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