PipeWire  0.1.5
rtkit.h
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1 /* PipeWire
2  * Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library 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 GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef __PIPEWIRE_RTKIT_H__
21 #define __PIPEWIRE_RTKIT_H__
22 
23 #include <sys/types.h>
24 #include <unistd.h>
25 
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
29 
30 #define RTKIT_SERVICE_NAME "org.freedesktop.RealtimeKit1"
31 #define RTKIT_OBJECT_PATH "/org/freedesktop/RealtimeKit1"
32 
38 struct pw_rtkit_bus *
40 
42 void
43 pw_rtkit_bus_free(struct pw_rtkit_bus *system_bus);
44 
45 
53 int
54 pw_rtkit_make_realtime(struct pw_rtkit_bus *system_bus, pid_t thread, int priority);
55 
56 
64 int
65 pw_rtkit_make_high_priority(struct pw_rtkit_bus *system_bus, pid_t thread, int nice_level);
66 
71 int
72 pw_rtkit_get_max_realtime_priority(struct pw_rtkit_bus *system_bus);
73 
79 int
80 pw_rtkit_get_min_nice_level(struct pw_rtkit_bus *system_bus, int *min_nice_level);
81 
86 long long
87 pw_rtkit_get_rttime_usec_max(struct pw_rtkit_bus *system_bus);
88 
89 #ifdef __cplusplus
90 }
91 #endif
92 
93 #endif /* __PIPEWIRE_RTKIT_H__ */
int pw_rtkit_make_realtime(struct pw_rtkit_bus *system_bus, pid_t thread, int priority)
This is mostly equivalent to sched_setparam(thread, SCHED_RR, { .sched_priority = priority })...
Definition: rtkit.c:354
int pw_rtkit_get_min_nice_level(struct pw_rtkit_bus *system_bus, int *min_nice_level)
Retreive the minimum value of nice level available.
Definition: rtkit.c:369
void pw_rtkit_bus_free(struct pw_rtkit_bus *system_bus)
Free an RTKit bus.
Definition: rtkit.c:86
int pw_rtkit_make_high_priority(struct pw_rtkit_bus *system_bus, pid_t thread, int nice_level)
This is mostly equivalent to setpriority(PRIO_PROCESS, thread, nice_level).
Definition: rtkit.c:359
int pw_rtkit_get_max_realtime_priority(struct pw_rtkit_bus *system_bus)
Return the maximum value of realtime priority available.
Definition: rtkit.c:364
struct pw_rtkit_bus * pw_rtkit_bus_get_system(void)
Get an RTKit bus.
Definition: rtkit.c:60
long long pw_rtkit_get_rttime_usec_max(struct pw_rtkit_bus *system_bus)
Return the maximum value of RLIMIT_RTTIME to set before attempting a realtime request.
Definition: rtkit.c:374