sway/sway/realtime.c

41 lines
932 B
C

#include <sys/resource.h>
#include <sched.h>
#include <unistd.h>
#include <pthread.h>
#include "sway/server.h"
#include "log.h"
static void child_fork_callback(void) {
struct sched_param param;
param.sched_priority = 0;
int ret = pthread_setschedparam(pthread_self(), SCHED_OTHER, &param);
if (ret != 0) {
sway_log(SWAY_ERROR, "Failed to reset scheduler policy on fork");
}
}
void set_rr_scheduling(void) {
int prio = sched_get_priority_min(SCHED_RR);
int old_policy;
int ret;
struct sched_param param;
ret = pthread_getschedparam(pthread_self(), &old_policy, &param);
if (ret != 0) {
sway_log(SWAY_DEBUG, "Failed to get old scheduling priority");
return;
}
param.sched_priority = prio;
ret = pthread_setschedparam(pthread_self(), SCHED_RR, &param);
if (ret != 0) {
sway_log(SWAY_INFO, "Failed to set scheduling priority to %d", prio);
return;
}
pthread_atfork(NULL, NULL, child_fork_callback);
}