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Dogcows Code - chaz/tint2/blob - src/util/timer.h
1 /**************************************************************************
3 * Copyright (C) 2009 Andreas.Fink (Andreas.Fink85@gmail.com)
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 **************************************************************************/
24 extern GSList
* timeout_list
;
25 extern struct timeval next_timeout
;
28 typedef struct _timeout timeout
;
33 * Single shot timer (i.e. timer with interval_msec == 0) are deleted automatically as soon as they expire
34 * i.e. you do not need to stop them, however it is safe to call stop_timeout for these timers.
35 * Periodic timeouts are aligned to each other whenever possible, i.e. one interval_msec is an
36 * integral multiple of the other.
39 /** installs a timeout with the first timeout of 'value_msec' and then a periodic timeout with
40 * 'interval_msec'. '_callback' is the callback function when the timer reaches the timeout.
41 * returns a pointer to the timeout, which is needed for stopping it again
43 timeout
* add_timeout(int value_msec
, int interval_msec
, void (*_callback
)(void*), void* arg
);
45 /** changes timeout 't'. If timeout 't' does not exist, nothing happens **/
46 void change_timeout(timeout
* t
, int value_msec
, int interval_msec
, void (*_callback
)(void*), void* arg
);
48 /** stops the timeout 't' **/
49 void stop_timeout(timeout
* t
);
51 /** stops all timeouts **/
52 void stop_all_timeouts();
54 /** update_next_timeout updates next_timeout to the value, when the next installed timeout will expire **/
55 void update_next_timeout();
57 /** Callback of all expired timeouts **/
58 void callback_timeout_expired();
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