mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 14:23:09 +00:00
d29871977f
We already have a LICENSE file that covers the Zig Standard Library. We no longer need to remind everyone that the license is MIT in every single file. Previously this was introduced to clarify the situation for a fork of Zig that made Zig's LICENSE file harder to find, and replaced it with their own license that required annual payments to their company. However that fork now appears to be dead. So there is no need to reinforce the copyright notice in every single file.
193 lines
7.1 KiB
Zig
193 lines
7.1 KiB
Zig
const std = @import("../std.zig");
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const maxInt = std.math.maxInt;
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const abi = std.Target.current.abi;
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const arch = std.Target.current.cpu.arch;
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const os_tag = std.Target.current.os.tag;
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usingnamespace std.c;
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pub const _errno = switch (abi) {
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.android => struct {
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extern "c" var __errno: c_int;
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fn getErrno() *c_int {
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return &__errno;
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}
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}.getErrno,
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else => struct {
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extern "c" fn __errno_location() *c_int;
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}.__errno_location,
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};
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pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
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pub const AI_PASSIVE = 0x01;
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pub const AI_CANONNAME = 0x02;
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pub const AI_NUMERICHOST = 0x04;
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pub const AI_V4MAPPED = 0x08;
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pub const AI_ALL = 0x10;
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pub const AI_ADDRCONFIG = 0x20;
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pub const AI_NUMERICSERV = 0x400;
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pub const NI_NUMERICHOST = 0x01;
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pub const NI_NUMERICSERV = 0x02;
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pub const NI_NOFQDN = 0x04;
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pub const NI_NAMEREQD = 0x08;
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pub const NI_DGRAM = 0x10;
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pub const NI_NUMERICSCOPE = 0x100;
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pub const EAI = enum(c_int) {
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BADFLAGS = -1,
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NONAME = -2,
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AGAIN = -3,
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FAIL = -4,
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FAMILY = -6,
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SOCKTYPE = -7,
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SERVICE = -8,
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MEMORY = -10,
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SYSTEM = -11,
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OVERFLOW = -12,
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NODATA = -5,
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ADDRFAMILY = -9,
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INPROGRESS = -100,
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CANCELED = -101,
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NOTCANCELED = -102,
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ALLDONE = -103,
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INTR = -104,
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IDN_ENCODE = -105,
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_,
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};
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pub extern "c" fn fallocate64(fd: fd_t, mode: c_int, offset: off_t, len: off_t) c_int;
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pub extern "c" fn fopen64(noalias filename: [*:0]const u8, noalias modes: [*:0]const u8) ?*FILE;
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pub extern "c" fn fstat64(fd: fd_t, buf: *libc_stat) c_int;
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pub extern "c" fn fstatat64(dirfd: fd_t, path: [*:0]const u8, stat_buf: *libc_stat, flags: u32) c_int;
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pub extern "c" fn ftruncate64(fd: c_int, length: off_t) c_int;
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pub extern "c" fn getrlimit64(resource: rlimit_resource, rlim: *rlimit) c_int;
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pub extern "c" fn lseek64(fd: fd_t, offset: i64, whence: c_int) i64;
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pub extern "c" fn mmap64(addr: ?*align(std.mem.page_size) c_void, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: i64) *c_void;
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pub extern "c" fn open64(path: [*:0]const u8, oflag: c_uint, ...) c_int;
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pub extern "c" fn openat64(fd: c_int, path: [*:0]const u8, oflag: c_uint, ...) c_int;
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pub extern "c" fn pread64(fd: fd_t, buf: [*]u8, nbyte: usize, offset: i64) isize;
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pub extern "c" fn preadv64(fd: c_int, iov: [*]const iovec, iovcnt: c_uint, offset: i64) isize;
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pub extern "c" fn pwrite64(fd: fd_t, buf: [*]const u8, nbyte: usize, offset: i64) isize;
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pub extern "c" fn pwritev64(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint, offset: i64) isize;
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pub extern "c" fn sendfile64(out_fd: fd_t, in_fd: fd_t, offset: ?*i64, count: usize) isize;
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pub extern "c" fn setrlimit64(resource: rlimit_resource, rlim: *const rlimit) c_int;
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pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) isize;
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pub extern "c" fn sched_getaffinity(pid: c_int, size: usize, set: *cpu_set_t) c_int;
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pub extern "c" fn eventfd(initval: c_uint, flags: c_uint) c_int;
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pub extern "c" fn epoll_ctl(epfd: fd_t, op: c_uint, fd: fd_t, event: ?*epoll_event) c_int;
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pub extern "c" fn epoll_create1(flags: c_uint) c_int;
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pub extern "c" fn epoll_wait(epfd: fd_t, events: [*]epoll_event, maxevents: c_uint, timeout: c_int) c_int;
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pub extern "c" fn epoll_pwait(
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epfd: fd_t,
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events: [*]epoll_event,
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maxevents: c_int,
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timeout: c_int,
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sigmask: *const sigset_t,
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) c_int;
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pub extern "c" fn inotify_init1(flags: c_uint) c_int;
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pub extern "c" fn inotify_add_watch(fd: fd_t, pathname: [*:0]const u8, mask: u32) c_int;
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pub extern "c" fn inotify_rm_watch(fd: fd_t, wd: c_int) c_int;
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/// See std.elf for constants for this
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pub extern "c" fn getauxval(__type: c_ulong) c_ulong;
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pub const dl_iterate_phdr_callback = fn (info: *dl_phdr_info, size: usize, data: ?*c_void) callconv(.C) c_int;
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pub extern "c" fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*c_void) c_int;
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pub extern "c" fn sigaltstack(ss: ?*stack_t, old_ss: ?*stack_t) c_int;
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pub extern "c" fn memfd_create(name: [*:0]const u8, flags: c_uint) c_int;
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pub extern "c" fn pipe2(fds: *[2]fd_t, flags: u32) c_int;
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pub extern "c" fn fallocate(fd: fd_t, mode: c_int, offset: off_t, len: off_t) c_int;
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pub extern "c" fn sendfile(
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out_fd: fd_t,
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in_fd: fd_t,
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offset: ?*off_t,
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count: usize,
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) isize;
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pub extern "c" fn copy_file_range(fd_in: fd_t, off_in: ?*i64, fd_out: fd_t, off_out: ?*i64, len: usize, flags: c_uint) isize;
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pub extern "c" fn signalfd(fd: fd_t, mask: *const sigset_t, flags: c_uint) c_int;
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pub extern "c" fn prlimit(pid: pid_t, resource: rlimit_resource, new_limit: *const rlimit, old_limit: *rlimit) c_int;
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pub extern "c" fn posix_memalign(memptr: *?*c_void, alignment: usize, size: usize) c_int;
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pub extern "c" fn malloc_usable_size(?*const c_void) usize;
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pub extern "c" fn madvise(
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addr: *align(std.mem.page_size) c_void,
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length: usize,
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advice: c_uint,
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) c_int;
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pub const pthread_attr_t = extern struct {
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__size: [56]u8,
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__align: c_long,
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};
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pub const pthread_mutex_t = extern struct {
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size: [__SIZEOF_PTHREAD_MUTEX_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_MUTEX_T,
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};
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pub const pthread_cond_t = extern struct {
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size: [__SIZEOF_PTHREAD_COND_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_COND_T,
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};
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pub const pthread_rwlock_t = switch (abi) {
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.android => switch (@sizeOf(usize)) {
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4 => extern struct {
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lock: std.c.pthread_mutex_t = std.c.PTHREAD_MUTEX_INITIALIZER,
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cond: std.c.pthread_cond_t = std.c.PTHREAD_COND_INITIALIZER,
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numLocks: c_int = 0,
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writerThreadId: c_int = 0,
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pendingReaders: c_int = 0,
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pendingWriters: c_int = 0,
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attr: i32 = 0,
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__reserved: [12]u8 = [_]u8{0} ** 2,
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},
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8 => extern struct {
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numLocks: c_int = 0,
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writerThreadId: c_int = 0,
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pendingReaders: c_int = 0,
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pendingWriters: c_int = 0,
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attr: i32 = 0,
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__reserved: [36]u8 = [_]u8{0} ** 36,
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},
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else => @compileError("impossible pointer size"),
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},
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else => extern struct {
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size: [56]u8 align(@alignOf(usize)) = [_]u8{0} ** 56,
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},
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};
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pub const sem_t = extern struct {
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__size: [__SIZEOF_SEM_T]u8 align(@alignOf(usize)),
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};
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const __SIZEOF_PTHREAD_COND_T = 48;
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const __SIZEOF_PTHREAD_MUTEX_T = if (os_tag == .fuchsia) 40 else switch (abi) {
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.musl, .musleabi, .musleabihf => if (@sizeOf(usize) == 8) 40 else 24,
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.gnu, .gnuabin32, .gnuabi64, .gnueabi, .gnueabihf, .gnux32 => switch (arch) {
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.aarch64 => 48,
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.x86_64 => if (abi == .gnux32) 40 else 32,
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.mips64, .powerpc64, .powerpc64le, .sparcv9 => 40,
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else => if (@sizeOf(usize) == 8) 40 else 24,
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},
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.android => if (@sizeOf(usize) == 8) 40 else 4,
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else => @compileError("unsupported ABI"),
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};
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const __SIZEOF_SEM_T = 4 * @sizeOf(usize);
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pub extern "c" fn pthread_setname_np(thread: std.c.pthread_t, name: [*:0]const u8) E;
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pub extern "c" fn pthread_getname_np(thread: std.c.pthread_t, name: [*:0]u8, len: usize) E;
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pub const RTLD_LAZY = 1;
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pub const RTLD_NOW = 2;
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pub const RTLD_NOLOAD = 4;
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pub const RTLD_NODELETE = 4096;
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pub const RTLD_GLOBAL = 256;
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pub const RTLD_LOCAL = 0;
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