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Merge branch 'fallback-setattr-failure' into 'master'

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GThread - Check if sched_setattr is allowed by the system policies before depending on it

See merge request GNOME/glib!1356
This commit is contained in:
Philip Withnall 2020-02-12 17:05:16 +00:00
commit 3847bc2e0e
1 changed files with 13 additions and 0 deletions
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13
glib/gthread-posix.c
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@ -1211,6 +1211,19 @@ g_system_thread_get_scheduler_settings (GThreadSchedulerSettings *scheduler_sett
} }
while (res == -1); while (res == -1);
/* Try setting them on the current thread to see if any system policies are
* in place that would disallow doing so */
res = syscall (SYS_sched_setattr, tid, scheduler_settings->attr, flags);
if (res == -1)
{
int errsv = errno;
g_debug ("Failed to set thread scheduler attributes: %s", g_strerror (errsv));
g_free (scheduler_settings->attr);
return FALSE;
}
return TRUE; return TRUE;
#else #else
return FALSE; return FALSE;