const std = @import("../std.zig");
const maxInt = std.math.maxInt;
usingnamespace std.c;

extern "c" fn __errno_location() *c_int;
pub const _errno = __errno_location;

pub const MAP_FAILED = @intToPtr(*c_void, maxInt(usize));

pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) c_int;
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;