mirror of
https://github.com/Ed94/Odin.git
synced 2026-06-16 02:42:22 -07:00
Hasen Judy
477 lines
15 KiB
Odin
477 lines
15 KiB
Odin
package os
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foreign import dl "system:dl"
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foreign import libc "system:c"
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import "core:runtime"
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import "core:strings"
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import "core:c"
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OS :: "darwin";
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Handle :: distinct i32;
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File_Time :: distinct u64;
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Errno :: distinct int;
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INVALID_HANDLE :: ~Handle(0);
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ERROR_NONE: Errno : 0;
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EPERM: Errno : 1; /* Operation not permitted */
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ENOENT: Errno : 2; /* No such file or directory */
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ESRCH: Errno : 3; /* No such process */
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EINTR: Errno : 4; /* Interrupted system call */
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EIO: Errno : 5; /* Input/output error */
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ENXIO: Errno : 6; /* Device not configured */
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E2BIG: Errno : 7; /* Argument list too long */
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ENOEXEC: Errno : 8; /* Exec format error */
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EBADF: Errno : 9; /* Bad file descriptor */
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ECHILD: Errno : 10; /* No child processes */
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EDEADLK: Errno : 11; /* Resource deadlock avoided */
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ENOMEM: Errno : 12; /* Cannot allocate memory */
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EACCES: Errno : 13; /* Permission denied */
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EFAULT: Errno : 14; /* Bad address */
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ENOTBLK: Errno : 15; /* Block device required */
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EBUSY: Errno : 16; /* Device / Resource busy */
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EEXIST: Errno : 17; /* File exists */
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EXDEV: Errno : 18; /* Cross-device link */
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ENODEV: Errno : 19; /* Operation not supported by device */
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ENOTDIR: Errno : 20; /* Not a directory */
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EISDIR: Errno : 21; /* Is a directory */
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EINVAL: Errno : 22; /* Invalid argument */
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ENFILE: Errno : 23; /* Too many open files in system */
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EMFILE: Errno : 24; /* Too many open files */
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ENOTTY: Errno : 25; /* Inappropriate ioctl for device */
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ETXTBSY: Errno : 26; /* Text file busy */
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EFBIG: Errno : 27; /* File too large */
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ENOSPC: Errno : 28; /* No space left on device */
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ESPIPE: Errno : 29; /* Illegal seek */
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EROFS: Errno : 30; /* Read-only file system */
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EMLINK: Errno : 31; /* Too many links */
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EPIPE: Errno : 32; /* Broken pipe */
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/* math software */
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EDOM: Errno : 33; /* Numerical argument out of domain */
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ERANGE: Errno : 34; /* Result too large */
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/* non-blocking and interrupt i/o */
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EAGAIN: Errno : 35; /* Resource temporarily unavailable */
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EWOULDBLOCK: Errno : EAGAIN; /* Operation would block */
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EINPROGRESS: Errno : 36; /* Operation now in progress */
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EALREADY: Errno : 37; /* Operation already in progress */
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/* ipc/network software -- argument errors */
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ENOTSOCK: Errno : 38; /* Socket operation on non-socket */
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EDESTADDRREQ: Errno : 39; /* Destination address required */
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EMSGSIZE: Errno : 40; /* Message too long */
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EPROTOTYPE: Errno : 41; /* Protocol wrong type for socket */
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ENOPROTOOPT: Errno : 42; /* Protocol not available */
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EPROTONOSUPPORT: Errno : 43; /* Protocol not supported */
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ESOCKTNOSUPPORT: Errno : 44; /* Socket type not supported */
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ENOTSUP: Errno : 45; /* Operation not supported */
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EPFNOSUPPORT: Errno : 46; /* Protocol family not supported */
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EAFNOSUPPORT: Errno : 47; /* Address family not supported by protocol family */
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EADDRINUSE: Errno : 48; /* Address already in use */
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EADDRNOTAVAIL: Errno : 49; /* Can't assign requested address */
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/* ipc/network software -- operational errors */
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ENETDOWN: Errno : 50; /* Network is down */
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ENETUNREACH: Errno : 51; /* Network is unreachable */
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ENETRESET: Errno : 52; /* Network dropped connection on reset */
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ECONNABORTED: Errno : 53; /* Software caused connection abort */
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ECONNRESET: Errno : 54; /* Connection reset by peer */
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ENOBUFS: Errno : 55; /* No buffer space available */
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EISCONN: Errno : 56; /* Socket is already connected */
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ENOTCONN: Errno : 57; /* Socket is not connected */
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ESHUTDOWN: Errno : 58; /* Can't send after socket shutdown */
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ETOOMANYREFS: Errno : 59; /* Too many references: can't splice */
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ETIMEDOUT: Errno : 60; /* Operation timed out */
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ECONNREFUSED: Errno : 61; /* Connection refused */
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ELOOP: Errno : 62; /* Too many levels of symbolic links */
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ENAMETOOLONG: Errno : 63; /* File name too long */
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/* should be rearranged */
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EHOSTDOWN: Errno : 64; /* Host is down */
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EHOSTUNREACH: Errno : 65; /* No route to host */
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ENOTEMPTY: Errno : 66; /* Directory not empty */
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/* quotas & mush */
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EPROCLIM: Errno : 67; /* Too many processes */
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EUSERS: Errno : 68; /* Too many users */
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EDQUOT: Errno : 69; /* Disc quota exceeded */
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/* Network File System */
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ESTALE: Errno : 70; /* Stale NFS file handle */
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EREMOTE: Errno : 71; /* Too many levels of remote in path */
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EBADRPC: Errno : 72; /* RPC struct is bad */
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ERPCMISMATCH: Errno : 73; /* RPC version wrong */
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EPROGUNAVAIL: Errno : 74; /* RPC prog. not avail */
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EPROGMISMATCH: Errno : 75; /* Program version wrong */
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EPROCUNAVAIL: Errno : 76; /* Bad procedure for program */
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ENOLCK: Errno : 77; /* No locks available */
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ENOSYS: Errno : 78; /* Function not implemented */
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EFTYPE: Errno : 79; /* Inappropriate file type or format */
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EAUTH: Errno : 80; /* Authentication error */
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ENEEDAUTH: Errno : 81; /* Need authenticator */
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/* Intelligent device errors */
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EPWROFF: Errno : 82; /* Device power is off */
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EDEVERR: Errno : 83; /* Device error, e.g. paper out */
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EOVERFLOW: Errno : 84; /* Value too large to be stored in data type */
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/* Program loading errors */
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EBADEXEC: Errno : 85; /* Bad executable */
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EBADARCH: Errno : 86; /* Bad CPU type in executable */
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ESHLIBVERS: Errno : 87; /* Shared library version mismatch */
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EBADMACHO: Errno : 88; /* Malformed Macho file */
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ECANCELED: Errno : 89; /* Operation canceled */
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EIDRM: Errno : 90; /* Identifier removed */
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ENOMSG: Errno : 91; /* No message of desired type */
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EILSEQ: Errno : 92; /* Illegal byte sequence */
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ENOATTR: Errno : 93; /* Attribute not found */
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EBADMSG: Errno : 94; /* Bad message */
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EMULTIHOP: Errno : 95; /* Reserved */
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ENODATA: Errno : 96; /* No message available on STREAM */
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ENOLINK: Errno : 97; /* Reserved */
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ENOSR: Errno : 98; /* No STREAM resources */
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ENOSTR: Errno : 99; /* Not a STREAM */
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EPROTO: Errno : 100; /* Protocol error */
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ETIME: Errno : 101; /* STREAM ioctl timeout */
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ENOPOLICY: Errno : 103; /* No such policy registered */
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ENOTRECOVERABLE: Errno : 104; /* State not recoverable */
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EOWNERDEAD: Errno : 105; /* Previous owner died */
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EQFULL: Errno : 106; /* Interface output queue is full */
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ELAST: Errno : 106; /* Must be equal largest errno */
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O_RDONLY :: 0x0000;
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O_WRONLY :: 0x0001;
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O_RDWR :: 0x0002;
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O_CREATE :: 0x0200;
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O_EXCL :: 0x0800;
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O_NOCTTY :: 0;
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O_TRUNC :: 0x0400;
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O_NONBLOCK :: 0x0004;
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O_APPEND :: 0x0008;
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O_SYNC :: 0x0080;
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O_ASYNC :: 0x0040;
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O_CLOEXEC :: 0x1000000;
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SEEK_SET :: 0;
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SEEK_CUR :: 1;
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SEEK_END :: 2;
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SEEK_DATA :: 3;
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SEEK_HOLE :: 4;
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SEEK_MAX :: SEEK_HOLE;
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// NOTE(zangent): These are OS specific!
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// Do not mix these up!
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RTLD_LAZY :: 0x1;
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RTLD_NOW :: 0x2;
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RTLD_LOCAL :: 0x4;
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RTLD_GLOBAL :: 0x8;
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RTLD_NODELETE :: 0x80;
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RTLD_NOLOAD :: 0x10;
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RTLD_FIRST :: 0x100;
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// "Argv" arguments converted to Odin strings
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args := _alloc_command_line_arguments();
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_File_Time :: struct {
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seconds: i64,
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nanoseconds: i64,
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}
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Stat :: struct {
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device_id: i32, // ID of device containing file
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mode: u16, // Mode of the file
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nlink: u16, // Number of hard links
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serial: u64, // File serial number
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uid: u32, // User ID of the file's owner
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gid: u32, // Group ID of the file's group
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rdev: i32, // Device ID, if device
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last_access: _File_Time, // Time of last access
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modified: _File_Time, // Time of last modification
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status_change: _File_Time, // Time of last status change
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created: _File_Time, // Time of creation
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size: i64, // Size of the file, in bytes
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blocks: i64, // Number of blocks allocated for the file
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block_size: i32, // Optimal blocksize for I/O
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flags: u32, // User-defined flags for the file
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gen_num: u32, // File generation number ..?
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_spare: i32, // RESERVED
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_reserve1,
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_reserve2: i64, // RESERVED
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};
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// File type
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S_IFMT :: 0o170000; // Type of file mask
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S_IFIFO :: 0o010000; // Named pipe (fifo)
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S_IFCHR :: 0o020000; // Character special
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S_IFDIR :: 0o040000; // Directory
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S_IFBLK :: 0o060000; // Block special
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S_IFREG :: 0o100000; // Regular
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S_IFLNK :: 0o120000; // Symbolic link
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S_IFSOCK :: 0o140000; // Socket
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// File mode
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// Read, write, execute/search by owner
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S_IRWXU :: 0o0700; // RWX mask for owner
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S_IRUSR :: 0o0400; // R for owner
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S_IWUSR :: 0o0200; // W for owner
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S_IXUSR :: 0o0100; // X for owner
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// Read, write, execute/search by group
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S_IRWXG :: 0o0070; // RWX mask for group
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S_IRGRP :: 0o0040; // R for group
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S_IWGRP :: 0o0020; // W for group
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S_IXGRP :: 0o0010; // X for group
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// Read, write, execute/search by others
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S_IRWXO :: 0o0007; // RWX mask for other
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S_IROTH :: 0o0004; // R for other
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S_IWOTH :: 0o0002; // W for other
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S_IXOTH :: 0o0001; // X for other
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S_ISUID :: 0o4000; // Set user id on execution
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S_ISGID :: 0o2000; // Set group id on execution
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S_ISVTX :: 0o1000; // Directory restrcted delete
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S_ISLNK :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFLNK;
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S_ISREG :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFREG;
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S_ISDIR :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFDIR;
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S_ISCHR :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFCHR;
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S_ISBLK :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFBLK;
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S_ISFIFO :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFIFO;
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S_ISSOCK :: inline proc(m: u32) -> bool do return (m & S_IFMT) == S_IFSOCK;
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R_OK :: 4; // Test for read permission
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W_OK :: 2; // Test for write permission
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X_OK :: 1; // Test for execute permission
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F_OK :: 0; // Test for file existance
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foreign libc {
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@(link_name="__error") __error :: proc() -> ^int ---;
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@(link_name="open") _unix_open :: proc(path: cstring, flags: i32, mode: u16) -> Handle ---;
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@(link_name="close") _unix_close :: proc(handle: Handle) ---;
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@(link_name="read") _unix_read :: proc(handle: Handle, buffer: rawptr, count: int) -> int ---;
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@(link_name="write") _unix_write :: proc(handle: Handle, buffer: rawptr, count: int) -> int ---;
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@(link_name="lseek") _unix_lseek :: proc(fs: Handle, offset: int, whence: int) -> int ---;
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@(link_name="gettid") _unix_gettid :: proc() -> u64 ---;
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@(link_name="getpagesize") _unix_getpagesize :: proc() -> i32 ---;
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@(link_name="stat64") _unix_stat :: proc(path: cstring, stat: ^Stat) -> int ---;
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@(link_name="access") _unix_access :: proc(path: cstring, mask: int) -> int ---;
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@(link_name="malloc") _unix_malloc :: proc(size: int) -> rawptr ---;
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@(link_name="calloc") _unix_calloc :: proc(num, size: int) -> rawptr ---;
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@(link_name="free") _unix_free :: proc(ptr: rawptr) ---;
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@(link_name="realloc") _unix_realloc :: proc(ptr: rawptr, size: int) -> rawptr ---;
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@(link_name="getenv") _unix_getenv :: proc(cstring) -> cstring ---;
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@(link_name="getcwd") _unix_getcwd :: proc(buf: cstring, len: c.size_t) -> cstring ---;
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@(link_name="chdir") _unix_chdir :: proc(buf: cstring) -> c.int ---;
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@(link_name="exit") _unix_exit :: proc(status: int) ---;
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}
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foreign dl {
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@(link_name="dlopen") _unix_dlopen :: proc(filename: cstring, flags: int) -> rawptr ---;
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@(link_name="dlsym") _unix_dlsym :: proc(handle: rawptr, symbol: cstring) -> rawptr ---;
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@(link_name="dlclose") _unix_dlclose :: proc(handle: rawptr) -> int ---;
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@(link_name="dlerror") _unix_dlerror :: proc() -> cstring ---;
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}
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get_last_error :: proc() -> int {
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return __error()^;
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}
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open :: proc(path: string, flags: int = O_RDONLY, mode: int = 0) -> (Handle, Errno) {
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cstr := strings.clone_to_cstring(path);
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handle := _unix_open(cstr, i32(flags), u16(mode));
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delete(cstr);
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if handle == -1 {
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return INVALID_HANDLE, 1;
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}
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return handle, 0;
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}
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close :: proc(fd: Handle) {
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_unix_close(fd);
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}
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write :: proc(fd: Handle, data: []u8) -> (int, Errno) {
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assert(fd != -1);
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if len(data) == 0 {
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return 0, 0;
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}
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bytes_written := _unix_write(fd, &data[0], len(data));
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if(bytes_written == -1) {
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return 0, 1;
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}
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return bytes_written, 0;
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}
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read :: proc(fd: Handle, data: []u8) -> (int, Errno) {
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assert(fd != -1);
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bytes_read := _unix_read(fd, &data[0], len(data));
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if bytes_read == -1 {
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return 0, 1;
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}
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return bytes_read, 0;
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}
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seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
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assert(fd != -1);
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final_offset := i64(_unix_lseek(fd, int(offset), whence));
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if final_offset == -1 {
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return 0, 1;
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}
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return final_offset, 0;
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}
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file_size :: proc(fd: Handle) -> (i64, Errno) {
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prev, _ := seek(fd, 0, SEEK_CUR);
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size, err := seek(fd, 0, SEEK_END);
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seek(fd, prev, SEEK_SET);
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return i64(size), err;
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}
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// NOTE(bill): Uses startup to initialize it
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stdin: Handle = 0; // get_std_handle(win32.STD_INPUT_HANDLE);
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stdout: Handle = 1; // get_std_handle(win32.STD_OUTPUT_HANDLE);
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stderr: Handle = 2; // get_std_handle(win32.STD_ERROR_HANDLE);
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/* TODO(zangent): Implement these!
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last_write_time :: proc(fd: Handle) -> File_Time {}
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last_write_time_by_name :: proc(name: string) -> File_Time {}
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*/
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is_path_separator :: proc(r: rune) -> bool {
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return r == '/';
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}
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stat :: inline proc(path: string) -> (Stat, bool) {
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s: Stat;
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cstr := strings.clone_to_cstring(path);
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defer delete(cstr);
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ret_int := _unix_stat(cstr, &s);
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return s, ret_int==0;
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}
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access :: inline proc(path: string, mask: int) -> bool {
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cstr := strings.clone_to_cstring(path);
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defer delete(cstr);
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return _unix_access(cstr, mask) == 0;
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}
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heap_alloc :: inline proc(size: int) -> rawptr {
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assert(size > 0);
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return _unix_calloc(1, size);
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}
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heap_resize :: inline proc(ptr: rawptr, new_size: int) -> rawptr {
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return _unix_realloc(ptr, new_size);
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}
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heap_free :: inline proc(ptr: rawptr) {
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_unix_free(ptr);
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}
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getenv :: proc(name: string) -> (string, bool) {
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path_str := strings.clone_to_cstring(name);
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defer delete(path_str);
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cstr := _unix_getenv(path_str);
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if cstr == nil {
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return "", false;
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}
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return string(cstr), true;
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}
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get_current_directory :: proc() -> string {
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page_size := get_page_size(); // NOTE(tetra): See note in os_linux.odin/get_current_directory.
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buf := make([dynamic]u8, page_size);
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for {
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cwd := _unix_getcwd(cstring(#no_bounds_check &buf[0]), c.size_t(len(buf)));
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if cwd != nil {
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return string(cwd);
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}
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if Errno(get_last_error()) != ERANGE {
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return "";
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}
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resize(&buf, len(buf)+page_size);
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}
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unreachable();
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return "";
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}
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set_current_directory :: proc(path: string) -> (err: Errno) {
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cstr := strings.clone_to_cstring(path, context.temp_allocator);
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res := _unix_chdir(cstr);
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if res == -1 do return Errno(get_last_error());
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return ERROR_NONE;
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}
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exit :: inline proc(code: int) -> ! {
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_unix_exit(code);
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}
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current_thread_id :: proc "contextless" () -> int {
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// return int(_unix_gettid());
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return 0;
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}
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dlopen :: inline proc(filename: string, flags: int) -> rawptr {
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cstr := strings.clone_to_cstring(filename);
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|
defer delete(cstr);
|
|
handle := _unix_dlopen(cstr, flags);
|
|
return handle;
|
|
}
|
|
dlsym :: inline proc(handle: rawptr, symbol: string) -> rawptr {
|
|
assert(handle != nil);
|
|
cstr := strings.clone_to_cstring(symbol);
|
|
defer delete(cstr);
|
|
proc_handle := _unix_dlsym(handle, cstr);
|
|
return proc_handle;
|
|
}
|
|
dlclose :: inline 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 do return page_size;
|
|
|
|
page_size = int(_unix_getpagesize());
|
|
return page_size;
|
|
}
|
|
|
|
|
|
_alloc_command_line_arguments :: proc() -> []string {
|
|
res := make([]string, len(runtime.args__));
|
|
for arg, i in runtime.args__ {
|
|
res[i] = string(arg);
|
|
}
|
|
return res;
|
|
}
|