1 #ifndef foomainloopsignalhfoo
2 #define foomainloopsignalhfoo
7 This file is part of PulseAudio.
9 Copyright 2004-2008 Lennart Poettering
10 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
12 PulseAudio is free software; you can redistribute it and/or modify
13 it under the terms of the GNU Lesser General Public License as published
14 by the Free Software Foundation; either version 2 of the License,
15 or (at your option) any later version.
17 PulseAudio is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with PulseAudio; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <pulse/mainloop-api.h>
29 #include <pulse/cdecl.h>
34 * UNIX signal support for main loops. In contrast to other
35 * main loop event sources such as timer and IO events, UNIX signal
36 * support requires modification of the global process
37 * environment. Due to this the generic main loop abstraction layer as
38 * defined in \ref mainloop-api.h doesn't have direct support for UNIX
39 * signals. However, you may hook signal support into an abstract main loop via the routines defined herein.
42 /** An opaque UNIX signal event source object */
43 typedef struct pa_signal_event pa_signal_event;
45 typedef void (*pa_signal_cb_t) (pa_mainloop_api *api, pa_signal_event*e, int sig, void *userdata);
47 typedef void (*pa_signal_destroy_cb_t) (pa_mainloop_api *api, pa_signal_event*e, void *userdata);
49 /** Initialize the UNIX signal subsystem and bind it to the specified main loop */
50 int pa_signal_init(pa_mainloop_api *api);
52 /** Cleanup the signal subsystem */
53 void pa_signal_done(void);
55 /** Create a new UNIX signal event source object */
56 pa_signal_event* pa_signal_new(int sig, pa_signal_cb_t callback, void *userdata);
58 /** Free a UNIX signal event source object */
59 void pa_signal_free(pa_signal_event *e);
61 /** Set a function that is called when the signal event source is destroyed. Use this to free the userdata argument if required */
62 void pa_signal_set_destroy(pa_signal_event *e, pa_signal_destroy_cb_t callback);