mirror of
https://github.com/ziglang/zig.git
synced 2024-11-16 00:57:04 +00:00
c81345c8ae
* rework os.sendfile and add macosx support, and a fallback implementation for any OS. * fix sendto compile error * std.os write functions support partial writes. closes #3443. * std.os pread / pwrite functions can now return `error.Unseekable`. * std.fs.File read/write functions now have readAll/writeAll variants which loop to complete operations even when partial reads/writes happen. * Audit std.os read/write functions with respect to Linux returning EINVAL for lengths greater than 0x7fff0000. * std.os read/write shim functions do not unnecessarily loop. Since partial reads/writes are part of the API, the caller will be forced to loop anyway, and so that would just be code bloat. * Improve doc comments * Add a non-trivial test for std.os.sendfile * Fix std.os.pread on 32 bit Linux * Add missing SYS_sendfile bit on aarch64
121 lines
3.6 KiB
Zig
121 lines
3.6 KiB
Zig
const builtin = @import("builtin");
|
|
const std = @import("../std.zig");
|
|
const maxInt = std.math.maxInt;
|
|
usingnamespace std.c;
|
|
|
|
pub const _errno = switch (builtin.abi) {
|
|
.android => struct {
|
|
extern "c" var __errno: c_int;
|
|
fn getErrno() *c_int {
|
|
return &__errno;
|
|
}
|
|
}.getErrno,
|
|
else => struct {
|
|
extern "c" fn __errno_location() *c_int;
|
|
}.__errno_location,
|
|
};
|
|
|
|
pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));
|
|
|
|
pub const AI_PASSIVE = 0x01;
|
|
pub const AI_CANONNAME = 0x02;
|
|
pub const AI_NUMERICHOST = 0x04;
|
|
pub const AI_V4MAPPED = 0x08;
|
|
pub const AI_ALL = 0x10;
|
|
pub const AI_ADDRCONFIG = 0x20;
|
|
pub const AI_NUMERICSERV = 0x400;
|
|
|
|
pub const NI_NUMERICHOST = 0x01;
|
|
pub const NI_NUMERICSERV = 0x02;
|
|
pub const NI_NOFQDN = 0x04;
|
|
pub const NI_NAMEREQD = 0x08;
|
|
pub const NI_DGRAM = 0x10;
|
|
pub const NI_NUMERICSCOPE = 0x100;
|
|
|
|
pub const EAI = extern enum(c_int) {
|
|
BADFLAGS = -1,
|
|
NONAME = -2,
|
|
AGAIN = -3,
|
|
FAIL = -4,
|
|
FAMILY = -6,
|
|
SOCKTYPE = -7,
|
|
SERVICE = -8,
|
|
MEMORY = -10,
|
|
SYSTEM = -11,
|
|
OVERFLOW = -12,
|
|
|
|
NODATA = -5,
|
|
ADDRFAMILY = -9,
|
|
INPROGRESS = -100,
|
|
CANCELED = -101,
|
|
NOTCANCELED = -102,
|
|
ALLDONE = -103,
|
|
INTR = -104,
|
|
IDN_ENCODE = -105,
|
|
|
|
_,
|
|
};
|
|
|
|
pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) isize;
|
|
pub extern "c" fn sched_getaffinity(pid: c_int, size: usize, set: *cpu_set_t) c_int;
|
|
pub extern "c" fn eventfd(initval: c_uint, flags: c_uint) c_int;
|
|
pub extern "c" fn epoll_ctl(epfd: fd_t, op: c_uint, fd: fd_t, event: ?*epoll_event) c_int;
|
|
pub extern "c" fn epoll_create1(flags: c_uint) c_int;
|
|
pub extern "c" fn epoll_wait(epfd: fd_t, events: [*]epoll_event, maxevents: c_uint, timeout: c_int) c_int;
|
|
pub extern "c" fn epoll_pwait(
|
|
epfd: fd_t,
|
|
events: [*]epoll_event,
|
|
maxevents: c_int,
|
|
timeout: c_int,
|
|
sigmask: *const sigset_t,
|
|
) c_int;
|
|
pub extern "c" fn inotify_init1(flags: c_uint) c_int;
|
|
pub extern "c" fn inotify_add_watch(fd: fd_t, pathname: [*]const u8, mask: u32) c_int;
|
|
|
|
/// See std.elf for constants for this
|
|
pub extern "c" fn getauxval(__type: c_ulong) c_ulong;
|
|
|
|
pub const dl_iterate_phdr_callback = extern fn (info: *dl_phdr_info, size: usize, data: ?*c_void) c_int;
|
|
pub extern "c" fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*c_void) c_int;
|
|
|
|
pub extern "c" fn sigaltstack(ss: ?*stack_t, old_ss: ?*stack_t) c_int;
|
|
|
|
pub extern "c" fn memfd_create(name: [*:0]const u8, flags: c_uint) c_int;
|
|
|
|
pub extern "c" fn sendfile(
|
|
out_fd: fd_t,
|
|
in_fd: fd_t,
|
|
offset: ?*off_t,
|
|
count: usize,
|
|
) isize;
|
|
|
|
pub const pthread_attr_t = extern struct {
|
|
__size: [56]u8,
|
|
__align: c_long,
|
|
};
|
|
|
|
pub const pthread_mutex_t = extern struct {
|
|
size: [__SIZEOF_PTHREAD_MUTEX_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_MUTEX_T,
|
|
};
|
|
pub const pthread_cond_t = extern struct {
|
|
size: [__SIZEOF_PTHREAD_COND_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_COND_T,
|
|
};
|
|
const __SIZEOF_PTHREAD_COND_T = 48;
|
|
const __SIZEOF_PTHREAD_MUTEX_T = if (builtin.os.tag == .fuchsia) 40 else switch (builtin.abi) {
|
|
.musl, .musleabi, .musleabihf => if (@sizeOf(usize) == 8) 40 else 24,
|
|
.gnu, .gnuabin32, .gnuabi64, .gnueabi, .gnueabihf, .gnux32 => switch (builtin.arch) {
|
|
.aarch64 => 48,
|
|
.x86_64 => if (builtin.abi == .gnux32) 40 else 32,
|
|
.mips64, .powerpc64, .powerpc64le, .sparcv9 => 40,
|
|
else => if (@sizeOf(usize) == 8) 40 else 24,
|
|
},
|
|
else => unreachable,
|
|
};
|
|
|
|
pub const RTLD_LAZY = 1;
|
|
pub const RTLD_NOW = 2;
|
|
pub const RTLD_NOLOAD = 4;
|
|
pub const RTLD_NODELETE = 4096;
|
|
pub const RTLD_GLOBAL = 256;
|
|
pub const RTLD_LOCAL = 0;
|