diff options
Diffstat (limited to 'lib/std/c.zig')
| -rw-r--r-- | lib/std/c.zig | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/lib/std/c.zig b/lib/std/c.zig new file mode 100644 index 0000000000..9c7ec2f0e5 --- /dev/null +++ b/lib/std/c.zig @@ -0,0 +1,149 @@ +const builtin = @import("builtin"); +const std = @import("std"); +const page_size = std.mem.page_size; + +pub usingnamespace @import("os/bits.zig"); + +pub usingnamespace switch (builtin.os) { + .linux => @import("c/linux.zig"), + .windows => @import("c/windows.zig"), + .macosx, .ios, .tvos, .watchos => @import("c/darwin.zig"), + .freebsd => @import("c/freebsd.zig"), + .netbsd => @import("c/netbsd.zig"), + else => struct {}, +}; + +pub fn getErrno(rc: var) u16 { + if (rc == -1) { + return @intCast(u16, _errno().*); + } else { + return 0; + } +} + +/// The return type is `type` to force comptime function call execution. +/// TODO: https://github.com/ziglang/zig/issues/425 +/// If not linking libc, returns struct{pub const ok = false;} +/// If linking musl libc, returns struct{pub const ok = true;} +/// If linking gnu libc (glibc), the `ok` value will be true if the target +/// version is greater than or equal to `glibc_version`. +/// If linking a libc other than these, returns `false`. +pub fn versionCheck(glibc_version: builtin.Version) type { + return struct { + pub const ok = blk: { + if (!builtin.link_libc) break :blk false; + switch (builtin.abi) { + .musl, .musleabi, .musleabihf => break :blk true, + .gnu, .gnuabin32, .gnuabi64, .gnueabi, .gnueabihf, .gnux32 => { + const ver = builtin.glibc_version orelse break :blk false; + if (ver.major < glibc_version.major) break :blk false; + if (ver.major > glibc_version.major) break :blk true; + if (ver.minor < glibc_version.minor) break :blk false; + if (ver.minor > glibc_version.minor) break :blk true; + break :blk ver.patch >= glibc_version.patch; + }, + else => break :blk false, + } + }; + }; +} + +// TODO https://github.com/ziglang/zig/issues/265 on this whole file + +pub extern "c" fn fopen(filename: [*]const u8, modes: [*]const u8) ?*FILE; +pub extern "c" fn fclose(stream: *FILE) c_int; +pub extern "c" fn fwrite(ptr: [*]const u8, size_of_type: usize, item_count: usize, stream: *FILE) usize; +pub extern "c" fn fread(ptr: [*]u8, size_of_type: usize, item_count: usize, stream: *FILE) usize; + +pub extern "c" fn printf(format: [*]const u8, ...) c_int; +pub extern "c" fn abort() noreturn; +pub extern "c" fn exit(code: c_int) noreturn; +pub extern "c" fn isatty(fd: fd_t) c_int; +pub extern "c" fn close(fd: fd_t) c_int; +pub extern "c" fn @"close$NOCANCEL"(fd: fd_t) c_int; +pub extern "c" fn fstat(fd: fd_t, buf: *Stat) c_int; +pub extern "c" fn @"fstat$INODE64"(fd: fd_t, buf: *Stat) c_int; +pub extern "c" fn lseek(fd: fd_t, offset: off_t, whence: c_int) off_t; +pub extern "c" fn open(path: [*]const u8, oflag: c_uint, ...) c_int; +pub extern "c" fn openat(fd: c_int, path: [*]const u8, oflag: c_uint, ...) c_int; +pub extern "c" fn raise(sig: c_int) c_int; +pub extern "c" fn read(fd: fd_t, buf: [*]u8, nbyte: usize) isize; +pub extern "c" fn readv(fd: c_int, iov: [*]const iovec, iovcnt: c_uint) isize; +pub extern "c" fn pread(fd: fd_t, buf: [*]u8, nbyte: usize, offset: u64) isize; +pub extern "c" fn preadv(fd: c_int, iov: [*]const iovec, iovcnt: c_uint, offset: u64) isize; +pub extern "c" fn writev(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint) isize; +pub extern "c" fn pwritev(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint, offset: u64) isize; +pub extern "c" fn stat(noalias path: [*]const u8, noalias buf: *Stat) c_int; +pub extern "c" fn write(fd: fd_t, buf: [*]const u8, nbyte: usize) isize; +pub extern "c" fn pwrite(fd: fd_t, buf: [*]const u8, nbyte: usize, offset: u64) isize; +pub extern "c" fn mmap(addr: ?*align(page_size) c_void, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: u64) *c_void; +pub extern "c" fn munmap(addr: *align(page_size) c_void, len: usize) c_int; +pub extern "c" fn mprotect(addr: *align(page_size) c_void, len: usize, prot: c_uint) c_int; +pub extern "c" fn unlink(path: [*]const u8) c_int; +pub extern "c" fn getcwd(buf: [*]u8, size: usize) ?[*]u8; +pub extern "c" fn waitpid(pid: c_int, stat_loc: *c_uint, options: c_uint) c_int; +pub extern "c" fn fork() c_int; +pub extern "c" fn access(path: [*]const u8, mode: c_uint) c_int; +pub extern "c" fn pipe(fds: *[2]fd_t) c_int; +pub extern "c" fn pipe2(fds: *[2]fd_t, flags: u32) c_int; +pub extern "c" fn mkdir(path: [*]const u8, mode: c_uint) c_int; +pub extern "c" fn symlink(existing: [*]const u8, new: [*]const u8) c_int; +pub extern "c" fn rename(old: [*]const u8, new: [*]const u8) c_int; +pub extern "c" fn chdir(path: [*]const u8) c_int; +pub extern "c" fn execve(path: [*]const u8, argv: [*]const ?[*]const u8, envp: [*]const ?[*]const u8) c_int; +pub extern "c" fn dup(fd: fd_t) c_int; +pub extern "c" fn dup2(old_fd: fd_t, new_fd: fd_t) c_int; +pub extern "c" fn readlink(noalias path: [*]const u8, noalias buf: [*]u8, bufsize: usize) isize; +pub extern "c" fn realpath(noalias file_name: [*]const u8, noalias resolved_name: [*]u8) ?[*]u8; +pub extern "c" fn sigprocmask(how: c_int, noalias set: *const sigset_t, noalias oset: ?*sigset_t) c_int; +pub extern "c" fn gettimeofday(noalias tv: ?*timeval, noalias tz: ?*timezone) c_int; +pub extern "c" fn sigaction(sig: c_int, noalias act: *const Sigaction, noalias oact: ?*Sigaction) c_int; +pub extern "c" fn nanosleep(rqtp: *const timespec, rmtp: ?*timespec) c_int; +pub extern "c" fn setreuid(ruid: c_uint, euid: c_uint) c_int; +pub extern "c" fn setregid(rgid: c_uint, egid: c_uint) c_int; +pub extern "c" fn rmdir(path: [*]const u8) c_int; +pub extern "c" fn getenv(name: [*]const u8) ?[*]u8; +pub extern "c" fn sysctl(name: [*]const c_int, namelen: c_uint, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) c_int; +pub extern "c" fn sysctlbyname(name: [*]const u8, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) c_int; +pub extern "c" fn sysctlnametomib(name: [*]const u8, mibp: ?*c_int, sizep: ?*usize) c_int; + +pub extern "c" fn gethostname(name: [*]u8, len: usize) c_int; +pub extern "c" fn bind(socket: fd_t, address: ?*const sockaddr, address_len: socklen_t) c_int; +pub extern "c" fn socket(domain: c_uint, sock_type: c_uint, protocol: c_uint) c_int; +pub extern "c" fn listen(sockfd: fd_t, backlog: c_uint) c_int; +pub extern "c" fn getsockname(sockfd: fd_t, noalias addr: *sockaddr, noalias addrlen: *socklen_t) c_int; +pub extern "c" fn connect(sockfd: fd_t, sock_addr: *const sockaddr, addrlen: socklen_t) c_int; +pub extern "c" fn accept4(sockfd: fd_t, addr: *sockaddr, addrlen: *socklen_t, flags: c_uint) c_int; +pub extern "c" fn getsockopt(sockfd: fd_t, level: c_int, optname: c_int, optval: *c_void, optlen: *socklen_t) c_int; +pub extern "c" fn kill(pid: pid_t, sig: c_int) c_int; +pub extern "c" fn getdirentries(fd: fd_t, buf_ptr: [*]u8, nbytes: usize, basep: *i64) isize; +pub extern "c" fn setgid(ruid: c_uint, euid: c_uint) c_int; +pub extern "c" fn setuid(uid: c_uint) c_int; +pub extern "c" fn clock_gettime(clk_id: c_int, tp: *timespec) c_int; +pub extern "c" fn clock_getres(clk_id: c_int, tp: *timespec) c_int; + +pub extern "c" fn aligned_alloc(alignment: usize, size: usize) ?*c_void; +pub extern "c" fn malloc(usize) ?*c_void; +pub extern "c" fn realloc(?*c_void, usize) ?*c_void; +pub extern "c" fn free(*c_void) void; +pub extern "c" fn posix_memalign(memptr: **c_void, alignment: usize, size: usize) c_int; + +pub extern "c" fn utimensat(dirfd: fd_t, pathname: [*]const u8, times: *[2]timespec, flags: u32) c_int; +pub extern "c" fn futimens(fd: fd_t, times: *const [2]timespec) c_int; + +pub extern "c" fn pthread_create(noalias newthread: *pthread_t, noalias attr: ?*const pthread_attr_t, start_routine: extern fn (?*c_void) ?*c_void, noalias arg: ?*c_void) c_int; +pub extern "c" fn pthread_attr_init(attr: *pthread_attr_t) c_int; +pub extern "c" fn pthread_attr_setstack(attr: *pthread_attr_t, stackaddr: *c_void, stacksize: usize) c_int; +pub extern "c" fn pthread_attr_destroy(attr: *pthread_attr_t) c_int; +pub extern "c" fn pthread_self() pthread_t; +pub extern "c" fn pthread_join(thread: pthread_t, arg_return: ?*?*c_void) c_int; + +pub extern "c" fn kqueue() c_int; +pub extern "c" fn kevent( + kq: c_int, + changelist: [*]const Kevent, + nchanges: c_int, + eventlist: [*]Kevent, + nevents: c_int, + timeout: ?*const timespec, +) c_int; |