libpulse_sys/mainloop/
signal.rs

1// Copyright 2017 Lyndon Brown
2//
3// This file is part of the PulseAudio Rust language linking library.
4//
5// Licensed under the MIT license or the Apache license (version 2.0), at your option. You may not
6// copy, modify, or distribute this file except in compliance with said license. You can find copies
7// of these licenses either in the LICENSE-MIT and LICENSE-APACHE files, or alternatively at
8// <http://opensource.org/licenses/MIT> and <http://www.apache.org/licenses/LICENSE-2.0>
9// respectively.
10//
11// Portions of documentation are copied from the LGPL 2.1+ licensed PulseAudio C headers on a
12// fair-use basis, as discussed in the overall project readme (available in the git repository).
13
14//! UNIX signal support for main loops.
15
16use std::os::raw::c_void;
17use crate::mainloop::api::pa_mainloop_api;
18
19/// An opaque UNIX signal event source object.
20#[repr(C)] pub struct pa_signal_event { _private: [u8; 0] }
21
22#[rustfmt::skip]
23pub type pa_signal_cb_t = Option<extern "C" fn(api: *const pa_mainloop_api, e: *mut pa_signal_event, sig: i32, userdata: *mut c_void)>;
24
25#[rustfmt::skip]
26pub type pa_signal_destroy_cb_t = Option<extern "C" fn(api: *const pa_mainloop_api, e: *mut pa_signal_event, userdata: *mut c_void)>;
27
28#[rustfmt::skip]
29#[link(name = "pulse")]
30extern "C" {
31    pub fn pa_signal_init(api: *const pa_mainloop_api) -> i32;
32    pub fn pa_signal_done();
33    pub fn pa_signal_new(sig: i32, callback: pa_signal_cb_t, userdata: *mut c_void) -> *mut pa_signal_event;
34    pub fn pa_signal_free(e: *mut pa_signal_event);
35    pub fn pa_signal_set_destroy(e: *mut pa_signal_event, callback: pa_signal_destroy_cb_t);
36}