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Use eina_sched_prio_drop() 

SVN revision: 52653
This commit is contained in:
Lucas De Marchi 2010-09-23 20:40:35 +00:00
parent 85599b20eb
commit b5dfed45d8
1 changed files with 1 additions and 53 deletions
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54
legacy/evas/src/lib/cache/evas_preload.c vendored
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@ -68,65 +68,13 @@ _evas_preload_thread_done(void *target __UNUSED__, Evas_Callback_Type type __UNU
free(work);
}
/* Lower priority of current thread.
*
* It's used by worker threads so they use up "bg cpu" as it was really intended
* to work. If current thread is running with real-time priority, we decrease
* our priority by 5. This is done in a portable way. Otherwise we are
* running with SCHED_OTHER policy and there's no portable way to set the nice
* level on current thread. In Linux, it does work and it's the only one that is
* implemented.
*/
static void
_evas_preload_thread_pri_drop(void)
{
struct sched_param param;
int pol, prio, ret;
pid_t tid;
pthread_t pthread_id;
pthread_id = pthread_self();
ret = pthread_getschedparam(pthread_id, &pol, &param);
if (ret)
{
ERR("Unable to query sched parameters");
return;
}
if (EINA_UNLIKELY(pol == SCHED_RR || pol == SCHED_FIFO))
{
prio = sched_get_priority_max(pol);
param.sched_priority += 5;
if (prio > 0 && param.sched_priority > prio)
param.sched_priority = prio;
pthread_setschedparam(pthread_id, pol, &param);
}
#ifdef __linux__
else
{
tid = syscall(SYS_gettid);
errno = 0;
prio = getpriority(PRIO_PROCESS, tid);
if (errno == 0)
{
prio += 5;
if (prio > 19)
prio = 19;
setpriority(PRIO_PROCESS, tid, prio);
}
}
#endif
}
static void *
_evas_preload_thread_worker(void *data)
{
Evas_Preload_Pthread_Data *pth = data;
Evas_Preload_Pthread_Worker *work;
_evas_preload_thread_pri_drop();
eina_sched_prio_drop();
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
on_error: