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Merge branch '2191-scheduler-warnings' into 'master'

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gthread: Only print scheduler setting warnings once

Closes #2191

See merge request GNOME/glib!1637
This commit is contained in:
Sebastian Dröge 2020-09-02 15:28:17 +00:00
commit 054ef4ddf7
1 changed files with 5 additions and 1 deletions
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6
glib/gthread-posix.c
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@ -1235,6 +1235,7 @@ static void *
linux_pthread_proxy (void *data) linux_pthread_proxy (void *data)
{ {
GThreadPosix *thread = data; GThreadPosix *thread = data;
static gboolean printed_scheduler_warning = FALSE; /* (atomic) */
/* Set scheduler settings first if requested */ /* Set scheduler settings first if requested */
if (thread->scheduler_settings) if (thread->scheduler_settings)
@ -1247,8 +1248,11 @@ linux_pthread_proxy (void *data)
tid = (pid_t) syscall (SYS_gettid); tid = (pid_t) syscall (SYS_gettid);
res = syscall (SYS_sched_setattr, tid, thread->scheduler_settings->attr, flags); res = syscall (SYS_sched_setattr, tid, thread->scheduler_settings->attr, flags);
errsv = errno; errsv = errno;
if (res == -1) if (res == -1 && g_atomic_int_compare_and_exchange (&printed_scheduler_warning, FALSE, TRUE))
g_critical ("Failed to set scheduler settings: %s", g_strerror (errsv)); g_critical ("Failed to set scheduler settings: %s", g_strerror (errsv));
else if (res == -1)
g_debug ("Failed to set scheduler settings: %s", g_strerror (errsv));
printed_scheduler_warning = TRUE;
} }
return thread->proxy (data); return thread->proxy (data);