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 #ifndef foomainloopsignalhfoo #define foomainloopsignalhfoo /*** This file is part of PulseAudio. Copyright 2004-2008 Lennart Poettering Copyright 2006 Pierre Ossman for Cendio AB PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, see . ***/ #include #include PA_C_DECL_BEGIN /** \file * UNIX signal support for main loops. In contrast to other * main loop event sources such as timer and IO events, UNIX signal * support requires modification of the global process * environment. Due to this the generic main loop abstraction layer as * defined in \ref mainloop-api.h doesn't have direct support for UNIX * signals. However, you may hook signal support into an abstract main loop via the routines defined herein. */ /** An opaque UNIX signal event source object */ typedef struct pa_signal_event pa_signal_event; /** Callback prototype for signal events */ typedef void (*pa_signal_cb_t) (pa_mainloop_api *api, pa_signal_event*e, int sig, void *userdata); /** Destroy callback prototype for signal events */ typedef void (*pa_signal_destroy_cb_t) (pa_mainloop_api *api, pa_signal_event*e, void *userdata); /** Initialize the UNIX signal subsystem and bind it to the specified main loop */ int pa_signal_init(pa_mainloop_api *api); /** Cleanup the signal subsystem */ void pa_signal_done(void); /** Create a new UNIX signal event source object */ pa_signal_event* pa_signal_new(int sig, pa_signal_cb_t callback, void *userdata); /** Free a UNIX signal event source object */ void pa_signal_free(pa_signal_event *e); /** Set a function that is called when the signal event source is destroyed. Use this to free the userdata argument if required */ void pa_signal_set_destroy(pa_signal_event *e, pa_signal_destroy_cb_t callback); PA_C_DECL_END #endif