mirror of
https://github.com/Ed94/Odin.git
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177 lines
5.5 KiB
Odin
177 lines
5.5 KiB
Odin
package os
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OS :: "essence";
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// foreign import api "system:api"
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// Handle :: distinct int;
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// Errno :: distinct int;
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// O_RDONLY :: 0x00001;
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// O_WRONLY :: 0x00002;
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// O_RDWR :: 0x00003;
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// O_CREATE :: 0x00040;
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// O_EXCL :: 0x00080;
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// O_TRUNC :: 0x00200;
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// O_APPEND :: 0x00400;
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// ERROR_NONE : Errno : -1 ;
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// ERROR_UNKNOWN_OPERATION_FAILURE : Errno : -7 ;
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// ERROR_PATH_NOT_WITHIN_MOUNTED_VOLUME : Errno : -14;
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// ERROR_PATH_NOT_FOUND : Errno : -15;
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// ERROR_FILE_EXISTS : Errno : -19;
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// ERROR_FILE_NOT_FOUND : Errno : -20;
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// ERROR_DRIVE_ERROR_FILE_DAMAGED : Errno : -21;
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// ERROR_ACCESS_NOT_WITHIN_FILE_BOUNDS : Errno : -22;
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// ERROR_ACCESS_DENIED : Errno : -23;
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// ERROR_FILE_IN_EXCLUSIVE_USE : Errno : -24;
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// ERROR_FILE_CANNOT_GET_EXCLUSIVE_USE : Errno : -25;
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// ERROR_INCORRECT_NODE_TYPE : Errno : -26;
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// ERROR_EVENT_NOT_SET : Errno : -27;
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// ERROR_TIMEOUT_REACHED : Errno : -29;
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// ERROR_REQUEST_CLOSED_BEFORE_COMPLETE : Errno : -30;
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// ERROR_NO_CHARACTER_AT_COORDINATE : Errno : -31;
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// ERROR_FILE_ON_READ_ONLY_VOLUME : Errno : -32;
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// ERROR_USER_CANCELED_IO : Errno : -33;
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// ERROR_DRIVE_CONTROLLER_REPORTED : Errno : -35;
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// ERROR_COULD_NOT_ISSUE_PACKET : Errno : -36;
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// ERROR_NOT_IMPLEMENTED : Errno : 1;
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// OS_Node_Type :: enum i32 {
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// File = 0,
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// Directory = 1,
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// }
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// OS_Node_Information :: struct {
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// handle: Handle,
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// id: [16]byte,
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// ntype: OS_Node_Type,
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// size: i64,
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// // Our additions...
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// position: i64,
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// }
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// foreign api {
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// @(link_name="OSPrintDirect") OSPrintDirect :: proc(str: ^u8, length: int) ---;
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// @(link_name="malloc") OSMalloc :: proc(bytes: int) -> rawptr ---;
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// @(link_name="free") OSFree :: proc(address: rawptr) ---;
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// @(link_name="OSOpenNode") OSOpenNode :: proc(path: ^u8, path_length: int, flags: u64, information: ^OS_Node_Information) -> Errno ---;
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// @(link_name="OSResizeFile") OSResizeFile :: proc(handle: Handle, new_size: u64) -> Errno ---;
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// @(link_name="OSCloseHandle") OSCloseHandle :: proc(handle: Handle) ---;
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// @(link_name="OSWriteFileSync") OSWriteFileSync :: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
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// @(link_name="OSReadFileSync") OSReadFileSync :: proc(handle: Handle, offset: i64, size: i64, buffer: rawptr) -> i64 ---;
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// @(link_name="realloc") OSRealloc :: proc(address: rawptr, size: int) -> rawptr ---;
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// @(link_name="OSGetThreadID") OSGetThreadID :: proc(handle: Handle) -> int ---;
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// @(link_name="OSRefreshNodeInformation") OSRefreshNodeInformation :: proc(information: ^OS_Node_Information) ---;
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// }
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// stdin := Handle(-1); // Not implemented
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// stdout := Handle(0);
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// stderr := Handle(0);
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// current_thread_id :: proc() -> int {
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// return OSGetThreadID(Handle(0x1000));
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// }
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// heap_alloc :: proc(size: int) -> rawptr {
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// return OSMalloc(size);
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// }
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// heap_free :: proc(address: rawptr) {
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// OSFree(address);
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// }
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// heap_resize :: proc(address: rawptr, new_size: int) -> rawptr {
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// return OSRealloc(address, new_size);
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// }
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// open :: proc(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
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// flags : u64 = 0;
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// if mode & O_CREATE == O_CREATE {
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// flags = flags | 0x9000; // Fail if found and create directories leading to the file if they don't exist
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// } else {
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// flags = flags | 0x2000; // Fail if not found
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// }
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// if mode & O_EXCL == O_EXCL {
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// flags = flags | 0x111; // Block opening the node for any reason
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// }
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// if mode & O_RDONLY == O_RDONLY {
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// flags = flags | 0x2; // Read access
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// }
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// if mode & O_WRONLY == O_WRONLY {
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// flags = flags | 0x220; // Write and resize access
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// }
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// if mode & O_TRUNC == O_TRUNC {
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// flags = flags | 0x200; // Resize access
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// }
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// information := new(OS_Node_Information);
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// error := OSOpenNode(&path[0], len(path), flags, information);
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// if error < ERROR_NONE {
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// free(information);
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// return 0, error;
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// }
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// if mode & O_TRUNC == O_TRUNC {
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// error := OSResizeFile(information.handle, 0);
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// if error < ERROR_NONE do return 0, ERROR_UNKNOWN_OPERATION_FAILURE;
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// }
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// if mode & O_APPEND == O_APPEND {
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// information.position = information.size;
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// } else {
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// information.position = 0;
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// }
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// return Handle(uintptr(information)), ERROR_NONE;
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// }
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// close :: proc(fd: Handle) {
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// information := (^OS_Node_Information)(uintptr(fd));
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// OSCloseHandle(information.handle);
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// free(information);
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// }
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// file_size :: proc(fd: Handle) -> (i64, Errno) {
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// x : OS_Node_Information;
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// OSRefreshNodeInformation(&x);
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// return x.size, ERROR_NONE;
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// }
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// write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
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// if fd == 0 {
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// OSPrintDirect(&data[0], len(data));
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// return len(data), ERROR_NONE;
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// } else if fd == 1 {
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// assert(false);
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// return 0, ERROR_NOT_IMPLEMENTED;
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// }
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// information := (^OS_Node_Information)(uintptr(fd));
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// count := OSWriteFileSync(information.handle, information.position, i64(len(data)), &data[0]);
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// if count < 0 do return 0, 1;
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// information.position += count;
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// return int(count), 0;
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// }
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// read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
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// if (fd == 0 || fd == 1) {
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// assert(false);
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// return 0, ERROR_NOT_IMPLEMENTED;
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// }
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// information := (^OS_Node_Information)(uintptr(fd));
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// count := OSReadFileSync(information.handle, information.position, i64(len(data)), &data[0]);
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// if count < 0 do return 0, ERROR_UNKNOWN_OPERATION_FAILURE;
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// information.position += count;
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// return int(count), ERROR_NONE;
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// }
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