Merge pull request #201 from nakst/master

update essence bindings

core/os/essence.odin

@@ -3,10 +3,36 @@ foreign import api "system:api"
 Handle    :: distinct int;
 Errno     :: distinct int;
 
-O_RDONLY   :: 1;
-O_WRONLY   :: 2;
-O_CREATE   :: 4;
-O_TRUNC    :: 4;
+O_RDONLY   :: 0x00001;
+O_WRONLY   :: 0x00002;
+O_RDWR     :: 0x00003;
+O_CREATE   :: 0x00040;
+O_EXCL     :: 0x00080;
+O_TRUNC    :: 0x00200;
+O_APPEND   :: 0x00400;
+
+ERROR_NONE				: Errno : -1 ;
+ERROR_UNKNOWN_OPERATION_FAILURE 	: Errno : -7 ;
+ERROR_PATH_NOT_WITHIN_MOUNTED_VOLUME	: Errno : -14;
+ERROR_PATH_NOT_FOUND			: Errno : -15;
+ERROR_FILE_EXISTS			: Errno : -19;
+ERROR_FILE_NOT_FOUND			: Errno : -20;
+ERROR_DRIVE_ERROR_FILE_DAMAGED		: Errno : -21; 
+ERROR_ACCESS_NOT_WITHIN_FILE_BOUNDS	: Errno : -22; 
+ERROR_ACCESS_DENIED			: Errno : -23;
+ERROR_FILE_IN_EXCLUSIVE_USE		: Errno : -24;
+ERROR_FILE_CANNOT_GET_EXCLUSIVE_USE	: Errno : -25;
+ERROR_INCORRECT_NODE_TYPE		: Errno : -26;
+ERROR_EVENT_NOT_SET			: Errno : -27;
+ERROR_TIMEOUT_REACHED			: Errno : -29;
+ERROR_REQUEST_CLOSED_BEFORE_COMPLETE 	: Errno : -30;
+ERROR_NO_CHARACTER_AT_COORDINATE	: Errno : -31;
+ERROR_FILE_ON_READ_ONLY_VOLUME		: Errno : -32;
+ERROR_USER_CANCELED_IO			: Errno : -33;
+ERROR_DRIVE_CONTROLLER_REPORTED		: Errno : -35;
+ERROR_COULD_NOT_ISSUE_PACKET		: Errno : -36;
+
+ERROR_NOT_IMPLEMENTED			: Errno : 1;
 
 OS_Node_Type :: enum i32 {
 	File      = 0,
@@ -18,22 +44,23 @@ OS_Node_Information :: struct {
 	id:       [16]byte,
 	ntype:    OS_Node_Type,
 	size:     i64,
+
+	// Our additions...
 	position: i64,
 }
 
 foreign api {
-	@(link_name="OSHelloWorld")       os_hello_world       :: proc() ---;
-	@(link_name="OSPrintDirect")      os_print_direct      :: proc(str: cstring, length: int) ---;
-	@(link_name="OSHeapAllocate")     os_heap_allocate     :: proc(bytes: int, zero: bool) -> rawptr ---;
-	@(link_name="OSHeapFree")         os_heap_free         :: proc(address: rawptr) ---;
-	@(link_name="OSOpenNode")         os_open_node         :: proc(path: cstring, path_length: int, flags: u64, information: ^OS_Node_Information) -> Errno ---;
-	@(link_name="OSResizeFile")       os_resize_file       :: proc(handle: Handle, new_size: u64) -> Errno ---;
-	@(link_name="OSCloseHandle")      os_close_handle      :: proc(handle: Handle) ---;
-	@(link_name="OSWriteFileSync")    os_write_file_sync   :: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
-	@(link_name="OSReadFileSync")     os_read_file_sync    :: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
-	@(link_name="OSInitialiseAPI")    os_initialise_api    :: proc() -> int ---;
-	@(link_name="OSTerminateProcess") os_terminate_process :: proc(handle: Handle) ---;
-	@(link_name="realloc")            os_heap_reallocate   :: proc(address: rawptr, size: int) -> rawptr ---;
+	@(link_name="OSPrintDirect")    OSPrintDirect      	:: proc(str: ^u8, length: int) ---;
+	@(link_name="malloc")     	OSMalloc     		:: proc(bytes: int) -> rawptr ---;
+	@(link_name="free")         	OSFree         		:: proc(address: rawptr) ---;
+	@(link_name="OSOpenNode")       OSOpenNode         	:: proc(path: ^u8, path_length: int, flags: u64, information: ^OS_Node_Information) -> Errno ---;
+	@(link_name="OSResizeFile")     OSResizeFile       	:: proc(handle: Handle, new_size: u64) -> Errno ---;
+	@(link_name="OSCloseHandle")    OSCloseHandle      	:: proc(handle: Handle) ---;
+	@(link_name="OSWriteFileSync")  OSWriteFileSync   	:: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
+	@(link_name="OSReadFileSync")   OSReadFileSync    	:: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
+	@(link_name="realloc")          OSRealloc   		:: proc(address: rawptr, size: int) -> rawptr ---;
+	@(link_name="OSGetThreadID") 	OSGetThreadID 		:: proc(handle: Handle) -> int ---;
+	@(link_name="OSRefreshNodeInformation") OSRefreshNodeInformation :: proc(information: ^OS_Node_Information) ---;
 }
 
 stdin  := Handle(-1); // Not implemented
@@ -41,56 +68,91 @@ stdout := Handle(0);
 stderr := Handle(0);
 
 current_thread_id :: proc() -> int {
-	// Not implemented
-	return -1;
+	return OSGetThreadID(Handle(0x1000));
 }
 
 heap_alloc :: proc(size: int) -> rawptr {
-	return os_heap_allocate(size, true);
+	return OSMalloc(size);
 }
 
 heap_free :: proc(address: rawptr) {
-	os_heap_free(address);
+	OSFree(address);
 }
 
 heap_resize :: proc(address: rawptr, new_size: int) -> rawptr {
-	return os_heap_reallocate(address, new_size);
+	return OSRealloc(address, new_size);
 }
 
 open :: proc(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
+	flags : u64 = 0;
+
+	if mode & O_CREATE == O_CREATE {
+		flags = flags | 0x9000; // Fail if found and create directories leading to the file if they don't exist
+	} else {
+		flags = flags | 0x2000; // Fail if not found
+	}
+
+	if mode & O_EXCL == O_EXCL {
+		flags = flags | 0x111; // Block opening the node for any reason
+	}
+
+	if mode & O_RDONLY == O_RDONLY {
+		flags = flags | 0x2; // Read access
+	}
+
+	if mode & O_WRONLY == O_WRONLY {
+		flags = flags | 0x220; // Write and resize access
+	}
+
+	if mode & O_TRUNC == O_TRUNC {
+		flags = flags | 0x200; // Resize access
+	}
+
 	information := new(OS_Node_Information);
-	error := os_open_node(&path[0], len(path), u64(mode), information);
-	if error < -1 do return 0, 1;
-	information.position = 0;
-	if mode&O_TRUNC==O_TRUNC {
-		error := os_resize_file(information.handle, 0);
-		if error < -1 do return 0, 1;
+	error := OSOpenNode(&path[0], len(path), flags, information);
+
+	if error < ERROR_NONE {
+		free(information);
+		return 0, error;
+	}
+
+	if mode & O_TRUNC == O_TRUNC {
+		error := OSResizeFile(information.handle, 0);
+		if error < ERROR_NONE do return 0, ERROR_UNKNOWN_OPERATION_FAILURE;
 	}
-	return Handle(uintptr(information)), 0;
+
+	if mode & O_APPEND == O_APPEND {
+		information.position = information.size;
+	} else {
+		information.position = 0;
+	}
+
+	return Handle(uintptr(information)), ERROR_NONE;
 }
 
 close :: proc(fd: Handle) {
 	information := (^OS_Node_Information)(uintptr(fd));
-	os_close_handle(information.handle);
+	OSCloseHandle(information.handle);
 	free(information);
 }
 
 file_size :: proc(fd: Handle) -> (i64, Errno) {
-	// Not (properly) implemented
-	information := cast(^OS_Node_Information)uintptr(fd);
-	return information.size,0;
+	x : OS_Node_Information;
+	OSRefreshNodeInformation(&x);
+	return x.size, ERROR_NONE;
 }
 
 write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 	if fd == 0 {
-		os_print_direct(&data[0], len(data));
-		return len(data), 0;
+		OSPrintDirect(&data[0], len(data));
+		return len(data), ERROR_NONE;
 	} else if fd == 1 {
 		assert(false);
-		return 0, 1;
+		return 0, ERROR_NOT_IMPLEMENTED;
 	}
+
 	information := (^OS_Node_Information)(uintptr(fd));
-	count := os_write_file_sync(information.handle, information.position, i64(len(data)), &data[0]);
+	count := OSWriteFileSync(information.handle, information.position, i64(len(data)), &data[0]);
 	if count < 0 do  return 0, 1;
 	information.position += count;
 	return int(count), 0;
@@ -99,15 +161,12 @@ write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 	if (fd == 0 || fd == 1) {
 		assert(false);
-		return 0, 1;
+		return 0, ERROR_NOT_IMPLEMENTED;
 	}
+
 	information := (^OS_Node_Information)(uintptr(fd));
-	count := os_read_file_sync(information.handle, information.position, i64(len(data)), &data[0]);
-	if count < 0 do return 0, 1;
+	count := OSReadFileSync(information.handle, information.position, i64(len(data)), &data[0]);
+	if count < 0 do return 0, ERROR_UNKNOWN_OPERATION_FAILURE;
 	information.position += count;
-	return int(count), 0;
-}
-
-os_terminate_this_process :: proc() {
-	os_terminate_process(0x1001);
+	return int(count), ERROR_NONE;
 }

src/main.cpp

@@ -1013,7 +1013,7 @@ int main(int arg_count, char **arg_ptr) {
 			#endif
 			, linker, LIT(output_base), LIT(output_base), output_ext,
 			lib_str,
-			str_eq_ignore_case(cross_compile_target, str_lit("Essence")) ? "" : "-lc -lm",
+			str_eq_ignore_case(cross_compile_target, str_lit("Essence")) ? "-lfreetype -lglue" : "-lc -lm",
 			LIT(build_context.link_flags),
 			link_settings,
 			LIT(cross_compile_lib_dir)