godot/thirdparty/libwebsockets/lib/plat/windows/windows-init.c

/*
 * libwebsockets - small server side websockets and web server implementation
 *
 * Copyright (C) 2010 - 2018 Andy Green <[email protected]>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation:
 *  version 2.1 of the License.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA  02110-1301  USA
 */

#ifndef _WINSOCK_DEPRECATED_NO_WARNINGS
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#endif
#include "core/private.h"

void
lws_plat_drop_app_privileges(const struct lws_context_creation_info *info)
{
}

int
lws_plat_context_early_init(void)
{
	WORD wVersionRequested;
	WSADATA wsaData;
	int err;

	/* Use the MAKEWORD(lowbyte, highbyte) macro from Windef.h */
	wVersionRequested = MAKEWORD(2, 2);

	err = WSAStartup(wVersionRequested, &wsaData);
	if (!err)
		return 0;
	/*
	 * Tell the user that we could not find a usable
	 * Winsock DLL
	 */
	lwsl_err("WSAStartup failed with error: %d\n", err);

	return 1;
}

int
lws_plat_init(struct lws_context *context,
	      const struct lws_context_creation_info *info)
{
	struct lws_context_per_thread *pt = &context->pt[0];
	int i, n = context->count_threads;

	for (i = 0; i < FD_HASHTABLE_MODULUS; i++) {
		context->fd_hashtable[i].wsi =
			lws_zalloc(sizeof(struct lws*) * context->max_fds,
				   "win hashtable");

		if (!context->fd_hashtable[i].wsi)
			return -1;
	}

	while (n--) {
		pt->fds_count = 0;
		pt->events = WSACreateEvent(); /* the cancel event */

		pt++;
	}

	context->fd_random = 0;

#ifdef LWS_WITH_PLUGINS
	if (info->plugin_dirs)
		lws_plat_plugins_init(context, info->plugin_dirs);
#endif

	return 0;
}

void
lws_plat_context_early_destroy(struct lws_context *context)
{
	struct lws_context_per_thread *pt = &context->pt[0];
	int n = context->count_threads;

	while (n--) {
		WSACloseEvent(pt->events);
		pt++;
	}
}

void
lws_plat_context_late_destroy(struct lws_context *context)
{
	int n;

	for (n = 0; n < FD_HASHTABLE_MODULUS; n++) {
		if (context->fd_hashtable[n].wsi)
			lws_free(context->fd_hashtable[n].wsi);
	}

	WSACleanup();
}