mach-sys 0.5.4

forked from original mach, and merge from mach2/machx. A Rust interface to the user-space API of the Mach 3.0 kernel that underlies OSX.
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//! This module corresponds to `mach/semaphore.h`

use crate::ffi::c_int;

use crate::clock_types::mach_timespec_t;
use crate::kern_return::kern_return_t;
use crate::mach_types::{semaphore_t, task_t};
use crate::sync_policy::sync_policy_t;

extern "C" {
    pub fn semaphore_create(
        task:      task_t,
        semaphore: *mut semaphore_t,
        policy:    sync_policy_t,
        value:     c_int,
    ) -> kern_return_t;

    pub fn semaphore_signal(
        semaphore: *mut semaphore_t,
    ) -> kern_return_t;

    pub fn semaphore_wait(
        semaphore: *mut semaphore_t,
    ) -> kern_return_t;

    pub fn semaphore_timedwait(
        semaphore: *mut semaphore_t,
        timeout:   mach_timespec_t,
    ) -> kern_return_t;

    pub fn semaphore_destroy(
        task:      task_t,
        semaphore: *mut semaphore_t,
    ) -> kern_return_t;
}