MPD  0.20.6
Slack.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
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9  *
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11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
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15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef MPD_THREAD_SLACK_HXX
21 #define MPD_THREAD_SLACK_HXX
22 
23 #ifdef HAVE_PRCTL
24 #include <sys/prctl.h>
25 #endif
26 
32 static inline void
33 SetThreadTimerSlackNS(unsigned long slack_ns)
34 {
35 #if defined(HAVE_PRCTL) && defined(PR_SET_TIMERSLACK)
36  prctl(PR_SET_TIMERSLACK, slack_ns, 0, 0, 0);
37 #else
38  (void)slack_ns;
39 #endif
40 }
41 
42 static inline void
43 SetThreadTimerSlackUS(unsigned long slack_us)
44 {
45  SetThreadTimerSlackNS(slack_us * 1000ul);
46 }
47 
48 static inline void
49 SetThreadTimerSlackMS(unsigned long slack_ms)
50 {
51  SetThreadTimerSlackNS(slack_ms * 1000000ul);
52 }
53 
54 #endif
static void SetThreadTimerSlackMS(unsigned long slack_ms)
Definition: Slack.hxx:49
static void SetThreadTimerSlackUS(unsigned long slack_us)
Definition: Slack.hxx:43
static void SetThreadTimerSlackNS(unsigned long slack_ns)
Set the current thread's timer slack to the specified number of nanoseconds (requires Linux 2...
Definition: Slack.hxx:33