mirror of
https://github.com/Ed94/Odin.git
synced 2026-06-13 09:22:22 -07:00
Ginger Bill
321 lines
9.3 KiB
Odin
321 lines
9.3 KiB
Odin
#import "fmt.odin";
|
|
#import "strings.odin";
|
|
|
|
Handle :: i32;
|
|
FileTime :: u64;
|
|
Errno :: int;
|
|
|
|
// TODO(zangent): Find out how to make this work on x64 and x32.
|
|
AddressSize :: i64;
|
|
|
|
// INVALID_HANDLE: Handle : -1;
|
|
|
|
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;
|
|
|
|
args: [dynamic]string;
|
|
|
|
_FileTime :: struct #ordered {
|
|
seconds: i64,
|
|
nanoseconds: i64
|
|
}
|
|
|
|
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
|
|
|
|
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;}
|
|
|
|
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
|
|
|
|
#foreign_system_library dl "dl";
|
|
#foreign_system_library libc "c";
|
|
|
|
unix_open :: proc(path: ^u8, mode: int) -> Handle #foreign libc "open";
|
|
unix_close :: proc(handle: Handle) #foreign libc "close";
|
|
unix_read :: proc(handle: Handle, buffer: rawptr, count: int) -> AddressSize #foreign libc "read";
|
|
unix_write :: proc(handle: Handle, buffer: rawptr, count: int) -> AddressSize #foreign libc "write";
|
|
unix_lseek :: proc(fs: Handle, offset: AddressSize, whence: int) -> AddressSize #foreign libc "lseek";
|
|
unix_gettid :: proc() -> u64 #foreign libc "gettid";
|
|
unix_stat :: proc(path: ^u8, stat: ^Stat) -> int #foreign libc "stat";
|
|
unix_access :: proc(path: ^u8, mask: int) -> int #foreign libc "access";
|
|
|
|
unix_malloc :: proc(size: int) -> rawptr #foreign libc "malloc";
|
|
unix_free :: proc(ptr: rawptr) #foreign libc "free";
|
|
unix_realloc :: proc(ptr: rawptr, size: int) -> rawptr #foreign libc "realloc";
|
|
unix_getenv :: proc(^u8) -> ^u8 #foreign libc "getenv";
|
|
|
|
unix_exit :: proc(status: int) #foreign libc "exit";
|
|
|
|
unix_dlopen :: proc(filename: ^u8, flags: int) -> rawptr #foreign dl "dlopen";
|
|
unix_dlsym :: proc(handle: rawptr, symbol: ^u8) -> (proc() #cc_c) #foreign dl "dlsym";
|
|
unix_dlclose :: proc(handle: rawptr) -> int #foreign dl "dlclose";
|
|
unix_dlerror :: proc() -> ^u8 #foreign dl "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, perm: u32) -> (Handle, Errno) {
|
|
return open_simple(path, mode);
|
|
}
|
|
|
|
close :: proc(fd: Handle) {
|
|
unix_close(fd);
|
|
}
|
|
|
|
write :: proc(fd: Handle, data: []u8) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
bytes_written := unix_write(fd, &data[0], len(data));
|
|
if(bytes_written == -1) {
|
|
return 0, 1;
|
|
}
|
|
return bytes_written, 0;
|
|
}
|
|
|
|
read :: proc(fd: Handle, data: []u8) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
bytes_read := unix_read(fd, &data[0], len(data));
|
|
if(bytes_read == -1) {
|
|
return 0, 1;
|
|
}
|
|
return bytes_read, 0;
|
|
}
|
|
|
|
seek :: proc(fd: Handle, offset: AddressSize, whence: int) -> (AddressSize, Errno) {
|
|
assert(fd != -1);
|
|
|
|
final_offset := unix_lseek(fd, 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 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) -> FileTime {}
|
|
last_write_time_by_name :: proc(name: string) -> FileTime {}
|
|
*/
|
|
|
|
stat :: proc(path: string) -> (Stat, bool) #inline {
|
|
s: Stat;
|
|
cstr := strings.new_c_string(path);
|
|
defer free(cstr);
|
|
ret_int := unix_stat(cstr, &s);
|
|
return s, ret_int==0;
|
|
}
|
|
|
|
access :: proc(path: string, mask: int) -> bool #inline {
|
|
cstr := strings.new_c_string(path);
|
|
defer free(cstr);
|
|
return unix_access(cstr, mask) == 0;
|
|
}
|
|
|
|
// read_entire_file :: proc(name: string) -> ([]u8, bool) {
|
|
|
|
// handle, err := open_simple(name, O_RDONLY);
|
|
// if(err != 0) {
|
|
// fmt.println("Failed to open file.");
|
|
// return nil, false;
|
|
// }
|
|
// defer(close(handle));
|
|
|
|
// // We have a file!
|
|
|
|
// size: AddressSize;
|
|
// size, err = seek(handle, 0, SEEK_END);
|
|
// if(err != 0) {
|
|
// fmt.println("Failed to seek to end of file.");
|
|
// return nil, false;
|
|
// }
|
|
|
|
// _, err = seek(handle, 0, SEEK_SET);
|
|
// if(err != 0) {
|
|
// fmt.println("Failed to seek to beginning of file.");
|
|
// return nil, false;
|
|
// }
|
|
|
|
// // We have a file size!
|
|
|
|
// data := make([]u8, size+1);
|
|
// if data == nil {
|
|
// fmt.println("Failed to allocate file buffer.");
|
|
// return nil, false;
|
|
// }
|
|
|
|
// read(handle, data);
|
|
// data[size] = 0;
|
|
|
|
// return data, true;
|
|
// }
|
|
|
|
heap_alloc :: proc(size: int) -> rawptr #inline {
|
|
assert(size > 0);
|
|
return unix_malloc(size);
|
|
}
|
|
heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr #inline {
|
|
return unix_realloc(ptr, new_size);
|
|
}
|
|
heap_free :: proc(ptr: rawptr) #inline {
|
|
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) #inline {
|
|
unix_exit(code);
|
|
}
|
|
|
|
|
|
current_thread_id :: proc() -> int {
|
|
// return cast(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());
|
|
}
|