->highestRoundTripTimeVariance;
		peer->lowestRoundTripTime = peer->roundTripTime;
		peer->highestRoundTripTimeVariance = peer->roundTripTimeVariance;
		peer->packetThrottleEpoch = host->serviceTime;
	}

	peer->lastReceiveTime = ENET_MAX(host->serviceTime, 1);
	peer->earliestTimeout = 0;

	receivedReliableSequenceNumber = ENET_NET_TO_HOST_16(command->acknowledge.receivedReliableSequenceNumber);
	commandNumber = enet_protocol_remove_sent_reliable_command(peer, receivedReliableSequenceNumber, command->header.channelID);

	switch (peer->state) {
	case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
		if (commandNumber != ENET_PROTOCOL_COMMAND_VERIFY_CONNECT) {
			ENET_LOG_ERROR("Wrong command number. Got %u vs %u", commandNumber, ENET_PROTOCOL_COMMAND_VERIFY_CONNECT);
			return -1;
		}

		enet_protocol_notify_connect(host, peer, event);

		break;

	case ENET_PEER_STATE_DISCONNECTING:
		if (commandNumber != ENET_PROTOCOL_COMMAND_DISCONNECT)
		{
			ENET_LOG_ERROR("Wrong command number. Got %u vs %u", commandNumber, ENET_PROTOCOL_COMMAND_DISCONNECT);
			return -1;
		}

		enet_protocol_notify_disconnect(host, peer, event);

		break;

	case ENET_PEER_STATE_DISCONNECT_LATER:
		if (enet_list_empty(&peer->outgoingReliableCommands) && enet_list_empty(&peer->outgoingUnreliableCommands) && enet_list_empty(&peer->sentReliableCommands))
			enet_peer_disconnect(peer, peer->eventData);

		break;

	default:
		break;
	}

	return 0;
}

static int enet_protocol_handle_verify_connect(ENetHost* host, ENetEvent* event, ENetPeer* peer, const ENetProtocol* command) {
	uint32_t mtu, windowSize;
	size_t channelCount;

	if (peer->state != ENET_PEER_STATE_CONNECTING)
		return 0;

	channelCount = ENET_NET_TO_HOST_32(command->verifyConnect.channelCount);

	if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT || channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT || ENET_NET_TO_HOST_32(command->verifyConnect.packetThrottleInterval) != peer->packetThrottleInterval || ENET_NET_TO_HOST_32(command->verifyConnect.packetThrottleAcceleration) != peer->packetThrottleAcceleration || ENET_NET_TO_HOST_32(command->verifyConnect.packetThrottleDeceleration) != peer->packetThrottleDeceleration || command->verifyConnect.connectID != peer->connectID) {
		peer->eventData = 0;

		enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);
		ENET_LOG_ERROR("Zombie peer detected");
		return -1;
	}

	enet_protocol_remove_sent_reliable_command(peer, 1, 0xFF);

	if (channelCount < peer->channelCount)
		peer->channelCount = channelCount;

	peer->outgoingPeerID = ENET_NET_TO_HOST_16(command->verifyConnect.outgoingPeerID);
	peer->incomingSessionID = command->verifyConnect.incomingSessionID;
	peer->outgoingSessionID = command->verifyConnect.outgoingSessionID;
	mtu = ENET_NET_TO_HOST_32(command->verifyConnect.mtu);

	if (mtu < ENET_PROTOCOL_MINIMUM_MTU)
		mtu = ENET_PROTOCOL_MINIMUM_MTU;
	else if (mtu > ENET_PROTOCOL_MAXIMUM_MTU)
		mtu = ENET_PROTOCOL_MAXIMUM_MTU;

	if (mtu < peer->mtu)
		peer->mtu = mtu;

	windowSize = ENET_NET_TO_HOST_32(command->verifyConnect.windowSize);

	if (windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
		windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;

	if (windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
		windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

	if (windowSize < peer->windowSize)
		peer->windowSize = windowSize;

	peer->incomingBandwidth = ENET_NET_TO_HOST_32(command->verifyConnect.incomingBandwidth);
	peer->outgoingBandwidth = ENET_NET_TO_HOST_32(command->verifyConnect.outgoingBandwidth);

	enet_protocol_notify_connect(host, peer, event);

	return 0;
}

static int enet_protocol_handle_incoming_commands(ENetHost* host, ENetEvent* event) {
	ENetProtocolHeader* header;
	ENetProtocol* command;
	ENetPeer* peer;
	uint8_t* currentData;
	size_t headerSize;
	uint16_t peerID, flags;
	uint8_t sessionID;

	if (host->receivedDataLength < (size_t) & ((ENetProtocolHeader*)0)->sentTime)
		return 0;

	header = (ENetProtocolHeader*)host->receivedData;
	peerID = ENET_NET_TO_HOST_16(header->peerID);
	sessionID = (peerID & ENET_PROTOCOL_HEADER_SESSION_MASK) >> ENET_PROTOCOL_HEADER_SESSION_SHIFT;
	flags = peerID & ENET_PROTOCOL_HEADER_FLAG_MASK;
	peerID &= ~(ENET_PROTOCOL_HEADER_FLAG_MASK | ENET_PROTOCOL_HEADER_SESSION_MASK);
	headerSize = (flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME ? sizeof(ENetProtocolHeader) : (size_t) & ((ENetProtocolHeader*)0)->sentTime);

	if (host->checksumCallback != NULL)
		headerSize += sizeof(uint32_t);

	if (peerID == ENET_PROTOCOL_MAXIMUM_PEER_ID) {
		peer = NULL;
	}
	else if (peerID >= host->peerCount) {
		return 0;
	}
	else {
		peer = &host->peers[peerID];

		if (peer->state == ENET_PEER_STATE_DISCONNECTED || peer->state == ENET_PEER_STATE_ZOMBIE || ((!enet_in6_equal(host->receivedAddress.ipv6, peer->address.ipv6) || host->receivedAddress.port != peer->address.port) && peer->address.ipv4.ip.s_addr != INADDR_BROADCAST) || (peer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID && sessionID != peer->incomingSessionID))
			return 0;
	}

	if (host->checksumCallback != NULL) {
		uint32_t* checksum = (uint32_t*)&host->receivedData[headerSize - sizeof(uint32_t)];
		uint32_t desiredChecksum = *checksum;
		ENetBuffer buffer;
		*checksum = peer != NULL ? peer->connectID : 0;
		buffer.data = host->receivedData;
		buffer.dataLength = host->receivedDataLength;

		if (host->checksumCallback(&buffer, 1) != desiredChecksum)
			return 0;
	}

	if (peer != NULL) {
		peer->address.ipv6 = host->receivedAddress.ipv6;
		peer->address.port = host->receivedAddress.port;
		peer->incomingDataTotal += host->receivedDataLength;
		peer->totalDataReceived += host->receivedDataLength;
	}

	currentData = host->receivedData + headerSize;

	while (currentData < &host->receivedData[host->receivedDataLength]) {
		uint8_t commandNumber;
		size_t commandSize;
		command = (ENetProtocol*)currentData;

		if (currentData + sizeof(ENetProtocolCommandHeader) > & host->receivedData[host->receivedDataLength])
			break;

		commandNumber = command->header.command & ENET_PROTOCOL_COMMAND_MASK;

		if (commandNumber >= ENET_PROTOCOL_COMMAND_COUNT)
			break;

		commandSize = commandSizes[commandNumber];

		if (commandSize == 0 || currentData + commandSize > & host->receivedData[host->receivedDataLength])
			break;

		currentData += commandSize;

		if (peer == NULL && (commandNumber != ENET_PROTOCOL_COMMAND_CONNECT || currentData < &host->receivedData[host->receivedDataLength]))
			break;

		command->header.reliableSequenceNumber = ENET_NET_TO_HOST_16(command->header.reliableSequenceNumber);

		switch (commandNumber) {
		case ENET_PROTOCOL_COMMAND_ACKNOWLEDGE:
			if (enet_protocol_handle_acknowledge(host, event, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_CONNECT:
			if (peer != NULL)
				goto commandError;

			if (host->preventConnections == 0) {
				peer = enet_protocol_handle_connect(host, header, command);

				if (peer == NULL)
					goto commandError;
			}

			break;

		case ENET_PROTOCOL_COMMAND_VERIFY_CONNECT:
			if (enet_protocol_handle_verify_connect(host, event, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_DISCONNECT:
			if (enet_protocol_handle_disconnect(host, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_PING:
			if (enet_protocol_handle_ping(host, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:
			if (enet_protocol_handle_send_reliable(host, peer, command, &currentData))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE:
			if (enet_protocol_handle_send_unreliable(host, peer, command, &currentData))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED:
			if (enet_protocol_handle_send_unsequenced(host, peer, command, &currentData))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_SEND_FRAGMENT:
			if (enet_protocol_handle_send_fragment(host, peer, command, &currentData))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT:
			if (enet_protocol_handle_bandwidth_limit(host, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE:
			if (enet_protocol_handle_throttle_configure(host, peer, command))
				goto commandError;

			break;

		case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT:
			if (enet_protocol_handle_send_unreliable_fragment(host, peer, command, &currentData))
				goto commandError;

			break;

		default:
			goto commandError;
		}

		if (peer != NULL && (command->header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE) != 0) {
			uint16_t sentTime;

			if (!(flags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME))
				break;

			sentTime = ENET_NET_TO_HOST_16(header->sentTime);

			switch (peer->state) {
			case ENET_PEER_STATE_DISCONNECTING:
			case ENET_PEER_STATE_ACKNOWLEDGING_CONNECT:
			case ENET_PEER_STATE_DISCONNECTED:
			case ENET_PEER_STATE_ZOMBIE:
				break;

			case ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT:
				if ((command->header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_DISCONNECT)
					enet_peer_queue_acknowledgement(peer, command, sentTime);

				break;

			default:
				enet_peer_queue_acknowledgement(peer, command, sentTime);

				break;
			}
		}
	}

commandError:

	if (event != NULL && event->type != ENET_EVENT_TYPE_NONE)
		return 1;

	return 0;
}

static int enet_protocol_receive_incoming_commands(ENetHost* host, ENetEvent* event) {
	int packets;

	for (packets = 0; packets < 256; ++packets) {
		int receivedLength;
		ENetBuffer buffer;
		buffer.data = host->packetData[0];
		buffer.dataLength = host->mtu;
		receivedLength = enet_socket_receive(host->socket, &host->receivedAddress, &buffer, 1);

		if (receivedLength == -2)
			continue;

		if (receivedLength < 0) {
			ENET_LOG_ERROR("received length was negative: %i", receivedLength);
			return -1;
		}

		if (receivedLength == 0)
			return 0;

		host->receivedData = host->packetData[0];
		host->receivedDataLength = receivedLength;
		host->totalReceivedData += receivedLength;
		host->totalReceivedPackets++;

		if (host->interceptCallback != NULL) {
			switch (host->interceptCallback(host, (void*)event)) {
			case 1:
				if (event != NULL && event->type != ENET_EVENT_TYPE_NONE)
					return 1;

				continue;

			case -1:
				ENET_LOG_ERROR("intercept callback failure");
				return -1;

			default:
				break;
			}
		}

		switch (enet_protocol_handle_incoming_commands(host, event)) {
		case 1:
			return 1;

		case -1:
			ENET_LOG_ERROR("enet_protocol_handle_incoming_commands failure");
			return -1;

		default:
			break;
		}
	}

	// Fix as described here: https://github.com/lsalzman/enet/pull/120
	return 0;
}

static void enet_protocol_send_acknowledgements(ENetHost* host, ENetPeer* peer) {
	ENetProtocol* command = &host->commands[host->commandCount];
	ENetBuffer* buffer = &host->buffers[host->bufferCount];
	ENetAcknowledgement* acknowledgement;
	ENetListIterator currentAcknowledgement;
	uint16_t reliableSequenceNumber;
	currentAcknowledgement = enet_list_begin(&peer->acknowledgements);

	while (currentAcknowledgement != enet_list_end(&peer->acknowledgements)) {
		if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)] || buffer >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)] || peer->mtu - host->packetSize < sizeof(ENetProtocolAcknowledge)) {
			host->continueSending = 1;

			break;
		}

		acknowledgement = (ENetAcknowledgement*)currentAcknowledgement;
		currentAcknowledgement = enet_list_next(currentAcknowledgement);
		buffer->data = command;
		buffer->dataLength = sizeof(ENetProtocolAcknowledge);
		host->packetSize += buffer->dataLength;
		reliableSequenceNumber = ENET_HOST_TO_NET_16(acknowledgement->command.header.reliableSequenceNumber);
		command->header.command = ENET_PROTOCOL_COMMAND_ACKNOWLEDGE;
		command->header.channelID = acknowledgement->command.header.channelID;
		command->header.reliableSequenceNumber = reliableSequenceNumber;
		command->acknowledge.receivedReliableSequenceNumber = reliableSequenceNumber;
		command->acknowledge.receivedSentTime = ENET_HOST_TO_NET_16(acknowledgement->sentTime);

		if ((acknowledgement->command.header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_DISCONNECT)
			enet_protocol_dispatch_state(host, peer, ENET_PEER_STATE_ZOMBIE);

		enet_list_remove(&acknowledgement->acknowledgementList);
		enet_free(acknowledgement);

		++command;
		++buffer;
	}

	host->commandCount = command - host->commands;
	host->bufferCount = buffer - host->buffers;
}

static void enet_protocol_send_unreliable_outgoing_commands(ENetHost* host, ENetPeer* peer) {
	ENetProtocol* command = &host->commands[host->commandCount];
	ENetBuffer* buffer = &host->buffers[host->bufferCount];
	ENetOutgoingCommand* outgoingCommand;
	ENetListIterator currentCommand;
	currentCommand = enet_list_begin(&peer->outgoingUnreliableCommands);

	while (currentCommand != enet_list_end(&peer->outgoingUnreliableCommands)) {
		size_t commandSize;
		outgoingCommand = (ENetOutgoingCommand*)currentCommand;
		commandSize = commandSizes[outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK];

		if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)] || buffer + 1 >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)] || peer->mtu - host->packetSize < commandSize || (outgoingCommand->packet != NULL && peer->mtu - host->packetSize < commandSize + outgoingCommand->fragmentLength)) {
			host->continueSending = 1;

			break;
		}

		currentCommand = enet_list_next(currentCommand);

		if (outgoingCommand->packet != NULL && outgoingCommand->fragmentOffset == 0) {
			peer->packetThrottleCounter += ENET_PEER_PACKET_THROTTLE_COUNTER;
			peer->packetThrottleCounter %= ENET_PEER_PACKET_THROTTLE_SCALE;

			if (!(outgoingCommand->packet->flags & (ENET_PACKET_FLAG_CRUCIAL)) && peer->packetThrottleCounter > peer->packetThrottle) {
				uint16_t reliableSequenceNumber = outgoingCommand->reliableSequenceNumber;
				uint16_t unreliableSequenceNumber = outgoingCommand->unreliableSequenceNumber;

				for (;;) {
					--outgoingCommand->packet->referenceCount;

					if (outgoingCommand->packet->referenceCount == 0)
						enet_packet_destroy(outgoingCommand->packet);

					enet_list_remove(&outgoingCommand->outgoingCommandList);
					enet_free(outgoingCommand);

					if (currentCommand == enet_list_end(&peer->outgoingUnreliableCommands))
						break;

					outgoingCommand = (ENetOutgoingCommand*)currentCommand;

					if (outgoingCommand->reliableSequenceNumber != reliableSequenceNumber || outgoingCommand->unreliableSequenceNumber != unreliableSequenceNumber)
						break;

					currentCommand = enet_list_next(currentCommand);
				}

				continue;
			}
		}

		buffer->data = command;
		buffer->dataLength = commandSize;
		host->packetSize += buffer->dataLength;
		*command = outgoingCommand->command;

		enet_list_remove(&outgoingCommand->outgoingCommandList);

		if (outgoingCommand->packet != NULL) {
			++buffer;

			buffer->data = outgoingCommand->packet->data + outgoingCommand->fragmentOffset;
			buffer->dataLength = outgoingCommand->fragmentLength;
			host->packetSize += buffer->dataLength;

			enet_list_insert(enet_list_end(&peer->sentUnreliableCommands), outgoingCommand);
		}
		else {
			enet_free(outgoingCommand);
		}

		++command;
		++buffer;
	}

	host->commandCount = command - host->commands;
	host->bufferCount = buffer - host->buffers;

	if (peer->state == ENET_PEER_STATE_DISCONNECT_LATER && enet_list_empty(&peer->outgoingReliableCommands) && enet_list_empty(&peer->outgoingUnreliableCommands) && enet_list_empty(&peer->sentReliableCommands) && enet_list_empty(&peer->sentUnreliableCommands))
		enet_peer_disconnect(peer, peer->eventData);
}

static int enet_protocol_check_timeouts(ENetHost* host, ENetPeer* peer, ENetEvent* event) {
	ENetOutgoingCommand* outgoingCommand;
	ENetListIterator currentCommand, insertPosition;
	currentCommand = enet_list_begin(&peer->sentReliableCommands);
	insertPosition = enet_list_begin(&peer->outgoingReliableCommands);

	while (currentCommand != enet_list_end(&peer->sentReliableCommands)) {
		outgoingCommand = (ENetOutgoingCommand*)currentCommand;
		currentCommand = enet_list_next(currentCommand);

		if (ENET_TIME_DIFFERENCE(host->serviceTime, outgoingCommand->sentTime) < outgoingCommand->roundTripTimeout)
			continue;

		if (peer->earliestTimeout == 0 || ENET_TIME_LESS(outgoingCommand->sentTime, peer->earliestTimeout))
			peer->earliestTimeout = outgoingCommand->sentTime;

		if (peer->earliestTimeout != 0 && (ENET_TIME_DIFFERENCE(host->serviceTime, peer->earliestTimeout) >= peer->timeoutMaximum || (outgoingCommand->roundTripTimeout >= outgoingCommand->roundTripTimeoutLimit && ENET_TIME_DIFFERENCE(host->serviceTime, peer->earliestTimeout) >= peer->timeoutMinimum))) {
			enet_protocol_notify_disconnect_timeout(host, peer, event);

			return 1;
		}

		if (outgoingCommand->packet != NULL)
			peer->reliableDataInTransit -= outgoingCommand->fragmentLength;

		++peer->packetsLost;
		++peer->totalPacketsLost;
		outgoingCommand->roundTripTimeout = peer->roundTripTime + 4 * peer->roundTripTimeVariance;
		outgoingCommand->roundTripTimeoutLimit = peer->timeoutLimit * outgoingCommand->roundTripTimeout;

		enet_list_insert(insertPosition, enet_list_remove(&outgoingCommand->outgoingCommandList));

		if (currentCommand == enet_list_begin(&peer->sentReliableCommands) && !enet_list_empty(&peer->sentReliableCommands)) {
			outgoingCommand = (ENetOutgoingCommand*)currentCommand;
			peer->nextTimeout = outgoingCommand->sentTime + outgoingCommand->roundTripTimeout;
		}
	}

	return 0;
}

static int enet_protocol_send_reliable_outgoing_commands(ENetHost* host, ENetPeer* peer) {
	ENetProtocol* command = &host->commands[host->commandCount];
	ENetBuffer* buffer = &host->buffers[host->bufferCount];
	ENetOutgoingCommand* outgoingCommand;
	ENetListIterator currentCommand;
	ENetChannel* channel;
	uint16_t reliableWindow;
	size_t commandSize;
	int windowExceeded = 0, windowWrap = 0, canPing = 1;
	currentCommand = enet_list_begin(&peer->outgoingReliableCommands);

	while (currentCommand != enet_list_end(&peer->outgoingReliableCommands)) {
		outgoingCommand = (ENetOutgoingCommand*)currentCommand;
		channel = outgoingCommand->command.header.channelID < peer->channelCount ? &peer->channels[outgoingCommand->command.header.channelID] : NULL;
		reliableWindow = outgoingCommand->reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

		if (channel != NULL) {
			if (!windowWrap && outgoingCommand->sendAttempts < 1 && !(outgoingCommand->reliableSequenceNumber % ENET_PEER_RELIABLE_WINDOW_SIZE) && (channel->reliableWindows[(reliableWindow + ENET_PEER_RELIABLE_WINDOWS - 1) % ENET_PEER_RELIABLE_WINDOWS] >= ENET_PEER_RELIABLE_WINDOW_SIZE || channel->usedReliableWindows & ((((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) << reliableWindow) | (((1 << ENET_PEER_FREE_RELIABLE_WINDOWS) - 1) >> (ENET_PEER_RELIABLE_WINDOWS - reliableWindow)))))
				windowWrap = 1;

			if (windowWrap) {
				currentCommand = enet_list_next(currentCommand);

				continue;
			}
		}

		if (outgoingCommand->packet != NULL) {
			if (!windowExceeded) {
				uint32_t windowSize = (peer->packetThrottle * peer->windowSize) / ENET_PEER_PACKET_THROTTLE_SCALE;

				if (peer->reliableDataInTransit + outgoingCommand->fragmentLength > ENET_MAX(windowSize, peer->mtu))
					windowExceeded = 1;
			}

			if (windowExceeded) {
				currentCommand = enet_list_next(currentCommand);

				continue;
			}
		}

		canPing = 0;
		commandSize = commandSizes[outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK];

		if (command >= &host->commands[sizeof(host->commands) / sizeof(ENetProtocol)] || buffer + 1 >= &host->buffers[sizeof(host->buffers) / sizeof(ENetBuffer)] || peer->mtu - host->packetSize < commandSize || (outgoingCommand->packet != NULL && (uint16_t)(peer->mtu - host->packetSize) < (uint16_t)(commandSize + outgoingCommand->fragmentLength))) {
			host->continueSending = 1;

			break;
		}

		currentCommand = enet_list_next(currentCommand);

		if (channel != NULL && outgoingCommand->sendAttempts < 1) {
			channel->usedReliableWindows |= 1 << reliableWindow;
			++channel->reliableWindows[reliableWindow];
		}

		++outgoingCommand->sendAttempts;

		if (outgoingCommand->roundTripTimeout == 0) {
			outgoingCommand->roundTripTimeout = peer->roundTripTime + 4 * peer->roundTripTimeVariance;
			outgoingCommand->roundTripTimeoutLimit = peer->timeoutLimit * outgoingCommand->roundTripTimeout;
		}

		if (enet_list_empty(&peer->sentReliableCommands))
			peer->nextTimeout = host->serviceTime + outgoingCommand->roundTripTimeout;

		enet_list_insert(enet_list_end(&peer->sentReliableCommands), enet_list_remove(&outgoingCommand->outgoingCommandList));

		outgoingCommand->sentTime = host->serviceTime;
		buffer->data = command;
		buffer->dataLength = commandSize;
		host->packetSize += buffer->dataLength;
		host->headerFlags |= ENET_PROTOCOL_HEADER_FLAG_SENT_TIME;
		*command = outgoingCommand->command;

		if (outgoingCommand->packet != NULL) {
			++buffer;
			buffer->data = outgoingCommand->packet->data + outgoingCommand->fragmentOffset;
			buffer->dataLength = outgoingCommand->fragmentLength;
			host->packetSize += outgoingCommand->fragmentLength;
			peer->reliableDataInTransit += outgoingCommand->fragmentLength;
		}

		++peer->packetsSent;
		++peer->totalPacketsSent;
		++command;
		++buffer;
	}

	host->commandCount = command - host->commands;
	host->bufferCount = buffer - host->buffers;

	return canPing;
}

static int enet_protocol_send_outgoing_commands(ENetHost* host, ENetEvent* event, int checkForTimeouts) {
	uint8_t headerData[sizeof(ENetProtocolHeader) + sizeof(uint32_t)];
	ENetProtocolHeader* header = (ENetProtocolHeader*)headerData;
	ENetPeer* currentPeer;
	int sentLength;
	host->continueSending = 1;

	while (host->continueSending) {
		for (host->continueSending = 0, currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
			if (currentPeer->state == ENET_PEER_STATE_DISCONNECTED || currentPeer->state == ENET_PEER_STATE_ZOMBIE)
				continue;

			host->headerFlags = 0;
			host->commandCount = 0;
			host->bufferCount = 1;
			host->packetSize = sizeof(ENetProtocolHeader);

			if (!enet_list_empty(&currentPeer->acknowledgements))
				enet_protocol_send_acknowledgements(host, currentPeer);

			if (checkForTimeouts != 0 && !enet_list_empty(&currentPeer->sentReliableCommands) && ENET_TIME_GREATER_EQUAL(host->serviceTime, currentPeer->nextTimeout) && enet_protocol_check_timeouts(host, currentPeer, event) == 1) {
				if (event != NULL && event->type != ENET_EVENT_TYPE_NONE)
					return 1;
				else
					continue;
			}

			if ((enet_list_empty(&currentPeer->outgoingReliableCommands) || enet_protocol_send_reliable_outgoing_commands(host, currentPeer)) && enet_list_empty(&currentPeer->sentReliableCommands) && ENET_TIME_DIFFERENCE(host->serviceTime, currentPeer->lastReceiveTime) >= currentPeer->pingInterval && currentPeer->mtu - host->packetSize >= sizeof(ENetProtocolPing)) {
				enet_peer_ping(currentPeer);
				enet_protocol_send_reliable_outgoing_commands(host, currentPeer);
			}

			if (!enet_list_empty(&currentPeer->outgoingUnreliableCommands))
				enet_protocol_send_unreliable_outgoing_commands(host, currentPeer);

			if (host->commandCount == 0)
				continue;

			if (currentPeer->packetLossEpoch == 0) {
				currentPeer->packetLossEpoch = host->serviceTime;
			}
			else if (ENET_TIME_DIFFERENCE(host->serviceTime, currentPeer->packetLossEpoch) >= ENET_PEER_PACKET_LOSS_INTERVAL && currentPeer->packetsSent > 0) {
				uint32_t packetLoss = currentPeer->packetsLost * ENET_PEER_PACKET_LOSS_SCALE / currentPeer->packetsSent;

				ENET_LOG_TRACE(
					"Peer %u: %3.3f%% (+-%3.3f%%) pkt loss, %u ms RTT (+-%u ms Jitter), %3.2f%% Throttle, rel. list sizes: %u/%u out, %u/%u in", currentPeer->incomingPeerID,
					(currentPeer->packetLoss / (float)ENET_PEER_PACKET_LOSS_SCALE) * 100,
					(currentPeer->packetLossVariance / (float)ENET_PEER_PACKET_LOSS_SCALE) * 100, currentPeer->roundTripTime, currentPeer->roundTripTimeVariance,
					(currentPeer->packetThrottle / (float)ENET_PEER_PACKET_THROTTLE_SCALE) * 100,
					enet_list_size(&currentPeer->outgoingReliableCommands),
					enet_list_size(&currentPeer->outgoingUnreliableCommands),
					currentPeer->channels != NULL ? enet_list_size(&currentPeer->channels->incomingReliableCommands) : 0,
					currentPeer->channels != NULL ? enet_list_size(&currentPeer->channels->incomingUnreliableCommands) : 0
				);

				currentPeer->packetLossVariance -= currentPeer->packetLossVariance / 4;

				if (packetLoss >= currentPeer->packetLoss) {
					currentPeer->packetLoss += (packetLoss - currentPeer->packetLoss) / 8;
					currentPeer->packetLossVariance += (packetLoss - currentPeer->packetLoss) / 4;
				}
				else {
					currentPeer->packetLoss -= (currentPeer->packetLoss - packetLoss) / 8;
					currentPeer->packetLossVariance += (currentPeer->packetLoss - packetLoss) / 4;
				}

				currentPeer->packetLossEpoch = host->serviceTime;
				currentPeer->packetsSent = 0;
				currentPeer->packetsLost = 0;
			}

			host->buffers->data = headerData;

			if (host->headerFlags & ENET_PROTOCOL_HEADER_FLAG_SENT_TIME) {
				header->sentTime = ENET_HOST_TO_NET_16(host->serviceTime & 0xFFFF);
				host->buffers->dataLength = sizeof(ENetProtocolHeader);
			}
			else {
				host->buffers->dataLength = (size_t) & ((ENetProtocolHeader*)0)->sentTime;
			}

			if (currentPeer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID)
				host->headerFlags |= currentPeer->outgoingSessionID << ENET_PROTOCOL_HEADER_SESSION_SHIFT;

			header->peerID = ENET_HOST_TO_NET_16(currentPeer->outgoingPeerID | host->headerFlags);

			if (host->checksumCallback != NULL) {
				uint32_t* checksum = (uint32_t*)&headerData[host->buffers->dataLength];
				*checksum = currentPeer->outgoingPeerID < ENET_PROTOCOL_MAXIMUM_PEER_ID ? currentPeer->connectID : 0;
				host->buffers->dataLength += sizeof(uint32_t);
				*checksum = host->checksumCallback(host->buffers, host->bufferCount);
			}

			currentPeer->lastSendTime = host->serviceTime;
			sentLength = enet_socket_send(host->socket, &currentPeer->address, host->buffers, host->bufferCount);

			enet_protocol_remove_sent_unreliable_commands(currentPeer);

			if (sentLength < 0) {
				ENET_LOG_ERROR("sentLength was negative: %i", sentLength);
				return -1;
			}


			host->totalSentData += sentLength;
			currentPeer->totalDataSent += sentLength;
			host->totalSentPackets++;
		}
	}

	return 0;
}

void enet_host_flush(ENetHost* host) {
	host->serviceTime = enet_time_get();

	enet_protocol_send_outgoing_commands(host, NULL, 0);
}

int enet_host_check_events(ENetHost* host, ENetEvent* event) {
	if (event == NULL)
		return -1;

	event->type = ENET_EVENT_TYPE_NONE;
	event->peer = NULL;
	event->packet = NULL;

	return enet_protocol_dispatch_incoming_commands(host, event);
}

int enet_host_service(ENetHost* host, ENetEvent* event, uint32_t timeout) {
	uint32_t waitCondition;

	if (event != NULL) {
		event->type = ENET_EVENT_TYPE_NONE;
		event->peer = NULL;
		event->packet = NULL;

		switch (enet_protocol_dispatch_incoming_commands(host, event)) {
		case 1:
			return 1;

		case -1:
			ENET_LOG_ERROR("Error dispatching incoming packets!");
			return -1;

		default:
			break;
		}
	}

	host->serviceTime = enet_time_get();
	timeout += host->serviceTime;

	do {
		if (ENET_TIME_DIFFERENCE(host->serviceTime, host->bandwidthThrottleEpoch) >= ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL)
			enet_host_bandwidth_throttle(host);

		switch (enet_protocol_send_outgoing_commands(host, event, 1)) {
		case 1:
			return 1;

		case -1:
			ENET_LOG_ERROR("Error sending outgoing packets!");
			return -1;

		default:
			break;
		}

		switch (enet_protocol_receive_incoming_commands(host, event)) {
		case 1:
			return 1;

		case -1:
			ENET_LOG_ERROR("Error receiving incoming packets!");
			return -1;

		default:
			break;
		}

		switch (enet_protocol_send_outgoing_commands(host, event, 1)) {
		case 1:
			return 1;

		case -1:
			ENET_LOG_ERROR("Error dispatching outgoing packets!");
			return -1;

		default:
			break;
		}

		if (event != NULL) {
			switch (enet_protocol_dispatch_incoming_commands(host, event)) {
			case 1:
				return 1;

			case -1:
				ENET_LOG_ERROR("Error dispatching incoming packets!");
				return -1;

			default:
				break;
			}
		}

		if (ENET_TIME_GREATER_EQUAL(host->serviceTime, timeout))
			return 0;

		do {
			host->serviceTime = enet_time_get();

			if (ENET_TIME_GREATER_EQUAL(host->serviceTime, timeout))
				return 0;

			waitCondition = ENET_SOCKET_WAIT_RECEIVE | ENET_SOCKET_WAIT_INTERRUPT;

			if (enet_socket_wait(host->socket, &waitCondition, ENET_TIME_DIFFERENCE(timeout, host->serviceTime)) != 0)
				return -1;
		}

		while (waitCondition & ENET_SOCKET_WAIT_INTERRUPT);

		host->serviceTime = enet_time_get();
	}

	while (waitCondition & ENET_SOCKET_WAIT_RECEIVE);

	return 0;
}

/*
=======================================================================
	Peer
=======================================================================
*/

void enet_peer_throttle_configure(ENetPeer* peer, uint32_t interval, uint32_t acceleration, uint32_t deceleration, uint32_t threshold) {
	ENetProtocol command;
	peer->packetThrottleThreshold = threshold;
	peer->packetThrottleInterval = interval;
	peer->packetThrottleAcceleration = acceleration;
	peer->packetThrottleDeceleration = deceleration;
	command.header.command = ENET_PROTOCOL_COMMAND_THROTTLE_CONFIGURE | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
	command.header.channelID = 0xFF;
	command.throttleConfigure.packetThrottleInterval = ENET_HOST_TO_NET_32(interval);
	command.throttleConfigure.packetThrottleAcceleration = ENET_HOST_TO_NET_32(acceleration);
	command.throttleConfigure.packetThrottleDeceleration = ENET_HOST_TO_NET_32(deceleration);

	enet_peer_queue_outgoing_command(peer, &command, NULL, 0, 0);
}

int enet_peer_throttle(ENetPeer* peer, uint32_t rtt) {
	if (peer->lastRoundTripTime <= peer->lastRoundTripTimeVariance) {
		peer->packetThrottle = peer->packetThrottleLimit;
	}
	else if (rtt < peer->lastRoundTripTime) {
		peer->packetThrottle += peer->packetThrottleAcceleration;

		if (peer->packetThrottle > peer->packetThrottleLimit)
			peer->packetThrottle = peer->packetThrottleLimit;

		return 1;
	}
	else if (rtt > peer->lastRoundTripTime + peer->packetThrottleThreshold + 2 * peer->lastRoundTripTimeVariance) {
		if (peer->packetThrottle > peer->packetThrottleDeceleration)
			peer->packetThrottle -= peer->packetThrottleDeceleration;
		else
			peer->packetThrottle = 0;

		return -1;
	}

	return 0;
}

int enet_peer_send(ENetPeer* peer, uint8_t channelID, ENetPacket* packet) {
	ENetChannel* channel = &peer->channels[channelID];
	ENetProtocol command;
	size_t fragmentLength;

	if (peer->state != ENET_PEER_STATE_CONNECTED || channelID >= peer->channelCount || packet->dataLength > peer->host->maximumPacketSize) {
		ENET_LOG_ERROR("Cannot send data. Peer is not connected, the channel id is above the maximum channels supported or the packet data length is above the maximum packet size\n");
		return -1;
	}


	fragmentLength = peer->mtu - sizeof(ENetProtocolHeader) - sizeof(ENetProtocolSendFragment);

	if (peer->host->checksumCallback != NULL)
		fragmentLength -= sizeof(uint32_t);

	if (packet->dataLength > fragmentLength) {
		uint32_t fragmentCount = (packet->dataLength + fragmentLength - 1) / fragmentLength, fragmentNumber, fragmentOffset;
		uint8_t commandNumber;
		uint16_t startSequenceNumber;
		ENetList fragments;
		ENetOutgoingCommand* fragment;

		if (fragmentCount > ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT) {
			ENET_LOG_ERROR("Cannot send data. Too many fragments (%u vs %u)\n", fragmentCount, ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT);
			return -1;
		}


		if ((packet->flags & (ENET_PACKET_FLAG_RELIABLE | ENET_PACKET_FLAG_UNRELIABLE_FRAGMENTED)) == ENET_PACKET_FLAG_UNRELIABLE_FRAGMENTED && channel->outgoingUnreliableSequenceNumber < 0xFFFF) {
			commandNumber = ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT;
			startSequenceNumber = ENET_HOST_TO_NET_16(channel->outgoingUnreliableSequenceNumber + 1);
		}
		else {
			commandNumber = ENET_PROTOCOL_COMMAND_SEND_FRAGMENT | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
			startSequenceNumber = ENET_HOST_TO_NET_16(channel->outgoingReliableSequenceNumber + 1);
		}

		enet_list_clear(&fragments);

		for (fragmentNumber = 0, fragmentOffset = 0; fragmentOffset < packet->dataLength; ++fragmentNumber, fragmentOffset += fragmentLength) {
			if (packet->dataLength - fragmentOffset < fragmentLength)
				fragmentLength = packet->dataLength - fragmentOffset;

			fragment = (ENetOutgoingCommand*)enet_malloc(sizeof(ENetOutgoingCommand));

			if (fragment == NULL) {
				while (!enet_list_empty(&fragments)) {
					fragment = (ENetOutgoingCommand*)enet_list_remove(enet_list_begin(&fragments));

					enet_free(fragment);
				}

				ENET_LOG_ERROR("Cannot send data. A fragment was null.");
				return -1;
			}

			fragment->fragmentOffset = fragmentOffset;
			fragment->fragmentLength = fragmentLength;
			fragment->packet = packet;
			fragment->command.header.command = commandNumber;
			fragment->command.header.channelID = channelID;
			fragment->command.sendFragment.startSequenceNumber = startSequenceNumber;
			fragment->command.sendFragment.dataLength = ENET_HOST_TO_NET_16(fragmentLength);
			fragment->command.sendFragment.fragmentCount = ENET_HOST_TO_NET_32(fragmentCount);
			fragment->command.sendFragment.fragmentNumber = ENET_HOST_TO_NET_32(fragmentNumber);
			fragment->command.sendFragment.totalLength = ENET_HOST_TO_NET_32(packet->dataLength);
			fragment->command.sendFragment.fragmentOffset = ENET_NET_TO_HOST_32(fragmentOffset);

			enet_list_insert(enet_list_end(&fragments), fragment);
		}

		packet->referenceCount += fragmentNumber;

		while (!enet_list_empty(&fragments)) {
			fragment = (ENetOutgoingCommand*)enet_list_remove(enet_list_begin(&fragments));

			enet_peer_setup_outgoing_command(peer, fragment);
		}

		return 0;
	}

	command.header.channelID = channelID;

	if ((packet->flags & (ENET_PACKET_FLAG_RELIABLE | ENET_PACKET_FLAG_UNSEQUENCED)) == ENET_PACKET_FLAG_UNSEQUENCED) {
		command.header.command = ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED | ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED;
		command.sendUnsequenced.dataLength = ENET_HOST_TO_NET_16(packet->dataLength);
	}
	else if (packet->flags & ENET_PACKET_FLAG_RELIABLE || channel->outgoingUnreliableSequenceNumber >= 0xFFFF) {
		command.header.command = ENET_PROTOCOL_COMMAND_SEND_RELIABLE | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
		command.sendReliable.dataLength = ENET_HOST_TO_NET_16(packet->dataLength);
	}
	else {
		command.header.command = ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE;
		command.sendUnreliable.dataLength = ENET_HOST_TO_NET_16(packet->dataLength);
	}

	if (enet_peer_queue_outgoing_command(peer, &command, packet, 0, packet->dataLength) == NULL) {
		ENET_LOG_ERROR("A queued outgoing command was NULL\n");
		return -1;
	}


	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		enet_host_flush(peer->host);

	return 0;
}

ENetPacket* enet_peer_receive(ENetPeer* peer, uint8_t* channelID) {
	ENetIncomingCommand* incomingCommand;
	ENetPacket* packet;

	if (enet_list_empty(&peer->dispatchedCommands))
		return NULL;

	incomingCommand = (ENetIncomingCommand*)enet_list_remove(enet_list_begin(&peer->dispatchedCommands));

	if (channelID != NULL)
		*channelID = incomingCommand->command.header.channelID;

	packet = incomingCommand->packet;
	--packet->referenceCount;

	if (incomingCommand->fragments != NULL)
		enet_free(incomingCommand->fragments);

	enet_free(incomingCommand);

	peer->totalWaitingData -= packet->dataLength;

	return packet;
}

static void enet_peer_reset_outgoing_commands(ENetList* queue) {
	ENetOutgoingCommand* outgoingCommand;

	while (!enet_list_empty(queue)) {
		outgoingCommand = (ENetOutgoingCommand*)enet_list_remove(enet_list_begin(queue));

		if (outgoingCommand->packet != NULL) {
			--outgoingCommand->packet->referenceCount;

			if (outgoingCommand->packet->referenceCount == 0)
				enet_packet_destroy(outgoingCommand->packet);
		}

		enet_free(outgoingCommand);
	}
}

static void enet_peer_remove_incoming_commands(ENetList* queue, ENetListIterator startCommand, ENetListIterator endCommand) {
	ENetListIterator currentCommand;

	for (currentCommand = startCommand; currentCommand != endCommand;) {
		ENetIncomingCommand* incomingCommand = (ENetIncomingCommand*)currentCommand;
		currentCommand = enet_list_next(currentCommand);

		enet_list_remove(&incomingCommand->incomingCommandList);

		if (incomingCommand->packet != NULL) {
			--incomingCommand->packet->referenceCount;

			if (incomingCommand->packet->referenceCount == 0)
				enet_packet_destroy(incomingCommand->packet);
		}

		if (incomingCommand->fragments != NULL)
			enet_free(incomingCommand->fragments);

		enet_free(incomingCommand);
	}
}

static void enet_peer_reset_incoming_commands(ENetList* queue) {
	enet_peer_remove_incoming_commands(queue, enet_list_begin(queue), enet_list_end(queue));
}

void enet_peer_reset_queues(ENetPeer* peer) {
	ENetChannel* channel;

	if (peer->needsDispatch) {
		enet_list_remove(&peer->dispatchList);

		peer->needsDispatch = 0;
	}

	while (!enet_list_empty(&peer->acknowledgements)) {
		enet_free(enet_list_remove(enet_list_begin(&peer->acknowledgements)));
	}

	enet_peer_reset_outgoing_commands(&peer->sentReliableCommands);
	enet_peer_reset_outgoing_commands(&peer->sentUnreliableCommands);
	enet_peer_reset_outgoing_commands(&peer->outgoingReliableCommands);
	enet_peer_reset_outgoing_commands(&peer->outgoingUnreliableCommands);
	enet_peer_reset_incoming_commands(&peer->dispatchedCommands);

	if (peer->channels != NULL && peer->channelCount > 0) {
		for (channel = peer->channels; channel < &peer->channels[peer->channelCount]; ++channel) {
			enet_peer_reset_incoming_commands(&channel->incomingReliableCommands);
			enet_peer_reset_incoming_commands(&channel->incomingUnreliableCommands);
		}

		enet_free(peer->channels);
	}

	peer->channels = NULL;
	peer->channelCount = 0;
}

void enet_peer_on_connect(ENetPeer* peer) {
	if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER) {
		if (peer->incomingBandwidth != 0)
			++peer->host->bandwidthLimitedPeers;

		++peer->host->connectedPeers;
	}
}

void enet_peer_on_disconnect(ENetPeer* peer) {
	if (peer->state == ENET_PEER_STATE_CONNECTED || peer->state == ENET_PEER_STATE_DISCONNECT_LATER) {
		if (peer->incomingBandwidth != 0)
			--peer->host->bandwidthLimitedPeers;

		--peer->host->connectedPeers;
	}
}

void enet_peer_reset(ENetPeer* peer) {
	enet_peer_on_disconnect(peer);

	peer->outgoingPeerID = ENET_PROTOCOL_MAXIMUM_PEER_ID;
	peer->state = ENET_PEER_STATE_DISCONNECTED;
	peer->incomingBandwidth = 0;
	peer->outgoingBandwidth = 0;
	peer->incomingBandwidthThrottleEpoch = 0;
	peer->outgoingBandwidthThrottleEpoch = 0;
	peer->incomingDataTotal = 0;
	peer->totalDataReceived = 0;
	peer->outgoingDataTotal = 0;
	peer->totalDataSent = 0;
	peer->lastSendTime = 0;
	peer->lastReceiveTime = 0;
	peer->nextTimeout = 0;
	peer->earliestTimeout = 0;
	peer->packetLossEpoch = 0;
	peer->packetsSent = 0;
	peer->totalPacketsSent = 0;
	peer->packetsLost = 0;
	peer->totalPacketsLost = 0;
	peer->packetLoss = 0;
	peer->packetLossVariance = 0;
	peer->packetThrottle = ENET_PEER_DEFAULT_PACKET_THROTTLE;
	peer->packetThrottleThreshold = ENET_PEER_PACKET_THROTTLE_THRESHOLD;
	peer->packetThrottleLimit = ENET_PEER_PACKET_THROTTLE_SCALE;
	peer->packetThrottleCounter = 0;
	peer->packetThrottleEpoch = 0;
	peer->packetThrottleAcceleration = ENET_PEER_PACKET_THROTTLE_ACCELERATION;
	peer->packetThrottleDeceleration = ENET_PEER_PACKET_THROTTLE_DECELERATION;
	peer->packetThrottleInterval = ENET_PEER_PACKET_THROTTLE_INTERVAL;
	peer->pingInterval = ENET_PEER_PING_INTERVAL;
	peer->timeoutLimit = ENET_PEER_TIMEOUT_LIMIT;
	peer->timeoutMinimum = ENET_PEER_TIMEOUT_MINIMUM;
	peer->timeoutMaximum = ENET_PEER_TIMEOUT_MAXIMUM;
	peer->lastRoundTripTime = ENET_PEER_DEFAULT_ROUND_TRIP_TIME;
	peer->lowestRoundTripTime = ENET_PEER_DEFAULT_ROUND_TRIP_TIME;
	peer->lastRoundTripTimeVariance = 0;
	peer->highestRoundTripTimeVariance = 0;
	peer->roundTripTime = 1;
	peer->roundTripTimeVariance = 0;
	peer->mtu = peer->host->mtu;
	peer->reliableDataInTransit = 0;
	peer->outgoingReliableSequenceNumber = 0;
	peer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
	peer->incomingUnsequencedGroup = 0;
	peer->outgoingUnsequencedGroup = 0;
	peer->eventData = 0;
	peer->totalWaitingData = 0;

	memset(peer->unsequencedWindow, 0, sizeof(peer->unsequencedWindow));

	enet_peer_reset_queues(peer);
}

void enet_peer_ping(ENetPeer* peer) {
	ENetProtocol command;

	if (peer->state != ENET_PEER_STATE_CONNECTED)
		return;

	command.header.command = ENET_PROTOCOL_COMMAND_PING | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
	command.header.channelID = 0xFF;

	enet_peer_queue_outgoing_command(peer, &command, NULL, 0, 0);
}

void enet_peer_ping_interval(ENetPeer* peer, uint32_t pingInterval) {
	peer->pingInterval = pingInterval ? pingInterval : ENET_PEER_PING_INTERVAL;
}

void enet_peer_timeout(ENetPeer* peer, uint32_t timeoutLimit, uint32_t timeoutMinimum, uint32_t timeoutMaximum) {
	peer->timeoutLimit = timeoutLimit ? timeoutLimit : ENET_PEER_TIMEOUT_LIMIT;
	peer->timeoutMinimum = timeoutMinimum ? timeoutMinimum : ENET_PEER_TIMEOUT_MINIMUM;
	peer->timeoutMaximum = timeoutMaximum ? timeoutMaximum : ENET_PEER_TIMEOUT_MAXIMUM;
}

void enet_peer_disconnect_now(ENetPeer* peer, uint32_t data) {
	ENetProtocol command;

	if (peer->state == ENET_PEER_STATE_DISCONNECTED)
		return;

	if (peer->state != ENET_PEER_STATE_ZOMBIE && peer->state != ENET_PEER_STATE_DISCONNECTING) {
		enet_peer_reset_queues(peer);

		command.header.command = ENET_PROTOCOL_COMMAND_DISCONNECT | ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED;
		command.header.channelID = 0xFF;
		command.disconnect.data = ENET_HOST_TO_NET_32(data);

		enet_peer_queue_outgoing_command(peer, &command, NULL, 0, 0);
		enet_host_flush(peer->host);
	}

	enet_peer_reset(peer);
}

void enet_peer_disconnect(ENetPeer* peer, uint32_t data) {
	ENetProtocol command;

	if (peer->state == ENET_PEER_STATE_DISCONNECTING || peer->state == ENET_PEER_STATE_DISCONNECTED || peer->state == ENET_PEER_STATE_ACKNOWLEDGING_DISCONNECT || peer->state == ENET_PEER_STATE_ZOMBIE)
		return;

	enet_peer_reset_queues(peer);

	command.header.command = ENET_PROTOCOL_COMMAND_DISCONNECT;
	command.header.channelID = 0xFF;
	command.disconnect.data = ENET_HOST_TO_NET_32(data);

	if (peer->state == ENET_PEER_STATE_CONNECTED || peer->state == ENET_PEER_STATE_DISCONNECT_LATER)
		command.header.command |= ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
	else
		command.header.command |= ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED;

	enet_peer_queue_outgoing_command(peer, &command, NULL, 0, 0);

	if (peer->state == ENET_PEER_STATE_CONNECTED || peer->state == ENET_PEER_STATE_DISCONNECT_LATER) {
		enet_peer_on_disconnect(peer);

		peer->state = ENET_PEER_STATE_DISCONNECTING;
	}
	else {
		enet_host_flush(peer->host);
		enet_peer_reset(peer);
	}
}

void enet_peer_disconnect_later(ENetPeer* peer, uint32_t data) {
	if ((peer->state == ENET_PEER_STATE_CONNECTED || peer->state == ENET_PEER_STATE_DISCONNECT_LATER) && !(enet_list_empty(&peer->outgoingReliableCommands) && enet_list_empty(&peer->outgoingUnreliableCommands) && enet_list_empty(&peer->sentReliableCommands))) {
		peer->state = ENET_PEER_STATE_DISCONNECT_LATER;
		peer->eventData = data;
	}
	else {
		enet_peer_disconnect(peer, data);
	}
}

ENetAcknowledgement* enet_peer_queue_acknowledgement(ENetPeer* peer, const ENetProtocol* command, uint16_t sentTime) {
	ENetAcknowledgement* acknowledgement;

	if (command->header.channelID < peer->channelCount) {
		ENetChannel* channel = &peer->channels[command->header.channelID];
		uint16_t reliableWindow = command->header.reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
		uint16_t currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

		if (command->header.reliableSequenceNumber < channel->incomingReliableSequenceNumber)
			reliableWindow += ENET_PEER_RELIABLE_WINDOWS;

		if (reliableWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1 && reliableWindow <= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS)
			return NULL;
	}

	acknowledgement = (ENetAcknowledgement*)enet_malloc(sizeof(ENetAcknowledgement));

	if (acknowledgement == NULL)
		return NULL;

	peer->outgoingDataTotal += sizeof(ENetProtocolAcknowledge);
	acknowledgement->sentTime = sentTime;
	acknowledgement->command = *command;

	enet_list_insert(enet_list_end(&peer->acknowledgements), acknowledgement);

	return acknowledgement;
}

void enet_peer_setup_outgoing_command(ENetPeer* peer, ENetOutgoingCommand* outgoingCommand) {
	ENetChannel* channel = &peer->channels[outgoingCommand->command.header.channelID];
	peer->outgoingDataTotal += enet_protocol_command_size(outgoingCommand->command.header.command) + outgoingCommand->fragmentLength;

	if (outgoingCommand->command.header.channelID == 0xFF) {
		++peer->outgoingReliableSequenceNumber;
		outgoingCommand->reliableSequenceNumber = peer->outgoingReliableSequenceNumber;
		outgoingCommand->unreliableSequenceNumber = 0;
	}
	else if (outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE) {
		++channel->outgoingReliableSequenceNumber;
		channel->outgoingUnreliableSequenceNumber = 0;
		outgoingCommand->reliableSequenceNumber = channel->outgoingReliableSequenceNumber;
		outgoingCommand->unreliableSequenceNumber = 0;
	}
	else if (outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_FLAG_UNSEQUENCED) {
		++peer->outgoingUnsequencedGroup;
		outgoingCommand->reliableSequenceNumber = 0;
		outgoingCommand->unreliableSequenceNumber = 0;
	}
	else {
		if (outgoingCommand->fragmentOffset == 0)
			++channel->outgoingUnreliableSequenceNumber;

		outgoingCommand->reliableSequenceNumber = channel->outgoingReliableSequenceNumber;
		outgoingCommand->unreliableSequenceNumber = channel->outgoingUnreliableSequenceNumber;
	}

	outgoingCommand->sendAttempts = 0;
	outgoingCommand->sentTime = 0;
	outgoingCommand->roundTripTimeout = 0;
	outgoingCommand->roundTripTimeoutLimit = 0;
	outgoingCommand->command.header.reliableSequenceNumber = ENET_HOST_TO_NET_16(outgoingCommand->reliableSequenceNumber);

	switch (outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK) {
	case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE:
		outgoingCommand->command.sendUnreliable.unreliableSequenceNumber = ENET_HOST_TO_NET_16(outgoingCommand->unreliableSequenceNumber);

		break;

	case ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED:
		outgoingCommand->command.sendUnsequenced.unsequencedGroup = ENET_HOST_TO_NET_16(peer->outgoingUnsequencedGroup);

		break;

	default:
		break;
	}

	if (outgoingCommand->command.header.command & ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE)
		enet_list_insert(enet_list_end(&peer->outgoingReliableCommands), outgoingCommand);
	else
		enet_list_insert(enet_list_end(&peer->outgoingUnreliableCommands), outgoingCommand);
}

ENetOutgoingCommand* enet_peer_queue_outgoing_command(ENetPeer* peer, const ENetProtocol* command, ENetPacket* packet, uint32_t offset, uint16_t length) {
	ENetOutgoingCommand* outgoingCommand = (ENetOutgoingCommand*)enet_malloc(sizeof(ENetOutgoingCommand));

	if (outgoingCommand == NULL)
		return NULL;

	outgoingCommand->command = *command;
	outgoingCommand->fragmentOffset = offset;
	outgoingCommand->fragmentLength = length;
	outgoingCommand->packet = packet;

	if (packet != NULL)
		++packet->referenceCount;

	enet_peer_setup_outgoing_command(peer, outgoingCommand);

	return outgoingCommand;
}

void enet_peer_dispatch_incoming_unreliable_commands(ENetPeer* peer, ENetChannel* channel) {
	ENetListIterator droppedCommand, startCommand, currentCommand;

	for (droppedCommand = startCommand = currentCommand = enet_list_begin(&channel->incomingUnreliableCommands); currentCommand != enet_list_end(&channel->incomingUnreliableCommands); currentCommand = enet_list_next(currentCommand)) {
		ENetIncomingCommand* incomingCommand = (ENetIncomingCommand*)currentCommand;

		if ((incomingCommand->command.header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED)
			continue;

		if (incomingCommand->reliableSequenceNumber == channel->incomingReliableSequenceNumber) {
			if (incomingCommand->fragmentsRemaining <= 0) {
				channel->incomingUnreliableSequenceNumber = incomingCommand->unreliableSequenceNumber;

				continue;
			}

			if (startCommand != currentCommand) {
				enet_list_move(enet_list_end(&peer->dispatchedCommands), startCommand, enet_list_previous(currentCommand));

				if (!peer->needsDispatch) {
					enet_list_insert(enet_list_end(&peer->host->dispatchQueue), &peer->dispatchList);

					peer->needsDispatch = 1;
				}

				droppedCommand = currentCommand;
			}
			else if (droppedCommand != currentCommand) {
				droppedCommand = enet_list_previous(currentCommand);
			}
		}
		else {
			uint16_t reliableWindow = incomingCommand->reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
			uint16_t currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

			if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
				reliableWindow += ENET_PEER_RELIABLE_WINDOWS;

			if (reliableWindow >= currentWindow && reliableWindow < currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
				break;

			droppedCommand = enet_list_next(currentCommand);

			if (startCommand != currentCommand) {
				enet_list_move(enet_list_end(&peer->dispatchedCommands), startCommand, enet_list_previous(currentCommand));

				if (!peer->needsDispatch) {
					enet_list_insert(enet_list_end(&peer->host->dispatchQueue), &peer->dispatchList);

					peer->needsDispatch = 1;
				}
			}
		}

		startCommand = enet_list_next(currentCommand);
	}

	if (startCommand != currentCommand) {
		enet_list_move(enet_list_end(&peer->dispatchedCommands), startCommand, enet_list_previous(currentCommand));

		if (!peer->needsDispatch) {
			enet_list_insert(enet_list_end(&peer->host->dispatchQueue), &peer->dispatchList);

			peer->needsDispatch = 1;
		}

		droppedCommand = currentCommand;
	}

	enet_peer_remove_incoming_commands(&channel->incomingUnreliableCommands, enet_list_begin(&channel->incomingUnreliableCommands), droppedCommand);
}

void enet_peer_dispatch_incoming_reliable_commands(ENetPeer* peer, ENetChannel* channel) {
	ENetListIterator currentCommand;

	for (currentCommand = enet_list_begin(&channel->incomingReliableCommands); currentCommand != enet_list_end(&channel->incomingReliableCommands); currentCommand = enet_list_next(currentCommand)) {
		ENetIncomingCommand* incomingCommand = (ENetIncomingCommand*)currentCommand;

		if (incomingCommand->fragmentsRemaining > 0 || incomingCommand->reliableSequenceNumber != (uint16_t)(channel->incomingReliableSequenceNumber + 1))
			break;

		channel->incomingReliableSequenceNumber = incomingCommand->reliableSequenceNumber;

		if (incomingCommand->fragmentCount > 0)
			channel->incomingReliableSequenceNumber += incomingCommand->fragmentCount - 1;
	}

	if (currentCommand == enet_list_begin(&channel->incomingReliableCommands))
		return;

	channel->incomingUnreliableSequenceNumber = 0;

	enet_list_move(enet_list_end(&peer->dispatchedCommands), enet_list_begin(&channel->incomingReliableCommands), enet_list_previous(currentCommand));

	if (!peer->needsDispatch) {
		enet_list_insert(enet_list_end(&peer->host->dispatchQueue), &peer->dispatchList);

		peer->needsDispatch = 1;
	}

	if (!enet_list_empty(&channel->incomingUnreliableCommands))
		enet_peer_dispatch_incoming_unreliable_commands(peer, channel);
}

ENetIncomingCommand* enet_peer_queue_incoming_command(ENetPeer* peer, const ENetProtocol* command, const void* data, size_t dataLength, uint32_t flags, uint32_t fragmentCount) {
	static ENetIncomingCommand dummyCommand;

	ENetChannel* channel = &peer->channels[command->header.channelID];
	uint32_t unreliableSequenceNumber = 0, reliableSequenceNumber = 0;
	uint16_t reliableWindow, currentWindow;
	ENetIncomingCommand* incomingCommand;
	ENetListIterator currentCommand;
	ENetPacket* packet = NULL;

	if (peer->state == ENET_PEER_STATE_DISCONNECT_LATER)
		goto discardCommand;

	if ((command->header.command & ENET_PROTOCOL_COMMAND_MASK) != ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED) {
		reliableSequenceNumber = command->header.reliableSequenceNumber;
		reliableWindow = reliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;
		currentWindow = channel->incomingReliableSequenceNumber / ENET_PEER_RELIABLE_WINDOW_SIZE;

		if (reliableSequenceNumber < channel->incomingReliableSequenceNumber)
			reliableWindow += ENET_PEER_RELIABLE_WINDOWS;

		if (reliableWindow < currentWindow || reliableWindow >= currentWindow + ENET_PEER_FREE_RELIABLE_WINDOWS - 1)
			goto discardCommand;
	}

	switch (command->header.command & ENET_PROTOCOL_COMMAND_MASK) {
	case ENET_PROTOCOL_COMMAND_SEND_FRAGMENT:
	case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:
		if (reliableSequenceNumber == channel->incomingReliableSequenceNumber)
			goto discardCommand;

		for (currentCommand = enet_list_previous(enet_list_end(&channel->incomingReliableCommands)); currentCommand != enet_list_end(&channel->incomingReliableCommands); currentCommand = enet_list_previous(currentCommand)) {
			incomingCommand = (ENetIncomingCommand*)currentCommand;

			if (reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
				if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
					continue;
			}
			else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
				break;
			}

			if (incomingCommand->reliableSequenceNumber <= reliableSequenceNumber) {
				if (incomingCommand->reliableSequenceNumber < reliableSequenceNumber)
					break;

				goto discardCommand;
			}
		}

		break;

	case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE:
	case ENET_PROTOCOL_COMMAND_SEND_UNRELIABLE_FRAGMENT:
		unreliableSequenceNumber = ENET_NET_TO_HOST_16(command->sendUnreliable.unreliableSequenceNumber);

		if (reliableSequenceNumber == channel->incomingReliableSequenceNumber && unreliableSequenceNumber <= channel->incomingUnreliableSequenceNumber)
			goto discardCommand;

		for (currentCommand = enet_list_previous(enet_list_end(&channel->incomingUnreliableCommands)); currentCommand != enet_list_end(&channel->incomingUnreliableCommands); currentCommand = enet_list_previous(currentCommand)) {
			incomingCommand = (ENetIncomingCommand*)currentCommand;

			if ((command->header.command & ENET_PROTOCOL_COMMAND_MASK) == ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED)
				continue;

			if (reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
				if (incomingCommand->reliableSequenceNumber < channel->incomingReliableSequenceNumber)
					continue;
			}
			else if (incomingCommand->reliableSequenceNumber >= channel->incomingReliableSequenceNumber) {
				break;
			}

			if (incomingCommand->reliableSequenceNumber < reliableSequenceNumber)
				break;

			if (incomingCommand->reliableSequenceNumber > reliableSequenceNumber)
				continue;

			if (incomingCommand->unreliableSequenceNumber <= unreliableSequenceNumber) {
				if (incomingCommand->unreliableSequenceNumber < unreliableSequenceNumber)
					break;

				goto discardCommand;
			}
		}

		break;

	case ENET_PROTOCOL_COMMAND_SEND_UNSEQUENCED:
		currentCommand = enet_list_end(&channel->incomingUnreliableCommands);

		break;

	default:
		goto discardCommand;
	}

	if (peer->totalWaitingData >= peer->host->maximumWaitingData)
		goto notifyError;

	packet = enet_packet_create(data, dataLength, flags);

	if (packet == NULL)
		goto notifyError;

	incomingCommand = (ENetIncomingCommand*)enet_malloc(sizeof(ENetIncomingCommand));

	if (incomingCommand == NULL)
		goto notifyError;

	incomingCommand->reliableSequenceNumber = command->header.reliableSequenceNumber;
	incomingCommand->unreliableSequenceNumber = unreliableSequenceNumber & 0xFFFF;
	incomingCommand->command = *command;
	incomingCommand->fragmentCount = fragmentCount;
	incomingCommand->fragmentsRemaining = fragmentCount;
	incomingCommand->packet = packet;
	incomingCommand->fragments = NULL;

	if (fragmentCount > 0) {
		if (fragmentCount <= ENET_PROTOCOL_MAXIMUM_FRAGMENT_COUNT)
			incomingCommand->fragments = (uint32_t*)enet_malloc((fragmentCount + 31) / 32 * sizeof(uint32_t));

		if (incomingCommand->fragments == NULL) {
			enet_free(incomingCommand);

			goto notifyError;
		}

		memset(incomingCommand->fragments, 0, (fragmentCount + 31) / 32 * sizeof(uint32_t));
	}

	if (packet != NULL) {
		++packet->referenceCount;
		peer->totalWaitingData += packet->dataLength;
	}

	enet_list_insert(enet_list_next(currentCommand), incomingCommand);

	switch (command->header.command & ENET_PROTOCOL_COMMAND_MASK) {
	case ENET_PROTOCOL_COMMAND_SEND_FRAGMENT:
	case ENET_PROTOCOL_COMMAND_SEND_RELIABLE:
		enet_peer_dispatch_incoming_reliable_commands(peer, channel);

		break;

	default:
		enet_peer_dispatch_incoming_unreliable_commands(peer, channel);

		break;
	}

	return incomingCommand;

discardCommand:

	if (fragmentCount > 0)
		goto notifyError;

	if (packet != NULL && packet->referenceCount == 0)
		enet_packet_destroy(packet);

	return &dummyCommand;

notifyError:

	if (packet != NULL && packet->referenceCount == 0)
		enet_packet_destroy(packet);

	return NULL;
}

/*
=======================================================================
	Host
=======================================================================
*/

ENetHost* enet_host_create(const ENetAddress* address, size_t peerCount, size_t channelLimit, uint32_t incomingBandwidth, uint32_t outgoingBandwidth, int bufferSize) {
	ENET_LOG_TRACE("ENET Host being created.");
	ENetHost* host;
	ENetPeer* currentPeer;

	if (peerCount > ENET_PROTOCOL_MAXIMUM_PEER_ID) {
		ENET_LOG_ERROR("peer count greater than %u", ENET_PROTOCOL_MAXIMUM_PEER_ID);
		return NULL;
	}


	host = (ENetHost*)enet_malloc(sizeof(ENetHost));

	if (host == NULL) {
		ENET_LOG_ERROR("host malloc failure; wanted %u bytes", sizeof(ENetHost));
		return NULL;
	}


	memset(host, 0, sizeof(ENetHost));

	host->peers = (ENetPeer*)enet_malloc(peerCount * sizeof(ENetPeer));

	if (host->peers == NULL) {
		ENET_LOG_ERROR("host peer malloc failure; wanted %u bytes", peerCount * sizeof(ENetPeer));
		enet_free(host);

		return NULL;
	}

	memset(host->peers, 0, peerCount * sizeof(ENetPeer));

	host->socket = enet_socket_create(ENET_SOCKET_TYPE_DATAGRAM);

	if (host->socket != ENET_SOCKET_NULL) {
		ENET_LOG_TRACE("Switching socket to IPv6 version 6 only mode");
		enet_socket_set_option(host->socket, ENET_SOCKOPT_IPV6_V6ONLY, 0);
	}

		int socketBindResult = enet_socket_bind(host->socket, address);
		
		if (host->socket == ENET_SOCKET_NULL || (address != NULL && socketBindResult < 0)) {
		if (host->socket != ENET_SOCKET_NULL) {
			ENET_LOG_TRACE("Destroying old socket");
			enet_socket_destroy(host->socket);
		}

		ENET_LOG_ERROR("Bind socket failed; error code %i", socketBindResult);
		enet_free(host->peers);
		enet_free(host);

		return NULL;
	}


	ENET_LOG_TRACE("START: Buffer Setup");
	if (bufferSize > ENET_HOST_BUFFER_SIZE_MAX)
		bufferSize = ENET_HOST_BUFFER_SIZE_MAX;
	else if (bufferSize < ENET_HOST_BUFFER_SIZE_MIN)
		bufferSize = ENET_HOST_BUFFER_SIZE_MIN;

	ENET_LOG_TRACE("START: Setup socket options");
	enet_socket_set_option(host->socket, ENET_SOCKOPT_NONBLOCK, 1);
	enet_socket_set_option(host->socket, ENET_SOCKOPT_BROADCAST, 1);
	enet_socket_set_option(host->socket, ENET_SOCKOPT_RCVBUF, bufferSize);
	enet_socket_set_option(host->socket, ENET_SOCKOPT_SNDBUF, bufferSize);

	ENET_LOG_TRACE("START: Address Setup");
	if (address != NULL && enet_socket_get_address(host->socket, &host->address) < 0)
		host->address = *address;

	ENET_LOG_TRACE("START: Channels Setup");
	if (!channelLimit || channelLimit > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
		channelLimit = ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT;
	else if (channelLimit < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT)
		channelLimit = ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT;

	host->randomSeed = (uint32_t)(size_t)host;
	host->randomSeed += enet_host_random_seed();
	host->randomSeed = (host->randomSeed << 16) | (host->randomSeed >> 16);
	host->channelLimit = channelLimit;
	host->incomingBandwidth = incomingBandwidth;
	host->outgoingBandwidth = outgoingBandwidth;
	host->bandwidthThrottleEpoch = 0;
	host->recalculateBandwidthLimits = 0;
	host->preventConnections = 0;
	host->mtu = ENET_HOST_DEFAULT_MTU;
	host->peerCount = peerCount;
	host->commandCount = 0;
	host->bufferCount = 0;
	host->checksumCallback = NULL;
	host->receivedAddress.ipv6 = ENET_HOST_ANY;
	host->receivedAddress.port = 0;
	host->receivedData = NULL;
	host->receivedDataLength = 0;
	host->totalSentData = 0;
	host->totalSentPackets = 0;
	host->totalReceivedData = 0;
	host->totalReceivedPackets = 0;
	host->connectedPeers = 0;
	host->bandwidthLimitedPeers = 0;
	host->duplicatePeers = ENET_PROTOCOL_MAXIMUM_PEER_ID;
	host->maximumPacketSize = ENET_HOST_DEFAULT_MAXIMUM_PACKET_SIZE;
	host->maximumWaitingData = ENET_HOST_DEFAULT_MAXIMUM_WAITING_DATA;
	host->interceptCallback = NULL;

	ENET_LOG_TRACE("Clearing dispatch queue");
	enet_list_clear(&host->dispatchQueue);

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		currentPeer->host = host;
		currentPeer->incomingPeerID = currentPeer - host->peers;
		currentPeer->outgoingSessionID = currentPeer->incomingSessionID = 0xFF;
		currentPeer->data = NULL;

		enet_list_clear(&currentPeer->acknowledgements);
		enet_list_clear(&currentPeer->sentReliableCommands);
		enet_list_clear(&currentPeer->sentUnreliableCommands);
		enet_list_clear(&currentPeer->outgoingReliableCommands);
		enet_list_clear(&currentPeer->outgoingUnreliableCommands);
		enet_list_clear(&currentPeer->dispatchedCommands);
		enet_peer_reset(currentPeer);
	}

	ENET_LOG_TRACE("SHOWTIME: Host created successfully.");
	return host;
}

void enet_host_destroy(ENetHost* host) {
	ENET_LOG_TRACE("ENET Host being destroyed.");

	ENetPeer* currentPeer;

	if (host == NULL)
		return;

	enet_socket_destroy(host->socket);

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		enet_peer_reset(currentPeer);
	}

	enet_free(host->peers);
	enet_free(host);
}

void enet_host_prevent_connections(ENetHost* host, uint8_t state) {
	if (host == NULL)
		return;

	host->preventConnections = state;
}

ENetPeer* enet_host_connect(ENetHost* host, const ENetAddress* address, size_t channelCount, uint32_t data) {
	ENET_LOG_TRACE("Connection to host going up");

	ENetPeer* currentPeer;
	ENetChannel* channel;
	ENetProtocol command;

	if (channelCount < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT)
		channelCount = ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT;
	else if (channelCount > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
		channelCount = ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT;

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		if (currentPeer->state == ENET_PEER_STATE_DISCONNECTED)
			break;
	}

	if (currentPeer >= &host->peers[host->peerCount])
		return NULL;

	currentPeer->channels = (ENetChannel*)enet_malloc(channelCount * sizeof(ENetChannel));

	if (currentPeer->channels == NULL)
		return NULL;

	currentPeer->channelCount = channelCount;
	currentPeer->state = ENET_PEER_STATE_CONNECTING;
	currentPeer->address = *address;
	currentPeer->connectID = ++host->randomSeed;

	if (host->outgoingBandwidth == 0)
		currentPeer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;
	else
		currentPeer->windowSize = (host->outgoingBandwidth / ENET_PEER_WINDOW_SIZE_SCALE) * ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;

	if (currentPeer->windowSize < ENET_PROTOCOL_MINIMUM_WINDOW_SIZE)
		currentPeer->windowSize = ENET_PROTOCOL_MINIMUM_WINDOW_SIZE;
	else if (currentPeer->windowSize > ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE)
		currentPeer->windowSize = ENET_PROTOCOL_MAXIMUM_WINDOW_SIZE;

	for (channel = currentPeer->channels; channel < &currentPeer->channels[channelCount]; ++channel) {
		channel->outgoingReliableSequenceNumber = 0;
		channel->outgoingUnreliableSequenceNumber = 0;
		channel->incomingReliableSequenceNumber = 0;
		channel->incomingUnreliableSequenceNumber = 0;

		enet_list_clear(&channel->incomingReliableCommands);
		enet_list_clear(&channel->incomingUnreliableCommands);

		channel->usedReliableWindows = 0;

		memset(channel->reliableWindows, 0, sizeof(channel->reliableWindows));
	}

	command.header.command = ENET_PROTOCOL_COMMAND_CONNECT | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
	command.header.channelID = 0xFF;
	command.connect.outgoingPeerID = ENET_HOST_TO_NET_16(currentPeer->incomingPeerID);
	command.connect.incomingSessionID = currentPeer->incomingSessionID;
	command.connect.outgoingSessionID = currentPeer->outgoingSessionID;
	command.connect.mtu = ENET_HOST_TO_NET_32(currentPeer->mtu);
	command.connect.windowSize = ENET_HOST_TO_NET_32(currentPeer->windowSize);
	command.connect.channelCount = ENET_HOST_TO_NET_32(channelCount);
	command.connect.incomingBandwidth = ENET_HOST_TO_NET_32(host->incomingBandwidth);
	command.connect.outgoingBandwidth = ENET_HOST_TO_NET_32(host->outgoingBandwidth);
	command.connect.packetThrottleInterval = ENET_HOST_TO_NET_32(currentPeer->packetThrottleInterval);
	command.connect.packetThrottleAcceleration = ENET_HOST_TO_NET_32(currentPeer->packetThrottleAcceleration);
	command.connect.packetThrottleDeceleration = ENET_HOST_TO_NET_32(currentPeer->packetThrottleDeceleration);
	command.connect.connectID = currentPeer->connectID;
	command.connect.data = ENET_HOST_TO_NET_32(data);

	enet_peer_queue_outgoing_command(currentPeer, &command, NULL, 0, 0);

	return currentPeer;
}

void enet_host_broadcast(ENetHost* host, uint8_t channelID, ENetPacket* packet) {
	ENetPeer* currentPeer;

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		++packet->referenceCount;

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		if (currentPeer->state != ENET_PEER_STATE_CONNECTED)
			continue;

		enet_peer_send(currentPeer, channelID, packet);
	}

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		--packet->referenceCount;

	if (packet->referenceCount == 0)
		enet_packet_destroy(packet);
}

void enet_host_broadcast_exclude(ENetHost* host, uint8_t channelID, ENetPacket* packet, ENetPeer* excludedPeer) {
	ENetPeer* currentPeer;

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		++packet->referenceCount;

	for (currentPeer = host->peers; currentPeer < &host->peers[host->peerCount]; ++currentPeer) {
		if (currentPeer->state != ENET_PEER_STATE_CONNECTED || currentPeer == excludedPeer)
			continue;

		enet_peer_send(currentPeer, channelID, packet);
	}

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		--packet->referenceCount;

	if (packet->referenceCount == 0)
		enet_packet_destroy(packet);
}

void enet_host_broadcast_selective(ENetHost* host, uint8_t channelID, ENetPacket* packet, ENetPeer** peers, size_t length) {
	ENetPeer* currentPeer;
	size_t i;

	if (host == NULL)
		return;

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		++packet->referenceCount;

	for (i = 0; i < length; i++) {
		currentPeer = peers[i];

		if (currentPeer == NULL || currentPeer->state != ENET_PEER_STATE_CONNECTED)
			continue;

		enet_peer_send(currentPeer, channelID, packet);
	}

	if (packet->flags & ENET_PACKET_FLAG_INSTANT)
		--packet->referenceCount;

	if (packet->referenceCount == 0)
		enet_packet_destroy(packet);
}

void enet_host_channel_limit(ENetHost* host, size_t channelLimit) {
	if (!channelLimit || channelLimit > ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT)
		channelLimit = ENET_PROTOCOL_MAXIMUM_CHANNEL_COUNT;
	else if (channelLimit < ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT)
		channelLimit = ENET_PROTOCOL_MINIMUM_CHANNEL_COUNT;

	host->channelLimit = channelLimit;
}

void enet_host_bandwidth_limit(ENetHost* host, uint32_t incomingBandwidth, uint32_t outgoingBandwidth) {
	host->incomingBandwidth = incomingBandwidth;
	host->outgoingBandwidth = outgoingBandwidth;
	host->recalculateBandwidthLimits = 1;
}

void enet_host_bandwidth_throttle(ENetHost* host) {
	uint32_t timeCurrent = enet_time_get();
	uint32_t elapsedTime = timeCurrent - host->bandwidthThrottleEpoch;
	uint32_t peersRemaining = (uint32_t)host->connectedPeers;
	uint32_t dataTotal = ~0;
	uint32_t bandwidth = ~0;
	uint32_t throttle = 0;
	uint32_t bandwidthLimit = 0;

	int needsAdjustment = host->bandwidthLimitedPeers > 0 ? 1 : 0;
	ENetPeer* peer;
	ENetProtocol command;

	if (elapsedTime < ENET_HOST_BANDWIDTH_THROTTLE_INTERVAL)
		return;

	if (host->outgoingBandwidth == 0 && host->incomingBandwidth == 0)
		return;

	host->bandwidthThrottleEpoch = timeCurrent;

	if (peersRemaining == 0)
		return;

	if (host->outgoingBandwidth != 0) {
		dataTotal = 0;
		bandwidth = (host->outgoingBandwidth * elapsedTime) / 1000;

		for (peer = host->peers; peer < &host->peers[host->peerCount]; ++peer) {
			if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
				continue;

			dataTotal += peer->outgoingDataTotal;
		}
	}

	while (peersRemaining > 0 && needsAdjustment != 0) {
		needsAdjustment = 0;

		if (dataTotal <= bandwidth)
			throttle = ENET_PEER_PACKET_THROTTLE_SCALE;
		else
			throttle = (bandwidth * ENET_PEER_PACKET_THROTTLE_SCALE) / dataTotal;

		for (peer = host->peers; peer < &host->peers[host->peerCount]; ++peer) {
			uint32_t peerBandwidth;

			if ((peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER) || peer->incomingBandwidth == 0 || peer->outgoingBandwidthThrottleEpoch == timeCurrent)
				continue;

			peerBandwidth = (peer->incomingBandwidth * elapsedTime) / 1000;

			if ((throttle * peer->outgoingDataTotal) / ENET_PEER_PACKET_THROTTLE_SCALE <= peerBandwidth)
				continue;

			peer->packetThrottleLimit = (peerBandwidth * ENET_PEER_PACKET_THROTTLE_SCALE) / peer->outgoingDataTotal;

			if (peer->packetThrottleLimit == 0)
				peer->packetThrottleLimit = 1;

			if (peer->packetThrottle > peer->packetThrottleLimit)
				peer->packetThrottle = peer->packetThrottleLimit;

			peer->outgoingBandwidthThrottleEpoch = timeCurrent;
			peer->incomingDataTotal = 0;
			peer->outgoingDataTotal = 0;
			needsAdjustment = 1;
			--peersRemaining;
			bandwidth -= peerBandwidth;
			dataTotal -= peerBandwidth;
		}
	}

	if (peersRemaining > 0) {
		if (dataTotal <= bandwidth)
			throttle = ENET_PEER_PACKET_THROTTLE_SCALE;
		else
			throttle = (bandwidth * ENET_PEER_PACKET_THROTTLE_SCALE) / dataTotal;

		for (peer = host->peers; peer < &host->peers[host->peerCount]; ++peer) {
			if ((peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER) || peer->outgoingBandwidthThrottleEpoch == timeCurrent)
				continue;

			peer->packetThrottleLimit = throttle;

			if (peer->packetThrottle > peer->packetThrottleLimit)
				peer->packetThrottle = peer->packetThrottleLimit;

			peer->incomingDataTotal = 0;
			peer->outgoingDataTotal = 0;
		}
	}

	if (host->recalculateBandwidthLimits) {
		host->recalculateBandwidthLimits = 0;
		peersRemaining = (uint32_t)host->connectedPeers;
		bandwidth = host->incomingBandwidth;
		needsAdjustment = 1;

		if (bandwidth == 0) {
			bandwidthLimit = 0;
		}
		else {
			while (peersRemaining > 0 && needsAdjustment != 0) {
				needsAdjustment = 0;
				bandwidthLimit = bandwidth / peersRemaining;

				for (peer = host->peers; peer < &host->peers[host->peerCount]; ++peer) {
					if ((peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER) || peer->incomingBandwidthThrottleEpoch == timeCurrent)
						continue;

					if (peer->outgoingBandwidth > 0 && peer->outgoingBandwidth >= bandwidthLimit)
						continue;

					peer->incomingBandwidthThrottleEpoch = timeCurrent;
					needsAdjustment = 1;
					--peersRemaining;
					bandwidth -= peer->outgoingBandwidth;
				}
			}
		}

		for (peer = host->peers; peer < &host->peers[host->peerCount]; ++peer) {
			if (peer->state != ENET_PEER_STATE_CONNECTED && peer->state != ENET_PEER_STATE_DISCONNECT_LATER)
				continue;

			command.header.command = ENET_PROTOCOL_COMMAND_BANDWIDTH_LIMIT | ENET_PROTOCOL_COMMAND_FLAG_ACKNOWLEDGE;
			command.header.channelID = 0xFF;
			command.bandwidthLimit.outgoingBandwidth = ENET_HOST_TO_NET_32(host->outgoingBandwidth);

			if (peer->incomingBandwidthThrottleEpoch == timeCurrent)
				command.bandwidthLimit.incomingBandwidth = ENET_HOST_TO_NET_32(peer->outgoingBandwidth);
			else
				command.bandwidthLimit.incomingBandwidth = ENET_HOST_TO_NET_32(bandwidthLimit);

			enet_peer_queue_outgoing_command(peer, &command, NULL, 0, 0);
		}
	}
}

/*
=======================================================================
	Address
=======================================================================
*/

int enet_address_set_ip(ENetAddress* address, const char* ip) {
	int type = AF_INET6;
	void* destination = &address->ipv6;

	if (strchr(ip, ':') == NULL) {
		type = AF_INET;

		memset(address, 0, sizeof(address->ipv4.zeros));

		address->ipv4.ffff = 0xFFFF;
		destination = &address->ipv4.ip;
	}

	if (!inet_pton(type, ip, destination)) {
		ENET_LOG_ERROR("Error returned from inet_pton");
		return -1;
	}


	return 0;
}

int enet_address_set_hostname(ENetAddress* address, const char* name) {
	struct addrinfo hints, * resultList = NULL, * result = NULL;

	memset(&hints, 0, sizeof(hints));

	hints.ai_family = AF_UNSPEC;

	if (getaddrinfo(name, NULL, &hints, &resultList) != 0) {
		ENET_LOG_ERROR("Error returned from getaddrinfo");
		return -1;
	}

	for (result = resultList; result != NULL; result = result->ai_next) {
		if (result->ai_addr != NULL && result->ai_addrlen >= sizeof(struct sockaddr_in)) {
			if (result->ai_family == AF_INET) {
				struct sockaddr_in* sin = (struct sockaddr_in*)result->ai_addr;

				memset(address, 0, sizeof(address->ipv4.zeros));

				address->ipv4.ffff = 0xFFFF;
				address->ipv4.ip.s_addr = sin->sin_addr.s_addr;

				freeaddrinfo(resultList);

				return 0;
			}
			else if (result->ai_family == AF_INET6) {
				struct sockaddr_in6* sin = (struct sockaddr_in6*)result->ai_addr;

				address->ipv6 = sin->sin6_addr;

				freeaddrinfo(resultList);

				return 0;
			}
		}
	}

	if (resultList != NULL)
		freeaddrinfo(resultList);

	return enet_address_set_ip(address, name);
}

int enet_address_get_ip(const ENetAddress* address, char* ip, size_t ipLength) {
	if (address->ipv4.ffff == 0xFFFF && enet_array_is_zeroed(address->ipv4.zeros, sizeof(address->ipv4.zeros)) == 0) {
		if (inet_ntop(AF_INET, &address->ipv4.ip, ip, ipLength) == NULL) {
			ENET_LOG_ERROR("Error returned from inet_pton: NULL");
			return -1;
		}
	}
	else if (inet_ntop(AF_INET6, &address->ipv6, ip, ipLength) == NULL) {
		ENET_LOG_ERROR("Error returned from inet_pton: NULL");
		return -1;
	}

	return 0;
}

int enet_address_get_hostname(const ENetAddress* address, char* name, size_t nameLength) {
	struct sockaddr_in6 sin;
	int err;

	memset(&sin, 0, sizeof(struct sockaddr_in6));

	sin.sin6_family = AF_INET6;
	sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
	sin.sin6_addr = address->ipv6;

	err = getnameinfo((struct sockaddr*) & sin, sizeof(sin), name, nameLength, NULL, 0, NI_NAMEREQD);

	if (!err) {
		if (name != NULL && nameLength > 0 && !memchr(name, '\0', nameLength))
			return -1;

		return 0;
	}

	if (err != EAI_NONAME) {
		ENET_LOG_ERROR("getnameinfo error occurred: %i", err);
		return -1;
	}


	return enet_address_get_ip(address, name, nameLength);
}

/*
=======================================================================
	Platform-specific (Unix)
=======================================================================
*/

#ifndef _WIN32
int enet_initialize(void) {
	return 0;
}

void enet_deinitialize(void) { }

uint64_t enet_host_random_seed(void) {
	struct timeval timeVal;

	gettimeofday(&timeVal, NULL);

	return (timeVal.tv_sec * 1000) ^ (timeVal.tv_usec / 1000);
}

int enet_socket_bind(ENetSocket socket, const ENetAddress* address) {
	struct sockaddr_in6 sin;

	memset(&sin, 0, sizeof(struct sockaddr_in6));

	sin.sin6_family = AF_INET6;

	if (address != NULL) {
		sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
		sin.sin6_addr = address->ipv6;
	}
	else {
		sin.sin6_port = 0;
		sin.sin6_addr = ENET_HOST_ANY;
	}

	return bind(socket, (struct sockaddr*) & sin, sizeof(struct sockaddr_in6));
}

int enet_socket_get_address(ENetSocket socket, ENetAddress* address) {
	struct sockaddr_storage ss;
	socklen_t saLength = sizeof(ss);

	if (getsockname(socket, (struct sockaddr*) & ss, &saLength) == -1) {
		ENET_LOG_ERROR("getsockname failure");
		return -1;
	}


	if (ss.ss_family == AF_INET) {
		struct sockaddr_in* sin = (struct sockaddr_in*) & ss;

		memset(address, 0, sizeof(address->ipv4.zeros));

		address->ipv4.ffff = 0xFFFF;
		address->ipv4.ip = sin->sin_addr;
		address->port = ENET_NET_TO_HOST_16(sin->sin_port);
	}
	else if (ss.ss_family == AF_INET6) {
		struct sockaddr_in6* sin = (struct sockaddr_in6*) & ss;

		address->ipv6 = sin->sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin->sin6_port);
	}

	return 0;
}

int enet_socket_listen(ENetSocket socket, int backlog) {
	return listen(socket, backlog < 0 ? SOMAXCONN : backlog);
}

ENetSocket enet_socket_create(ENetSocketType type) {
	int socketType = (type == ENET_SOCKET_TYPE_DATAGRAM ? SOCK_DGRAM : SOCK_STREAM);

#ifdef SOCK_CLOEXEC
	socketType |= SOCK_CLOEXEC;
#endif

	return socket(PF_INET6, socketType, 0);
}

int enet_socket_set_option(ENetSocket socket, ENetSocketOption option, int value) {
	int result = -1;

	switch (option) {
	case ENET_SOCKOPT_NONBLOCK:
		result = fcntl(socket, F_SETFL, (value ? O_NONBLOCK : 0) | (fcntl(socket, F_GETFL) & ~O_NONBLOCK));

		break;

	case ENET_SOCKOPT_BROADCAST:
		result = setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_REUSEADDR:
		result = setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_RCVBUF:
		result = setsockopt(socket, SOL_SOCKET, SO_RCVBUF, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_SNDBUF:
		result = setsockopt(socket, SOL_SOCKET, SO_SNDBUF, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_RCVTIMEO: {
		struct timeval timeVal;

		timeVal.tv_sec = value / 1000;
		timeVal.tv_usec = (value % 1000) * 1000;
		result = setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeVal, sizeof(struct timeval));

		break;
	}

	case ENET_SOCKOPT_SNDTIMEO: {
		struct timeval timeVal;

		timeVal.tv_sec = value / 1000;
		timeVal.tv_usec = (value % 1000) * 1000;
		result = setsockopt(socket, SOL_SOCKET, SO_SNDTIMEO, (char*)&timeVal, sizeof(struct timeval));

		break;
	}

	case ENET_SOCKOPT_NODELAY:
		result = setsockopt(socket, IPPROTO_TCP, TCP_NODELAY, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_IPV6_V6ONLY:
		result = setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&value, sizeof(int));

		break;

	default:
		break;
	}

	return result == -1 ? -1 : 0;
}

int enet_socket_get_option(ENetSocket socket, ENetSocketOption option, int* value) {
	int result = -1;
	socklen_t len;

	switch (option) {
	case ENET_SOCKOPT_ERROR:
		len = sizeof(int);
		result = getsockopt(socket, SOL_SOCKET, SO_ERROR, value, &len);

		break;

	default:
		break;
	}

	return result == -1 ? -1 : 0;
}

int enet_socket_connect(ENetSocket socket, const ENetAddress* address) {
	int result = -1;
	struct sockaddr_in6 sin;

	memset(&sin, 0, sizeof(struct sockaddr_in6));

	sin.sin6_family = AF_INET6;
	sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
	sin.sin6_addr = address->ipv6;

	result = connect(socket, (struct sockaddr*) & sin, sizeof(struct sockaddr_in6));

	if (result == -1 && errno == EINPROGRESS)
		return 0;

	return result;
}

ENetSocket enet_socket_accept(ENetSocket socket, ENetAddress* address) {
	int result = -1;
	struct sockaddr_in6 sin;
	socklen_t sinLength = sizeof(struct sockaddr_in6);

	result = accept(socket, address != NULL ? (struct sockaddr*) & sin : NULL, address != NULL ? &sinLength : NULL);

	if (result == -1)
		return ENET_SOCKET_NULL;

	if (address != NULL) {
		address->ipv6 = sin.sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin.sin6_port);
	}

	return result;
}

int enet_socket_shutdown(ENetSocket socket, ENetSocketShutdown how) {
	return shutdown(socket, (int)how);
}

void enet_socket_destroy(ENetSocket socket) {
	if (socket != ENET_SOCKET_NULL)
		close(socket);
}

int enet_socket_send(ENetSocket socket, const ENetAddress* address, const ENetBuffer* buffers, size_t bufferCount) {
	struct msghdr msgHdr;
	struct sockaddr_in6 sin;
	int sentLength;

	memset(&msgHdr, 0, sizeof(struct msghdr));

	if (address != NULL) {
		memset(&sin, 0, sizeof(struct sockaddr_in6));

		sin.sin6_family = AF_INET6;
		sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
		sin.sin6_addr = address->ipv6;
		msgHdr.msg_name = &sin;
		msgHdr.msg_namelen = sizeof(struct sockaddr_in6);
	}

	msgHdr.msg_iov = (struct iovec*)buffers;
	msgHdr.msg_iovlen = bufferCount;
	sentLength = sendmsg(socket, &msgHdr, MSG_NOSIGNAL);

	if (sentLength == -1) {
		if (errno == EWOULDBLOCK)
			return 0;

		return -1;
	}

	return sentLength;
}

int enet_socket_receive(ENetSocket socket, ENetAddress* address, ENetBuffer* buffers, size_t bufferCount) {
	struct msghdr msgHdr;
	struct sockaddr_in6 sin;
	int recvLength;

	memset(&msgHdr, 0, sizeof(struct msghdr));

	if (address != NULL) {
		msgHdr.msg_name = &sin;
		msgHdr.msg_namelen = sizeof(struct sockaddr_in6);
	}

	msgHdr.msg_iov = (struct iovec*)buffers;
	msgHdr.msg_iovlen = bufferCount;
	recvLength = recvmsg(socket, &msgHdr, MSG_NOSIGNAL);

	if (recvLength == -1) {
		if (errno == EWOULDBLOCK)
			return 0;

		return -1;
	}

	
	if (msgHdr.msg_flags & MSG_TRUNC) {
		ENET_LOG_ERROR("this enet message header was truncated...\n");
		// commit 5f0e1b475caa019157c3cf881a8d08009150f1e2 from upstream
		return -2;
	}


	if (address != NULL) {
		address->ipv6 = sin.sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin.sin6_port);
	}

	return recvLength;
}

int enet_socket_set_select(ENetSocket maxSocket, ENetSocketSet* readSet, ENetSocketSet* writeSet, uint32_t timeout) {
	struct timeval timeVal;

	timeVal.tv_sec = timeout / 1000;
	timeVal.tv_usec = (timeout % 1000) * 1000;

	return select(maxSocket + 1, readSet, writeSet, NULL, &timeVal);
}

int enet_socket_wait(ENetSocket socket, uint32_t* condition, uint64_t timeout) {
	struct pollfd pollSocket;
	int pollCount;

	pollSocket.fd = socket;
	pollSocket.events = 0;

	if (*condition & ENET_SOCKET_WAIT_SEND)
		pollSocket.events |= POLLOUT;

	if (*condition & ENET_SOCKET_WAIT_RECEIVE)
		pollSocket.events |= POLLIN;

	pollCount = poll(&pollSocket, 1, timeout);

	if (pollCount < 0) {
		if (errno == EINTR && *condition & ENET_SOCKET_WAIT_INTERRUPT) {
			*condition = ENET_SOCKET_WAIT_INTERRUPT;

			return 0;
		}

		ENET_LOG_ERROR("pollCount < 0: %i", pollCount);
		return -1;
	}

	*condition = ENET_SOCKET_WAIT_NONE;

	if (pollCount == 0)
		return 0;

	if (pollSocket.revents & POLLOUT)
		*condition |= ENET_SOCKET_WAIT_SEND;

	if (pollSocket.revents & POLLIN)
		*condition |= ENET_SOCKET_WAIT_RECEIVE;

	return 0;
}
#endif

/*
=======================================================================
	Platform-specific (Windows)
=======================================================================
*/

#ifdef _WIN32
int enet_initialize(void) {
	WORD versionRequested = MAKEWORD(2, 2);
	WSADATA wsaData;

	if (WSAStartup(versionRequested, &wsaData)) {
		ENET_LOG_ERROR("WSAStartup failure");
		return -1;
	}

	if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2) {
		ENET_LOG_ERROR("Winsock version mismatch");
		WSACleanup();

		return -1;
	}

	timeBeginPeriod(1);
	ENET_LOG_TRACE("Windows Environment: ENet Initialization");
	return 0;
}

void enet_deinitialize(void) {
	timeEndPeriod(1);
	WSACleanup();

	ENET_LOG_TRACE("Windows Environment: ENet Deinitialization");
}

uint64_t enet_host_random_seed(void) {
	return (uint64_t)timeGetTime();
}

int enet_socket_bind(ENetSocket socket, const ENetAddress* address) {
	struct sockaddr_in6 sin;

	memset(&sin, 0, sizeof(struct sockaddr_in6));

	sin.sin6_family = AF_INET6;

	if (address != NULL) {
		sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
		sin.sin6_addr = address->ipv6;
	}
	else {
		sin.sin6_port = 0;
		sin.sin6_addr = in6addr_any;
	}

	return bind(socket, (struct sockaddr*) & sin, sizeof(struct sockaddr_in6)) == SOCKET_ERROR ? -1 : 0;
}

int enet_socket_get_address(ENetSocket socket, ENetAddress* address) {
	struct sockaddr_storage ss;
	int saLength = sizeof(ss);

	if (getsockname(socket, (struct sockaddr*) & ss, &saLength) == -1) {
		ENET_LOG_ERROR("getsockname failure");
		return -1;
	}


	if (ss.ss_family == AF_INET) {
		struct sockaddr_in* sin = (struct sockaddr_in*) & ss;

		memset(address, 0, sizeof(address->ipv4.zeros));

		address->ipv4.ffff = 0xFFFF;
		address->ipv4.ip = sin->sin_addr;
		address->port = ENET_NET_TO_HOST_16(sin->sin_port);
	}
	else if (ss.ss_family == AF_INET6) {
		struct sockaddr_in6* sin = (struct sockaddr_in6*) & ss;

		address->ipv6 = sin->sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin->sin6_port);
	}

	return 0;
}

int enet_socket_listen(ENetSocket socket, int backlog) {
	return listen(socket, backlog < 0 ? SOMAXCONN : backlog) == SOCKET_ERROR ? -1 : 0;
}

ENetSocket enet_socket_create(ENetSocketType type) {
	return socket(PF_INET6, type == ENET_SOCKET_TYPE_DATAGRAM ? SOCK_DGRAM : SOCK_STREAM, 0);
}

int enet_socket_set_option(ENetSocket socket, ENetSocketOption option, int value) {
	int result = SOCKET_ERROR;

	switch (option) {
	case ENET_SOCKOPT_NONBLOCK: {
		u_long nonBlocking = (u_long)value;

		result = ioctlsocket(socket, FIONBIO, &nonBlocking);

		break;
	}

	case ENET_SOCKOPT_BROADCAST:
		result = setsockopt(socket, SOL_SOCKET, SO_BROADCAST, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_REUSEADDR:
		result = setsockopt(socket, SOL_SOCKET, SO_REUSEADDR, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_RCVBUF:
		result = setsockopt(socket, SOL_SOCKET, SO_RCVBUF, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_SNDBUF:
		result = setsockopt(socket, SOL_SOCKET, SO_SNDBUF, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_RCVTIMEO:
		result = setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_SNDTIMEO:
		result = setsockopt(socket, SOL_SOCKET, SO_SNDTIMEO, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_NODELAY:
		result = setsockopt(socket, IPPROTO_TCP, TCP_NODELAY, (char*)&value, sizeof(int));

		break;

	case ENET_SOCKOPT_IPV6_V6ONLY:
		result = setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, (char*)&value, sizeof(int));

		break;

	default:
		break;
	}

	return result == SOCKET_ERROR ? -1 : 0;
}

int enet_socket_get_option(ENetSocket socket, ENetSocketOption option, int* value) {
	int result = SOCKET_ERROR, len;

	switch (option) {
	case ENET_SOCKOPT_ERROR:
		len = sizeof(int);
		result = getsockopt(socket, SOL_SOCKET, SO_ERROR, (char*)value, &len);

		break;

	default:
		break;
	}

	return result == SOCKET_ERROR ? -1 : 0;
}

int enet_socket_connect(ENetSocket socket, const ENetAddress* address) {
	int result = -1;
	struct sockaddr_in6 sin;

	memset(&sin, 0, sizeof(struct sockaddr_in6));

	sin.sin6_family = AF_INET6;
	sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
	sin.sin6_addr = address->ipv6;
	result = connect(socket, (struct sockaddr*) & sin, sizeof(struct sockaddr_in6));

	if (result == SOCKET_ERROR && WSAGetLastError() != WSAEWOULDBLOCK) {
		int winSockWhat = WSAGetLastError();
		ENET_LOG_ERROR("Socket connect failure, return code: %i, WSAGetLastError: %i", result, winSockWhat);

		return -1;
	}

	ENET_LOG_TRACE("Socket Connect");
	return 0;
}

ENetSocket enet_socket_accept(ENetSocket socket, ENetAddress* address) {
	SOCKET result;
	struct sockaddr_in6 sin;
	int sinLength = sizeof(struct sockaddr_in6);

	result = accept(socket, address != NULL ? (struct sockaddr*) & sin : NULL, address != NULL ? &sinLength : NULL);

	if (result == INVALID_SOCKET)
	{
		ENET_LOG_ERROR("Tried to accept from an invalid socket");
		return ENET_SOCKET_NULL;
	}


	if (address != NULL) {
		address->ipv6 = sin.sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin.sin6_port);
	}

	return result;
}

int enet_socket_shutdown(ENetSocket socket, ENetSocketShutdown how) {
	return shutdown(socket, (int)how) == SOCKET_ERROR ? -1 : 0;
}

void enet_socket_destroy(ENetSocket socket) {
	if (socket != INVALID_SOCKET)
		closesocket(socket);
}

int enet_socket_send(ENetSocket socket, const ENetAddress* address, const ENetBuffer* buffers, size_t bufferCount) {
	struct sockaddr_in6 sin;
	DWORD sentLength = 0;

	if (address != NULL) {
		memset(&sin, 0, sizeof(struct sockaddr_in6));

		sin.sin6_family = AF_INET6;
		sin.sin6_port = ENET_HOST_TO_NET_16(address->port);
		sin.sin6_addr = address->ipv6;
	}

	if (WSASendTo(socket, (LPWSABUF)buffers, (DWORD)bufferCount, &sentLength, 0, address != NULL ? (struct sockaddr*) & sin : NULL, address != NULL ? sizeof(struct sockaddr_in6) : 0, NULL, NULL) == SOCKET_ERROR)
		return (WSAGetLastError() == WSAEWOULDBLOCK) ? 0 : -1;

	return (int)sentLength;
}

int enet_socket_receive(ENetSocket socket, ENetAddress* address, ENetBuffer* buffers, size_t bufferCount) {
	INT sinLength = sizeof(struct sockaddr_in6);
	DWORD flags = 0, recvLength = 0;
	struct sockaddr_in6 sin;

	if (WSARecvFrom(socket, (LPWSABUF)buffers, (DWORD)bufferCount, &recvLength, &flags, address != NULL ? (struct sockaddr*) & sin : NULL, address != NULL ? &sinLength : NULL, NULL, NULL) == SOCKET_ERROR) {
		int retCode = WSAGetLastError();

		switch (WSAGetLastError()) {
		case WSAEWOULDBLOCK:
		case WSAECONNRESET:
			return 0;
		}

		ENET_LOG_ERROR("Socket receive failure, WSA return code %d", retCode);
		return -1;
	}

	if (flags & MSG_PARTIAL) {
		ENET_LOG_ERROR("Partial socket receive message");
		return -2;
	}

	if (address != NULL) {
		address->ipv6 = sin.sin6_addr;
		address->port = ENET_NET_TO_HOST_16(sin.sin6_port);
	}

	return (int)recvLength;
}

int enet_socket_set_select(ENetSocket maxSocket, ENetSocketSet* readSet, ENetSocketSet* writeSet, uint32_t timeout) {
	struct timeval timeVal;

	timeVal.tv_sec = timeout / 1000;
	timeVal.tv_usec = (timeout % 1000) * 1000;

	return select(maxSocket + 1, readSet, writeSet, NULL, &timeVal);
}

int enet_socket_wait(ENetSocket socket, uint32_t* condition, uint64_t timeout) {
	fd_set readSet, writeSet;
	struct timeval timeVal;
	int selectCount;

	timeVal.tv_sec = timeout / 1000;
	timeVal.tv_usec = (timeout % 1000) * 1000;

	FD_ZERO(&readSet);
	FD_ZERO(&writeSet);

	if (*condition & ENET_SOCKET_WAIT_SEND)
		FD_SET(socket, &writeSet);

	if (*condition & ENET_SOCKET_WAIT_RECEIVE)
		FD_SET(socket, &readSet);

	selectCount = select(socket + 1, &readSet, &writeSet, NULL, &timeVal);

	if (selectCount < 0) {
		ENET_LOG_ERROR("selectCount < 0; was %d", selectCount);
		return -1;
	}

	*condition = ENET_SOCKET_WAIT_NONE;

	if (selectCount == 0)
		return 0;

	if (FD_ISSET(socket, &writeSet))
		*condition |= ENET_SOCKET_WAIT_SEND;

	if (FD_ISSET(socket, &readSet))
		*condition |= ENET_SOCKET_WAIT_RECEIVE;

	return 0;
}
#endif

/*
=======================================================================
	Extended functionality
=======================================================================
*/

void* enet_packet_get_data(const ENetPacket* packet) {
	return (void*)packet->data;
}

void* enet_packet_get_user_data(const ENetPacket* packet) {
	return packet->userData;
}

void enet_packet_set_user_data(ENetPacket* packet, void* userData) {
	packet->userData = userData;
}

int enet_packet_get_length(const ENetPacket* packet) {
	return packet->dataLength;
}

void enet_packet_set_free_callback(ENetPacket* packet, const void* callback) {
	packet->freeCallback = (ENetPacketFreeCallback)callback;
}

int enet_packet_check_references(const ENetPacket* packet) {
	return (int)packet->referenceCount;
}

void enet_packet_dispose(ENetPacket* packet) {
	if (packet->referenceCount == 0)
		enet_packet_destroy(packet);
}

uint32_t enet_host_get_peers_count(const ENetHost* host) {
	return host->connectedPeers;
}

uint32_t enet_host_get_packets_sent(const ENetHost* host) {
	return host->totalSentPackets;
}

uint32_t enet_host_get_packets_received(const ENetHost* host) {
	return host->totalReceivedPackets;
}

uint32_t enet_host_get_bytes_sent(const ENetHost* host) {
	return host->totalSentData;
}

uint32_t enet_host_get_bytes_received(const ENetHost* host) {
	return host->totalReceivedData;
}

uint32_t enet_peer_get_id(const ENetPeer* peer) {
	return peer->incomingPeerID;
}

int enet_peer_get_ip(const ENetPeer* peer, char* ip, size_t ipLength) {
	return enet_address_get_ip(&peer->address, ip, ipLength);
}

uint16_t enet_peer_get_port(const ENetPeer* peer) {
	return peer->address.port;
}

uint32_t enet_peer_get_mtu(const ENetPeer* peer) {
	return peer->mtu;
}

ENetPeerState enet_peer_get_state(const ENetPeer* peer) {
	return peer->state;
}

uint32_t enet_peer_get_rtt(const ENetPeer* peer) {
	return peer->roundTripTime;
}

uint32_t enet_peer_get_last_rtt(const ENetPeer* peer) {
	return peer->lastRoundTripTime;
}

uint32_t enet_peer_get_lastsendtime(const ENetPeer* peer) {
	return peer->lastSendTime;
}

uint32_t enet_peer_get_lastreceivetime(const ENetPeer* peer) {
	return peer->lastReceiveTime;
}

uint64_t enet_peer_get_packets_sent(const ENetPeer* peer) {
	return peer->totalPacketsSent;
}

uint64_t enet_peer_get_packets_lost(const ENetPeer* peer) {
	return peer->totalPacketsLost;
}

uint64_t enet_peer_get_bytes_sent(const ENetPeer* peer) {
	return peer->totalDataSent;
}

uint64_t enet_peer_get_bytes_received(const ENetPeer* peer) {
	return peer->totalDataReceived;
}

void* enet_peer_get_data(const ENetPeer* peer) {
	return (void*)peer->data;
}

void enet_peer_set_data(ENetPeer* peer, const void* data) {
	peer->data = (uint32_t*)data;
}

#ifdef _MSC_VER
#pragma warning(pop)
#endif

#endif // ENET_IMPLEMENTATION

#endif // ENET_H