package os foreign import dl "system:dl" foreign import libc "System.framework" foreign import pthread "System.framework" import "core:runtime" import "core:strings" import "core:c" Handle :: distinct i32 File_Time :: distinct u64 Errno :: distinct int INVALID_HANDLE :: ~Handle(0) ERROR_NONE: Errno : 0 EPERM: Errno : 1 /* Operation not permitted */ ENOENT: Errno : 2 /* No such file or directory */ ESRCH: Errno : 3 /* No such process */ EINTR: Errno : 4 /* Interrupted system call */ EIO: Errno : 5 /* Input/output error */ ENXIO: Errno : 6 /* Device not configured */ E2BIG: Errno : 7 /* Argument list too long */ ENOEXEC: Errno : 8 /* Exec format error */ EBADF: Errno : 9 /* Bad file descriptor */ ECHILD: Errno : 10 /* No child processes */ EDEADLK: Errno : 11 /* Resource deadlock avoided */ ENOMEM: Errno : 12 /* Cannot allocate memory */ EACCES: Errno : 13 /* Permission denied */ EFAULT: Errno : 14 /* Bad address */ ENOTBLK: Errno : 15 /* Block device required */ EBUSY: Errno : 16 /* Device / Resource busy */ EEXIST: Errno : 17 /* File exists */ EXDEV: Errno : 18 /* Cross-device link */ ENODEV: Errno : 19 /* Operation not supported by device */ ENOTDIR: Errno : 20 /* Not a directory */ EISDIR: Errno : 21 /* Is a directory */ EINVAL: Errno : 22 /* Invalid argument */ ENFILE: Errno : 23 /* Too many open files in system */ EMFILE: Errno : 24 /* Too many open files */ ENOTTY: Errno : 25 /* Inappropriate ioctl for device */ ETXTBSY: Errno : 26 /* Text file busy */ EFBIG: Errno : 27 /* File too large */ ENOSPC: Errno : 28 /* No space left on device */ ESPIPE: Errno : 29 /* Illegal seek */ EROFS: Errno : 30 /* Read-only file system */ EMLINK: Errno : 31 /* Too many links */ EPIPE: Errno : 32 /* Broken pipe */ /* math software */ EDOM: Errno : 33 /* Numerical argument out of domain */ ERANGE: Errno : 34 /* Result too large */ /* non-blocking and interrupt i/o */ EAGAIN: Errno : 35 /* Resource temporarily unavailable */ EWOULDBLOCK: Errno : EAGAIN /* Operation would block */ EINPROGRESS: Errno : 36 /* Operation now in progress */ EALREADY: Errno : 37 /* Operation already in progress */ /* ipc/network software -- argument errors */ ENOTSOCK: Errno : 38 /* Socket operation on non-socket */ EDESTADDRREQ: Errno : 39 /* Destination address required */ EMSGSIZE: Errno : 40 /* Message too long */ EPROTOTYPE: Errno : 41 /* Protocol wrong type for socket */ ENOPROTOOPT: Errno : 42 /* Protocol not available */ EPROTONOSUPPORT: Errno : 43 /* Protocol not supported */ ESOCKTNOSUPPORT: Errno : 44 /* Socket type not supported */ ENOTSUP: Errno : 45 /* Operation not supported */ EPFNOSUPPORT: Errno : 46 /* Protocol family not supported */ EAFNOSUPPORT: Errno : 47 /* Address family not supported by protocol family */ EADDRINUSE: Errno : 48 /* Address already in use */ EADDRNOTAVAIL: Errno : 49 /* Can't assign requested address */ /* ipc/network software -- operational errors */ ENETDOWN: Errno : 50 /* Network is down */ ENETUNREACH: Errno : 51 /* Network is unreachable */ ENETRESET: Errno : 52 /* Network dropped connection on reset */ ECONNABORTED: Errno : 53 /* Software caused connection abort */ ECONNRESET: Errno : 54 /* Connection reset by peer */ ENOBUFS: Errno : 55 /* No buffer space available */ EISCONN: Errno : 56 /* Socket is already connected */ ENOTCONN: Errno : 57 /* Socket is not connected */ ESHUTDOWN: Errno : 58 /* Can't send after socket shutdown */ ETOOMANYREFS: Errno : 59 /* Too many references: can't splice */ ETIMEDOUT: Errno : 60 /* Operation timed out */ ECONNREFUSED: Errno : 61 /* Connection refused */ ELOOP: Errno : 62 /* Too many levels of symbolic links */ ENAMETOOLONG: Errno : 63 /* File name too long */ /* should be rearranged */ EHOSTDOWN: Errno : 64 /* Host is down */ EHOSTUNREACH: Errno : 65 /* No route to host */ ENOTEMPTY: Errno : 66 /* Directory not empty */ /* quotas & mush */ EPROCLIM: Errno : 67 /* Too many processes */ EUSERS: Errno : 68 /* Too many users */ EDQUOT: Errno : 69 /* Disc quota exceeded */ /* Network File System */ ESTALE: Errno : 70 /* Stale NFS file handle */ EREMOTE: Errno : 71 /* Too many levels of remote in path */ EBADRPC: Errno : 72 /* RPC struct is bad */ ERPCMISMATCH: Errno : 73 /* RPC version wrong */ EPROGUNAVAIL: Errno : 74 /* RPC prog. not avail */ EPROGMISMATCH: Errno : 75 /* Program version wrong */ EPROCUNAVAIL: Errno : 76 /* Bad procedure for program */ ENOLCK: Errno : 77 /* No locks available */ ENOSYS: Errno : 78 /* Function not implemented */ EFTYPE: Errno : 79 /* Inappropriate file type or format */ EAUTH: Errno : 80 /* Authentication error */ ENEEDAUTH: Errno : 81 /* Need authenticator */ /* Intelligent device errors */ EPWROFF: Errno : 82 /* Device power is off */ EDEVERR: Errno : 83 /* Device error, e.g. paper out */ EOVERFLOW: Errno : 84 /* Value too large to be stored in data type */ /* Program loading errors */ EBADEXEC: Errno : 85 /* Bad executable */ EBADARCH: Errno : 86 /* Bad CPU type in executable */ ESHLIBVERS: Errno : 87 /* Shared library version mismatch */ EBADMACHO: Errno : 88 /* Malformed Macho file */ ECANCELED: Errno : 89 /* Operation canceled */ EIDRM: Errno : 90 /* Identifier removed */ ENOMSG: Errno : 91 /* No message of desired type */ EILSEQ: Errno : 92 /* Illegal byte sequence */ ENOATTR: Errno : 93 /* Attribute not found */ EBADMSG: Errno : 94 /* Bad message */ EMULTIHOP: Errno : 95 /* Reserved */ ENODATA: Errno : 96 /* No message available on STREAM */ ENOLINK: Errno : 97 /* Reserved */ ENOSR: Errno : 98 /* No STREAM resources */ ENOSTR: Errno : 99 /* Not a STREAM */ EPROTO: Errno : 100 /* Protocol error */ ETIME: Errno : 101 /* STREAM ioctl timeout */ ENOPOLICY: Errno : 103 /* No such policy registered */ ENOTRECOVERABLE: Errno : 104 /* State not recoverable */ EOWNERDEAD: Errno : 105 /* Previous owner died */ EQFULL: Errno : 106 /* Interface output queue is full */ ELAST: Errno : 106 /* Must be equal largest errno */ O_RDONLY :: 0x0000 O_WRONLY :: 0x0001 O_RDWR :: 0x0002 O_CREATE :: 0x0200 O_EXCL :: 0x0800 O_NOCTTY :: 0 O_TRUNC :: 0x0400 O_NONBLOCK :: 0x0004 O_APPEND :: 0x0008 O_SYNC :: 0x0080 O_ASYNC :: 0x0040 O_CLOEXEC :: 0x1000000 SEEK_DATA :: 3 SEEK_HOLE :: 4 SEEK_MAX :: SEEK_HOLE // NOTE(zangent): These are OS specific! // Do not mix these up! RTLD_LAZY :: 0x1 RTLD_NOW :: 0x2 RTLD_LOCAL :: 0x4 RTLD_GLOBAL :: 0x8 RTLD_NODELETE :: 0x80 RTLD_NOLOAD :: 0x10 RTLD_FIRST :: 0x100 // "Argv" arguments converted to Odin strings args := _alloc_command_line_arguments() Unix_File_Time :: struct { seconds: i64, nanoseconds: i64, } OS_Stat :: struct { device_id: i32, // ID of device containing file mode: u16, // Mode of the file nlink: u16, // Number of hard links serial: u64, // File serial number uid: u32, // User ID of the file's owner gid: u32, // Group ID of the file's group rdev: i32, // Device ID, if device last_access: Unix_File_Time, // Time of last access modified: Unix_File_Time, // Time of last modification status_change: Unix_File_Time, // Time of last status change created: Unix_File_Time, // Time of creation size: i64, // Size of the file, in bytes blocks: i64, // Number of blocks allocated for the file block_size: i32, // Optimal blocksize for I/O flags: u32, // User-defined flags for the file gen_num: u32, // File generation number ..? _spare: i32, // RESERVED _reserve1, _reserve2: i64, // RESERVED } DARWIN_MAXPATHLEN :: 1024 Dirent :: struct { ino: u64, off: u64, reclen: u16, namlen: u16, type: u8, name: [DARWIN_MAXPATHLEN]byte, } Dir :: distinct rawptr // DIR* // File type S_IFMT :: 0o170000 // Type of file mask S_IFIFO :: 0o010000 // Named pipe (fifo) S_IFCHR :: 0o020000 // Character special S_IFDIR :: 0o040000 // Directory S_IFBLK :: 0o060000 // Block special S_IFREG :: 0o100000 // Regular S_IFLNK :: 0o120000 // Symbolic link S_IFSOCK :: 0o140000 // Socket // File mode // Read, write, execute/search by owner S_IRWXU :: 0o0700 // RWX mask for owner S_IRUSR :: 0o0400 // R for owner S_IWUSR :: 0o0200 // W for owner S_IXUSR :: 0o0100 // X for owner // Read, write, execute/search by group S_IRWXG :: 0o0070 // RWX mask for group S_IRGRP :: 0o0040 // R for group S_IWGRP :: 0o0020 // W for group S_IXGRP :: 0o0010 // X for group // Read, write, execute/search by others S_IRWXO :: 0o0007 // RWX mask for other S_IROTH :: 0o0004 // R for other S_IWOTH :: 0o0002 // W for other S_IXOTH :: 0o0001 // X for other S_ISUID :: 0o4000 // Set user id on execution S_ISGID :: 0o2000 // Set group id on execution S_ISVTX :: 0o1000 // Directory restrcted delete S_ISLNK :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFLNK } S_ISREG :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFREG } S_ISDIR :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFDIR } S_ISCHR :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFCHR } S_ISBLK :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFBLK } S_ISFIFO :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFIFO } S_ISSOCK :: #force_inline proc(m: u16) -> bool { return (m & S_IFMT) == S_IFSOCK } R_OK :: 4 // Test for read permission W_OK :: 2 // Test for write permission X_OK :: 1 // Test for execute permission F_OK :: 0 // Test for file existance F_GETPATH :: 50 // return the full path of the fd foreign libc { @(link_name="__error") __error :: proc() -> ^int --- @(link_name="open") _unix_open :: proc(path: cstring, flags: i32, mode: u16) -> Handle --- @(link_name="close") _unix_close :: proc(handle: Handle) -> c.int --- @(link_name="read") _unix_read :: proc(handle: Handle, buffer: rawptr, count: int) -> int --- @(link_name="write") _unix_write :: proc(handle: Handle, buffer: rawptr, count: int) -> int --- @(link_name="lseek") _unix_lseek :: proc(fs: Handle, offset: int, whence: int) -> int --- @(link_name="gettid") _unix_gettid :: proc() -> u64 --- @(link_name="getpagesize") _unix_getpagesize :: proc() -> i32 --- @(link_name="stat64") _unix_stat :: proc(path: cstring, stat: ^OS_Stat) -> c.int --- @(link_name="lstat64") _unix_lstat :: proc(path: cstring, stat: ^OS_Stat) -> c.int --- @(link_name="fstat64") _unix_fstat :: proc(fd: Handle, stat: ^OS_Stat) -> c.int --- @(link_name="readlink") _unix_readlink :: proc(path: cstring, buf: ^byte, bufsiz: c.size_t) -> c.ssize_t --- @(link_name="access") _unix_access :: proc(path: cstring, mask: int) -> int --- @(link_name="fdopendir$INODE64") _unix_fdopendir_amd64 :: proc(fd: Handle) -> Dir --- @(link_name="readdir_r$INODE64") _unix_readdir_r_amd64 :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int --- @(link_name="fdopendir") _unix_fdopendir_arm64 :: proc(fd: Handle) -> Dir --- @(link_name="readdir_r") _unix_readdir_r_arm64 :: proc(dirp: Dir, entry: ^Dirent, result: ^^Dirent) -> c.int --- @(link_name="closedir") _unix_closedir :: proc(dirp: Dir) -> c.int --- @(link_name="rewinddir") _unix_rewinddir :: proc(dirp: Dir) --- @(link_name="__fcntl") _unix__fcntl :: proc(fd: Handle, cmd: c.int, buf: ^byte) -> c.int --- @(link_name="rename") _unix_rename :: proc(old: cstring, new: cstring) -> c.int --- @(link_name="remove") _unix_remove :: proc(path: cstring) -> c.int --- @(link_name="fchmod") _unix_fchmod :: proc(fd: Handle, mode: u16) -> c.int --- @(link_name="malloc") _unix_malloc :: proc(size: int) -> rawptr --- @(link_name="calloc") _unix_calloc :: proc(num, size: int) -> rawptr --- @(link_name="free") _unix_free :: proc(ptr: rawptr) --- @(link_name="realloc") _unix_realloc :: proc(ptr: rawptr, size: int) -> rawptr --- @(link_name="getenv") _unix_getenv :: proc(cstring) -> cstring --- @(link_name="getcwd") _unix_getcwd :: proc(buf: cstring, len: c.size_t) -> cstring --- @(link_name="chdir") _unix_chdir :: proc(buf: cstring) -> c.int --- @(link_name="mkdir") _unix_mkdir :: proc(buf: cstring, mode: u16) -> c.int --- @(link_name="realpath") _unix_realpath :: proc(path: cstring, resolved_path: rawptr) -> rawptr --- @(link_name="strerror") _darwin_string_error :: proc(num : c.int) -> cstring --- @(link_name="sysctlbyname") _sysctlbyname :: proc(path: cstring, oldp: rawptr, oldlenp: rawptr, newp: rawptr, newlen: int) -> c.int --- @(link_name="exit") _unix_exit :: proc(status: c.int) -> ! --- } when ODIN_ARCH != .arm64 { _unix_fdopendir :: proc {_unix_fdopendir_amd64} _unix_readdir_r :: proc {_unix_readdir_r_amd64} } else { _unix_fdopendir :: proc {_unix_fdopendir_arm64} _unix_readdir_r :: proc {_unix_readdir_r_arm64} } foreign dl { @(link_name="dlopen") _unix_dlopen :: proc(filename: cstring, flags: int) -> rawptr --- @(link_name="dlsym") _unix_dlsym :: proc(handle: rawptr, symbol: cstring) -> rawptr --- @(link_name="dlclose") _unix_dlclose :: proc(handle: rawptr) -> int --- @(link_name="dlerror") _unix_dlerror :: proc() -> cstring --- } get_last_error :: proc "contextless" () -> int { return __error()^ } get_last_error_string :: proc() -> string { return cast(string)_darwin_string_error(cast(c.int)get_last_error()) } open :: proc(path: string, flags: int = O_RDWR, mode: int = 0) -> (Handle, Errno) { isDir := is_dir_path(path) flags := flags if isDir { /* @INFO(Platin): To make it impossible to use the wrong flag for dir's as you can't write to a dir only read which makes it fail to open */ flags = O_RDONLY } cstr := strings.clone_to_cstring(path, context.temp_allocator) handle := _unix_open(cstr, i32(flags), u16(mode)) if handle == -1 { return INVALID_HANDLE, cast(Errno)get_last_error() } /* @INFO(Platin): this is only done because O_CREATE for some reason fails to apply mode should not happen if the handle is a directory */ if mode != 0 && !isDir { err := fchmod(handle, cast(u16)mode) if err != 0 { _unix_close(handle) return INVALID_HANDLE, cast(Errno)err } } return handle, 0 } fchmod :: proc(fd: Handle, mode: u16) -> Errno { return cast(Errno)_unix_fchmod(fd, mode) } close :: proc(fd: Handle) -> bool { return _unix_close(fd) == 0 } @(private) MAX_RW :: 0x7fffffff // The limit on Darwin is max(i32), trying to read/write more than that fails. write :: proc(fd: Handle, data: []u8) -> (int, Errno) { assert(fd != -1) bytes_total := len(data) bytes_written_total := 0 for bytes_written_total < bytes_total { bytes_to_write := min(bytes_total - bytes_written_total, MAX_RW) slice := data[bytes_written_total:bytes_written_total + bytes_to_write] bytes_written := _unix_write(fd, raw_data(slice), bytes_to_write) if bytes_written == -1 { return bytes_written_total, 1 } bytes_written_total += bytes_written } return bytes_written_total, 0 } read :: proc(fd: Handle, data: []u8) -> (int, Errno) { assert(fd != -1) bytes_total := len(data) bytes_read_total := 0 for bytes_read_total < bytes_total { bytes_to_read := min(bytes_total - bytes_read_total, MAX_RW) slice := data[bytes_read_total:bytes_read_total + bytes_to_read] bytes_read := _unix_read(fd, raw_data(slice), bytes_to_read) if bytes_read == -1 { return bytes_read_total, 1 } if bytes_read == 0 { break } bytes_read_total += bytes_read } return bytes_read_total, 0 } seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) { assert(fd != -1) final_offset := i64(_unix_lseek(fd, int(offset), whence)) if final_offset == -1 { return 0, 1 } return final_offset, 0 } file_size :: proc(fd: Handle) -> (i64, Errno) { prev, _ := seek(fd, 0, SEEK_CUR) size, err := seek(fd, 0, SEEK_END) seek(fd, prev, SEEK_SET) return i64(size), err } // NOTE(bill): Uses startup to initialize it stdin: Handle = 0 // get_std_handle(win32.STD_INPUT_HANDLE); stdout: Handle = 1 // get_std_handle(win32.STD_OUTPUT_HANDLE); stderr: Handle = 2 // get_std_handle(win32.STD_ERROR_HANDLE); /* TODO(zangent): Implement these! last_write_time :: proc(fd: Handle) -> File_Time {} last_write_time_by_name :: proc(name: string) -> File_Time {} */ is_path_separator :: proc(r: rune) -> bool { return r == '/' } is_file_handle :: proc(fd: Handle) -> bool { s, err := _fstat(fd) if err != ERROR_NONE { return false } return S_ISREG(s.mode) } is_file_path :: proc(path: string, follow_links: bool = true) -> bool { s: OS_Stat err: Errno if follow_links { s, err = _stat(path) } else { s, err = _lstat(path) } if err != ERROR_NONE { return false } return S_ISREG(s.mode) } is_dir_handle :: proc(fd: Handle) -> bool { s, err := _fstat(fd) if err != ERROR_NONE { return false } return S_ISDIR(s.mode) } is_dir_path :: proc(path: string, follow_links: bool = true) -> bool { s: OS_Stat err: Errno if follow_links { s, err = _stat(path) } else { s, err = _lstat(path) } if err != ERROR_NONE { return false } return S_ISDIR(s.mode) } is_file :: proc {is_file_path, is_file_handle} is_dir :: proc {is_dir_path, is_dir_handle} exists :: proc(path: string) -> bool { cpath := strings.clone_to_cstring(path, context.temp_allocator) res := _unix_access(cpath, O_RDONLY) return res == 0 } rename :: proc(old: string, new: string) -> bool { old_cstr := strings.clone_to_cstring(old, context.temp_allocator) new_cstr := strings.clone_to_cstring(new, context.temp_allocator) return _unix_rename(old_cstr, new_cstr) != -1 } remove :: proc(path: string) -> bool { path_cstr := strings.clone_to_cstring(path, context.temp_allocator) return _unix_remove(path_cstr) != -1 } @private _stat :: proc(path: string) -> (OS_Stat, Errno) { cstr := strings.clone_to_cstring(path, context.temp_allocator) s: OS_Stat result := _unix_stat(cstr, &s) if result == -1 { return s, Errno(get_last_error()) } return s, ERROR_NONE } @private _lstat :: proc(path: string) -> (OS_Stat, Errno) { cstr := strings.clone_to_cstring(path, context.temp_allocator) s: OS_Stat result := _unix_lstat(cstr, &s) if result == -1 { return s, Errno(get_last_error()) } return s, ERROR_NONE } @private _fstat :: proc(fd: Handle) -> (OS_Stat, Errno) { s: OS_Stat result := _unix_fstat(fd, &s) if result == -1 { return s, Errno(get_last_error()) } return s, ERROR_NONE } @private _fdopendir :: proc(fd: Handle) -> (Dir, Errno) { dirp := _unix_fdopendir(fd) if dirp == cast(Dir)nil { return nil, Errno(get_last_error()) } return dirp, ERROR_NONE } @private _closedir :: proc(dirp: Dir) -> Errno { rc := _unix_closedir(dirp) if rc != 0 { return Errno(get_last_error()) } return ERROR_NONE } @private _rewinddir :: proc(dirp: Dir) { _unix_rewinddir(dirp) } @private _readdir :: proc(dirp: Dir) -> (entry: Dirent, err: Errno, end_of_stream: bool) { result: ^Dirent rc := _unix_readdir_r(dirp, &entry, &result) if rc != 0 { err = Errno(get_last_error()) return } err = ERROR_NONE if result == nil { end_of_stream = true return } end_of_stream = false return } @private _readlink :: proc(path: string) -> (string, Errno) { path_cstr := strings.clone_to_cstring(path, context.temp_allocator) bufsz : uint = 256 buf := make([]byte, bufsz) for { rc := _unix_readlink(path_cstr, &(buf[0]), bufsz) if rc == -1 { delete(buf) return "", Errno(get_last_error()) } else if rc == int(bufsz) { // NOTE(laleksic, 2021-01-21): Any cleaner way to resize the slice? bufsz *= 2 delete(buf) buf = make([]byte, bufsz) } else { return strings.string_from_ptr(&buf[0], rc), ERROR_NONE } } } absolute_path_from_handle :: proc(fd: Handle) -> (string, Errno) { buf : [256]byte res := _unix__fcntl(fd, F_GETPATH, &buf[0]) if res != 0 { return "", Errno(get_last_error()) } path := strings.clone_from_cstring(cstring(&buf[0])) return path, ERROR_NONE } absolute_path_from_relative :: proc(rel: string) -> (path: string, err: Errno) { rel := rel if rel == "" { rel = "." } rel_cstr := strings.clone_to_cstring(rel, context.temp_allocator) path_ptr := _unix_realpath(rel_cstr, nil) if path_ptr == nil { return "", Errno(get_last_error()) } defer _unix_free(path_ptr) path_cstr := transmute(cstring)path_ptr path = strings.clone( string(path_cstr) ) return path, ERROR_NONE } access :: proc(path: string, mask: int) -> bool { cstr := strings.clone_to_cstring(path, context.temp_allocator) return _unix_access(cstr, mask) == 0 } heap_alloc :: proc(size: int, zero_memory := true) -> rawptr { if size <= 0 { return nil } if zero_memory { return _unix_calloc(1, size) } else { return _unix_malloc(size) } } heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr { // NOTE: _unix_realloc doesn't guarantee new memory will be zeroed on // POSIX platforms. Ensure your caller takes this into account. return _unix_realloc(ptr, new_size) } heap_free :: proc(ptr: rawptr) { _unix_free(ptr) } lookup_env :: proc(key: string, allocator := context.allocator) -> (value: string, found: bool) { path_str := strings.clone_to_cstring(key, context.temp_allocator) cstr := _unix_getenv(path_str) if cstr == nil { return "", false } return strings.clone(string(cstr), allocator), true } get_env :: proc(key: string, allocator := context.allocator) -> (value: string) { value, _ = lookup_env(key, allocator) return } get_current_directory :: proc() -> string { page_size := get_page_size() // NOTE(tetra): See note in os_linux.odin/get_current_directory. buf := make([dynamic]u8, page_size) for { cwd := _unix_getcwd(cstring(raw_data(buf)), c.size_t(len(buf))) if cwd != nil { return string(cwd) } if Errno(get_last_error()) != ERANGE { return "" } resize(&buf, len(buf)+page_size) } unreachable() } set_current_directory :: proc(path: string) -> (err: Errno) { cstr := strings.clone_to_cstring(path, context.temp_allocator) res := _unix_chdir(cstr) if res == -1 { return Errno(get_last_error()) } return ERROR_NONE } make_directory :: proc(path: string, mode: u16 = 0o775) -> Errno { path_cstr := strings.clone_to_cstring(path, context.temp_allocator) res := _unix_mkdir(path_cstr, mode) if res == -1 { return Errno(get_last_error()) } return ERROR_NONE } exit :: proc "contextless" (code: int) -> ! { runtime._cleanup_runtime_contextless() _unix_exit(i32(code)) } current_thread_id :: proc "contextless" () -> int { tid: u64 // NOTE(Oskar): available from OSX 10.6 and iOS 3.2. // For older versions there is `syscall(SYS_thread_selfid)`, but not really // the same thing apparently. foreign pthread { pthread_threadid_np :: proc "c" (rawptr, ^u64) -> c.int --- } pthread_threadid_np(nil, &tid) return int(tid) } dlopen :: proc(filename: string, flags: int) -> rawptr { cstr := strings.clone_to_cstring(filename, context.temp_allocator) handle := _unix_dlopen(cstr, flags) return handle } dlsym :: proc(handle: rawptr, symbol: string) -> rawptr { assert(handle != nil) cstr := strings.clone_to_cstring(symbol, context.temp_allocator) proc_handle := _unix_dlsym(handle, cstr) return proc_handle } dlclose :: proc(handle: rawptr) -> bool { assert(handle != nil) return _unix_dlclose(handle) == 0 } dlerror :: proc() -> string { return string(_unix_dlerror()) } get_page_size :: proc() -> int { // NOTE(tetra): The page size never changes, so why do anything complicated // if we don't have to. @static page_size := -1 if page_size != -1 { return page_size } page_size = int(_unix_getpagesize()) return page_size } @(private) _processor_core_count :: proc() -> int { count : int = 0 count_size := size_of(count) if _sysctlbyname("hw.logicalcpu", &count, &count_size, nil, 0) == 0 { if count > 0 { return count } } return 1 } _alloc_command_line_arguments :: proc() -> []string { res := make([]string, len(runtime.args__)) for arg, i in runtime.args__ { res[i] = string(arg) } return res }