mirror of
https://github.com/odin-lang/Odin.git
synced 2025-12-31 10:22:08 +00:00
274 lines
8.1 KiB
Odin
274 lines
8.1 KiB
Odin
foreign_system_library (
|
|
dl "dl";
|
|
libc "c";
|
|
)
|
|
import "strings.odin";
|
|
|
|
Handle :: i32;
|
|
FileTime :: u64;
|
|
Errno :: i32;
|
|
|
|
|
|
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 :: 0x001;
|
|
RTLD_NOW :: 0x002;
|
|
RTLD_BINDING_MASK :: 0x3;
|
|
RTLD_GLOBAL :: 0x100;
|
|
|
|
// "Argv" arguments converted to Odin strings
|
|
args := _alloc_command_line_arguments();
|
|
|
|
_FileTime :: struct #ordered {
|
|
seconds: i64;
|
|
nanoseconds: i32;
|
|
reserved: i32;
|
|
}
|
|
|
|
// Translated from
|
|
// https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/+/jb-dev/sysroot/usr/include/bits/stat.h
|
|
// Validity is not guaranteed.
|
|
|
|
Stat :: struct #ordered {
|
|
device_id: u64; // ID of device containing file
|
|
serial: u64; // File serial number
|
|
nlink: u32; // Number of hard links
|
|
mode: u32; // Mode of the file
|
|
uid: u32; // User ID of the file's owner
|
|
gid: u32; // Group ID of the file's group
|
|
_padding: i32; // 32 bits of padding
|
|
rdev: u64; // Device ID, if device
|
|
size: i64; // Size of the file, in bytes
|
|
block_size: i64; // Optimal bllocksize for I/O
|
|
blocks: i64; // Number of 512-byte blocks allocated
|
|
|
|
last_access: _FileTime; // Time of last access
|
|
modified: _FileTime; // Time of last modification
|
|
status_change: _FileTime; // Time of last status change
|
|
|
|
_reserve1,
|
|
_reserve2,
|
|
_reserve3: i64;
|
|
serial_numbe: u64; // File serial number...? Maybe.
|
|
_reserve4: i64;
|
|
};
|
|
|
|
// File type
|
|
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
|
|
|
|
|
|
S_ISLNK :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFLNK; }
|
|
S_ISREG :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFREG; }
|
|
S_ISDIR :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFDIR; }
|
|
S_ISCHR :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFCHR; }
|
|
S_ISBLK :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFBLK; }
|
|
S_ISFIFO :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFIFO; }
|
|
S_ISSOCK :: proc(m: u32) -> bool #inline {return (m & S_IFMT) == S_IFSOCK;}
|
|
|
|
F_OK :: 0; // Test for file existance
|
|
X_OK :: 1; // Test for execute permission
|
|
W_OK :: 2; // Test for write permission
|
|
R_OK :: 4; // Test for read permission
|
|
|
|
foreign libc {
|
|
_unix_open :: proc(path: ^u8, mode: int) -> Handle #link_name "open" ---;
|
|
_unix_close :: proc(fd: Handle) -> i32 #link_name "close" ---;
|
|
_unix_read :: proc(fd: Handle, buf: rawptr, size: int) -> int #link_name "read" ---;
|
|
_unix_write :: proc(fd: Handle, buf: rawptr, size: int) -> int #link_name "write" ---;
|
|
_unix_seek :: proc(fd: Handle, offset: i64, whence: i32) -> i64 #link_name "lseek64" ---;
|
|
_unix_gettid :: proc() -> u64 #link_name "gettid" ---;
|
|
_unix_stat :: proc(path: ^u8, stat: ^Stat) -> i32 #link_name "stat" ---;
|
|
_unix_access :: proc(path: ^u8, mask: int) -> i32 #link_name "access" ---;
|
|
|
|
_unix_malloc :: proc(size: int) -> rawptr #link_name "malloc" ---;
|
|
_unix_free :: proc(ptr: rawptr) #link_name "free" ---;
|
|
_unix_realloc :: proc(ptr: rawptr, size: int) -> rawptr #link_name "realloc" ---;
|
|
_unix_getenv :: proc(^u8) -> ^u8 #link_name "getenv" ---;
|
|
|
|
_unix_exit :: proc(status: int) #link_name "exit" ---;
|
|
}
|
|
foreign dl {
|
|
_unix_dlopen :: proc(filename: ^u8, flags: int) -> rawptr #link_name "dlopen" ---;
|
|
_unix_dlsym :: proc(handle: rawptr, symbol: ^u8) -> (proc() #cc_c) #link_name "dlsym" ---;
|
|
_unix_dlclose :: proc(handle: rawptr) -> int #link_name "dlclose" ---;
|
|
_unix_dlerror :: proc() -> ^u8 #link_name "dlerror" ---;
|
|
}
|
|
|
|
// TODO(zangent): Change this to just `open` when Bill fixes overloading.
|
|
open_simple :: proc(path: string, mode: int) -> (Handle, Errno) {
|
|
|
|
cstr := strings.new_c_string(path);
|
|
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?
|
|
open :: proc(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
|
|
return open_simple(path, mode);
|
|
}
|
|
|
|
close :: proc(fd: Handle) {
|
|
_unix_close(fd);
|
|
}
|
|
|
|
read :: proc(fd: Handle, data: []u8) -> (int, Errno) {
|
|
sz := _unix_read(fd, &data[0], len(data));
|
|
return sz, 0;
|
|
}
|
|
|
|
write :: proc(fd: Handle, data: []u8) -> (int, Errno) {
|
|
sz := _unix_write(fd, &data[0], len(data));
|
|
return sz, 0;
|
|
}
|
|
|
|
seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
|
|
res := _unix_seek(fd, offset, i32(whence));
|
|
return res, 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 size, err;
|
|
}
|
|
|
|
|
|
// NOTE(bill): Uses startup to initialize it
|
|
|
|
stdin: Handle = 0;
|
|
stdout: Handle = 1;
|
|
stderr: Handle = 2;
|
|
|
|
/* TODO(zangent): Implement these!
|
|
last_write_time :: proc(fd: Handle) -> FileTime {}
|
|
last_write_time_by_name :: proc(name: string) -> FileTime {}
|
|
*/
|
|
|
|
stat :: proc(path: string) -> (Stat, int) #inline {
|
|
s: Stat;
|
|
cstr := strings.new_c_string(path);
|
|
defer free(cstr);
|
|
ret_int := _unix_stat(cstr, &s);
|
|
return s, int(ret_int);
|
|
}
|
|
|
|
access :: proc(path: string, mask: int) -> bool #inline {
|
|
cstr := strings.new_c_string(path);
|
|
defer free(cstr);
|
|
return _unix_access(cstr, mask) == 0;
|
|
}
|
|
|
|
heap_alloc :: proc(size: int) -> rawptr {
|
|
assert(size > 0);
|
|
return _unix_malloc(size);
|
|
}
|
|
|
|
heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
|
|
return _unix_realloc(ptr, new_size);
|
|
}
|
|
|
|
heap_free :: proc(ptr: rawptr) {
|
|
_unix_free(ptr);
|
|
}
|
|
|
|
getenv :: proc(name: string) -> (string, bool) {
|
|
path_str := strings.new_c_string(name);
|
|
cstr: ^u8 = _unix_getenv(path_str);
|
|
free(path_str);
|
|
if(cstr == nil) {
|
|
return "", false;
|
|
}
|
|
return strings.to_odin_string(cstr), true;
|
|
}
|
|
|
|
exit :: proc(code: int) {
|
|
_unix_exit(code);
|
|
}
|
|
|
|
current_thread_id :: proc() -> int {
|
|
// return int(_unix_gettid());
|
|
return 0;
|
|
}
|
|
|
|
dlopen :: proc(filename: string, flags: int) -> rawptr #inline {
|
|
cstr := strings.new_c_string(filename);
|
|
handle := _unix_dlopen(cstr, flags);
|
|
free(cstr);
|
|
return handle;
|
|
}
|
|
dlsym :: proc(handle: rawptr, symbol: string) -> (proc() #cc_c) #inline {
|
|
assert(handle != nil);
|
|
cstr := strings.new_c_string(symbol);
|
|
proc_handle := _unix_dlsym(handle, cstr);
|
|
free(cstr);
|
|
return proc_handle;
|
|
}
|
|
dlclose :: proc(handle: rawptr) -> bool #inline {
|
|
assert(handle != nil);
|
|
return _unix_dlclose(handle) == 0;
|
|
}
|
|
dlerror :: proc() -> string {
|
|
return strings.to_odin_string(_unix_dlerror());
|
|
}
|
|
|
|
|
|
_alloc_command_line_arguments :: proc() -> []string {
|
|
// TODO(bill):
|
|
return nil;
|
|
}
|