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core: use pthread_setschedparam on OpenBSD

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OpenBSD don't have support for sched_getparam(), sched_setparam(), or
sched_setscheduler() functions (yet). In this case, we need use
pthead-equivalents for real-time sched for picom. Theses changes add
this support.

(cherry picked from commit 023103c620)
Authored-by: Jose Maldonado aka Yukiteru <josemald89@gmail.com>
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Jose Maldonado aka Yukiteru 2024-02-09 14:16:07 -04:00 committed by Yuxuan Shui
parent baf78e733f
commit 33c20c57c1
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2 changed files with 19 additions and 0 deletions
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4
src/meson.build
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@ -86,6 +86,10 @@ elif (host_system == 'freebsd' or host_system == 'netbsd' or
cflags += ['-DHAS_KQUEUE']
endif
if host_system == 'openbsd'
deps += [dependency('threads', required: true)]
endif
subdir('backend')
picom = executable('picom', srcs, c_args: cflags,

15
src/picom.c
View file

@ -33,6 +33,9 @@
#include <xcb/render.h>
#include <xcb/sync.h>
#include <xcb/xfixes.h>
#ifdef __OpenBSD__
#include <pthread.h>
#endif
#include <ev.h>
#include <test.h>
@ -2588,14 +2591,26 @@ void set_rr_scheduling(void) {
int ret;
struct sched_param param;
#ifndef __OpenBSD__
ret = sched_getparam(0, &param);
#else
int old_policy;
ret = pthread_getschedparam(pthread_self(), &old_policy, &param);
#endif
if (ret != 0) {
log_debug("Failed to get old scheduling priority");
return;
}
param.sched_priority = priority;
#ifndef __OpenBSD__
ret = sched_setscheduler(0, SCHED_RR, &param);
#else
ret = pthread_setschedparam(pthread_self(), SCHED_RR, &param);
#endif
if (ret != 0) {
log_info("Failed to set real-time scheduling priority to %d.", priority);
return;