1 /* 2 * Copyright (C) 2008 2009 2010, Magnus Hjorth 3 * 4 * This file is part of mhWaveEdit. 5 * 6 * mhWaveEdit is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * mhWaveEdit is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with mhWaveEdit; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 */ 20 21 #ifndef MAINLOOP_H_INCLUDED 22 #define MAINLOOP_H_INCLUDED 23 24 #include <gtk/gtk.h> 25 26 void mainloop(void); 27 void mainloop_recurse_on(gpointer *sources, int n_sources); 28 29 typedef void (*iosource_cb)(gpointer iosource, int fd, gushort revents, 30 gpointer user_data); 31 32 /* fd is -1 if timeout occurred 33 * Return value: <0=Disable, 0=Wait for additional events, >0=Re-enable all events 34 * For timeout, <0=Disable watchdog, 0=Restart watchdog and wait for same events, >0=Re-enable all events */ 35 typedef int (*iogroup_cb)(gpointer iogroup, int fd, gushort revents, gpointer user_data); 36 37 /* Return value: 0=disable, >0=call again in X millis from current_time 38 * <0=call again in X millis from nominal time */ 39 typedef gint (*timesource_cb)(gpointer timesource, GTimeVal *current_time, 40 gpointer user_data); 41 /* Return value: 42 * <0: May sleep 43 * 0: Execute other event sources but do not sleep 44 * >0: Do not execute any other event sources 45 */ 46 typedef int (*constsource_cb)(gpointer csource, gpointer user_data); 47 48 gpointer mainloop_io_source_add(int fd, gushort events, iosource_cb cb, 49 gpointer user_data); 50 void mainloop_io_source_set_events(gpointer iosource, gushort new_events); 51 void mainloop_io_source_enable(gpointer iosource, gboolean enable); 52 void mainloop_io_source_free(gpointer iosource); 53 54 gpointer mainloop_io_group_add(int nfds, GPollFD *pfds, int wdtime_ms, 55 iogroup_cb cb, gpointer user_data); 56 void mainloop_io_group_enable(gpointer iogroup, gboolean enable); 57 void mainloop_io_group_free(gpointer iogroup); 58 59 gpointer mainloop_time_source_add(GTimeVal *tv, timesource_cb cb, 60 gpointer user_data); 61 void mainloop_time_source_restart(gpointer timesource, GTimeVal *new_tv); 62 void mainloop_time_source_free(gpointer timesource); 63 gboolean mainloop_time_source_enabled(gpointer timesource); 64 65 gpointer mainloop_constant_source_add(constsource_cb cb, gpointer user_data, 66 gboolean lowprio); 67 void mainloop_constant_source_enable(gpointer constsource, gboolean enable); 68 void mainloop_constant_source_free(gpointer constsource); 69 70 /* Convenience wrappers */ 71 72 typedef void (*defer_once_cb)(gpointer user_data); 73 void mainloop_defer_once(defer_once_cb cb, gint reltime, gpointer user_data); 74 75 #endif 76