mirror of
https://github.com/Ed94/Odin.git
synced 2026-06-19 12:22:23 -07:00
Ginger Bill
286 lines
8.3 KiB
Odin
286 lines
8.3 KiB
Odin
foreign_system_library (
|
|
dl "dl";
|
|
libc "c";
|
|
)
|
|
|
|
import "strings.odin";
|
|
|
|
type (
|
|
Handle i32;
|
|
FileTime u64;
|
|
Errno int;
|
|
|
|
AddressSize int;
|
|
)
|
|
|
|
const (
|
|
O_RDONLY = 0x00000;
|
|
O_WRONLY = 0x00001;
|
|
O_RDWR = 0x00002;
|
|
O_CREAT = 0x00040;
|
|
O_EXCL = 0x00080;
|
|
O_NOCTTY = 0x00100;
|
|
O_TRUNC = 0x00200;
|
|
O_NONBLOCK = 0x00800;
|
|
O_APPEND = 0x00400;
|
|
O_SYNC = 0x01000;
|
|
O_ASYNC = 0x02000;
|
|
O_CLOEXEC = 0x80000;
|
|
SEEK_SET = 0;
|
|
SEEK_CUR = 1;
|
|
SEEK_END = 2;
|
|
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;
|
|
)
|
|
|
|
var args: [dynamic]string;
|
|
|
|
type _FileTime struct #ordered {
|
|
seconds: i64,
|
|
nanoseconds: i64
|
|
}
|
|
|
|
type Stat struct #ordered {
|
|
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 : FileTime, // Time of last access
|
|
modified : FileTime, // Time of last modification
|
|
status_change : FileTime, // Time of last status change
|
|
created : FileTime, // 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
|
|
};
|
|
|
|
// File type
|
|
const (
|
|
S_IFMT = 0170000; // Type of file mask
|
|
S_IFIFO = 0010000; // Named pipe (fifo)
|
|
S_IFCHR = 0020000; // Character special
|
|
S_IFDIR = 0040000; // Directory
|
|
S_IFBLK = 0060000; // Block special
|
|
S_IFREG = 0100000; // Regular
|
|
S_IFLNK = 0120000; // Symbolic link
|
|
S_IFSOCK = 0140000; // Socket
|
|
|
|
// File mode
|
|
// Read, write, execute/search by owner
|
|
S_IRWXU = 0000700; // RWX mask for owner
|
|
S_IRUSR = 0000400; // R for owner
|
|
S_IWUSR = 0000200; // W for owner
|
|
S_IXUSR = 0000100; // X for owner
|
|
|
|
// Read, write, execute/search by group
|
|
S_IRWXG = 0000070; // RWX mask for group
|
|
S_IRGRP = 0000040; // R for group
|
|
S_IWGRP = 0000020; // W for group
|
|
S_IXGRP = 0000010; // X for group
|
|
|
|
// Read, write, execute/search by others
|
|
S_IRWXO = 0000007; // RWX mask for other
|
|
S_IROTH = 0000004; // R for other
|
|
S_IWOTH = 0000002; // W for other
|
|
S_IXOTH = 0000001; // X for other
|
|
|
|
S_ISUID = 0004000; // Set user id on execution
|
|
S_ISGID = 0002000; // Set group id on execution
|
|
S_ISVTX = 0001000; // Directory restrcted delete
|
|
)
|
|
|
|
proc S_ISLNK (m: u32) -> bool #inline {return (m & S_IFMT) == S_IFLNK; }
|
|
proc S_ISREG (m: u32) -> bool #inline {return (m & S_IFMT) == S_IFREG; }
|
|
proc S_ISDIR (m: u32) -> bool #inline {return (m & S_IFMT) == S_IFDIR; }
|
|
proc S_ISCHR (m: u32) -> bool #inline {return (m & S_IFMT) == S_IFCHR; }
|
|
proc S_ISBLK (m: u32) -> bool #inline {return (m & S_IFMT) == S_IFBLK; }
|
|
proc S_ISFIFO(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFIFO; }
|
|
proc S_ISSOCK(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFSOCK;}
|
|
|
|
const (
|
|
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
|
|
)
|
|
|
|
proc unix_open (path: ^u8, mode: int) -> Handle #foreign libc "open";
|
|
proc unix_close (handle: Handle) #foreign libc "close";
|
|
proc unix_read (handle: Handle, buffer: rawptr, count: int) -> AddressSize #foreign libc "read";
|
|
proc unix_write (handle: Handle, buffer: rawptr, count: int) -> AddressSize #foreign libc "write";
|
|
proc unix_lseek (fs: Handle, offset: AddressSize, whence: int) -> AddressSize #foreign libc "lseek";
|
|
proc unix_gettid() -> u64 #foreign libc "gettid";
|
|
proc unix_stat (path: ^u8, stat: ^Stat) -> int #foreign libc "stat";
|
|
proc unix_access(path: ^u8, mask: int) -> int #foreign libc "access";
|
|
|
|
proc unix_malloc (size: int) -> rawptr #foreign libc "malloc";
|
|
proc unix_free (ptr: rawptr) #foreign libc "free";
|
|
proc unix_realloc(ptr: rawptr, size: int) -> rawptr #foreign libc "realloc";
|
|
proc unix_getenv (^u8) -> ^u8 #foreign libc "getenv";
|
|
|
|
proc unix_exit(status: int) #foreign libc "exit";
|
|
|
|
proc unix_dlopen (filename: ^u8, flags: int) -> rawptr #foreign dl "dlopen";
|
|
proc unix_dlsym (handle: rawptr, symbol: ^u8) -> (proc() #cc_c) #foreign dl "dlsym";
|
|
proc unix_dlclose(handle: rawptr) -> int #foreign dl "dlclose";
|
|
proc unix_dlerror() -> ^u8 #foreign dl "dlerror";
|
|
|
|
|
|
// TODO(zangent): Change this to just `open` when Bill fixes overloading.
|
|
proc open_simple(path: string, mode: int) -> (Handle, Errno) {
|
|
|
|
var cstr = strings.new_c_string(path);
|
|
var handle = unix_open(cstr, mode);
|
|
free(cstr);
|
|
if(handle == -1) {
|
|
return 0, 1;
|
|
}
|
|
return handle, 0;
|
|
}
|
|
|
|
// NOTE(zangent): This is here for compatability reasons. Should this be here?
|
|
proc open(path: string, mode: int, perm: u32) -> (Handle, Errno) {
|
|
return open_simple(path, mode);
|
|
}
|
|
|
|
proc close(fd: Handle) {
|
|
unix_close(fd);
|
|
}
|
|
|
|
proc write(fd: Handle, data: []u8) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
var bytes_written = unix_write(fd, &data[0], len(data));
|
|
if(bytes_written == -1) {
|
|
return 0, 1;
|
|
}
|
|
return bytes_written, 0;
|
|
}
|
|
|
|
proc read(fd: Handle, data: []u8) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
var bytes_read = unix_read(fd, &data[0], len(data));
|
|
if(bytes_read == -1) {
|
|
return 0, 1;
|
|
}
|
|
return bytes_read, 0;
|
|
}
|
|
|
|
proc seek(fd: Handle, offset: AddressSize, whence: int) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
var final_offset = unix_lseek(fd, offset, whence);
|
|
if(final_offset == -1) {
|
|
return 0, 1;
|
|
}
|
|
return final_offset, 0;
|
|
}
|
|
|
|
proc file_size(fd: Handle) -> (i64, Errno) {
|
|
var prev, _ = seek(fd, 0, SEEK_CUR);
|
|
var size, err = seek(fd, 0, SEEK_END);
|
|
seek(fd, prev, SEEK_SET);
|
|
return size, err;
|
|
}
|
|
|
|
|
|
|
|
// NOTE(bill): Uses startup to initialize it
|
|
var (
|
|
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!
|
|
proc last_write_time(fd: Handle) -> FileTime {}
|
|
proc last_write_time_by_name(name: string) -> FileTime {}
|
|
*/
|
|
|
|
proc stat(path: string) -> (Stat, bool) #inline {
|
|
var s: Stat;
|
|
var cstr = strings.new_c_string(path);
|
|
defer free(cstr);
|
|
var ret_int = unix_stat(cstr, &s);
|
|
return s, ret_int==0;
|
|
}
|
|
|
|
proc access(path: string, mask: int) -> bool #inline {
|
|
var cstr = strings.new_c_string(path);
|
|
defer free(cstr);
|
|
return unix_access(cstr, mask) == 0;
|
|
}
|
|
|
|
proc heap_alloc(size: int) -> rawptr #inline {
|
|
assert(size > 0);
|
|
return unix_malloc(size);
|
|
}
|
|
proc heap_resize(ptr: rawptr, new_size: int) -> rawptr #inline {
|
|
return unix_realloc(ptr, new_size);
|
|
}
|
|
proc heap_free(ptr: rawptr) #inline {
|
|
unix_free(ptr);
|
|
}
|
|
|
|
proc getenv(name: string) -> (string, bool) {
|
|
var path_str = strings.new_c_string(name);
|
|
var cstr: ^u8 = unix_getenv(path_str);
|
|
free(path_str);
|
|
if(cstr == nil) {
|
|
return "", false;
|
|
}
|
|
return strings.to_odin_string(cstr), true;
|
|
}
|
|
|
|
proc exit(code: int) #inline {
|
|
unix_exit(code);
|
|
}
|
|
|
|
|
|
proc current_thread_id() -> int {
|
|
// return cast(int) unix_gettid();
|
|
return 0;
|
|
}
|
|
|
|
proc dlopen(filename: string, flags: int) -> rawptr #inline {
|
|
var cstr = strings.new_c_string(filename);
|
|
var handle = unix_dlopen(cstr, flags);
|
|
free(cstr);
|
|
return handle;
|
|
}
|
|
proc dlsym(handle: rawptr, symbol: string) -> (proc() #cc_c) #inline {
|
|
assert(handle != nil);
|
|
var cstr = strings.new_c_string(symbol);
|
|
var proc_handle = unix_dlsym(handle, cstr);
|
|
free(cstr);
|
|
return proc_handle;
|
|
}
|
|
proc dlclose(handle: rawptr) -> bool #inline {
|
|
assert(handle != nil);
|
|
return unix_dlclose(handle) == 0;
|
|
}
|
|
proc dlerror() -> string {
|
|
return strings.to_odin_string(unix_dlerror());
|
|
}
|