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Diffstat (limited to 'REORG.TODO/nptl/pthread_mutex_getprioceiling.c')
-rw-r--r--REORG.TODO/nptl/pthread_mutex_getprioceiling.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/pthread_mutex_getprioceiling.c b/REORG.TODO/nptl/pthread_mutex_getprioceiling.c
new file mode 100644
index 0000000000..44b147f148
--- /dev/null
+++ b/REORG.TODO/nptl/pthread_mutex_getprioceiling.c
@@ -0,0 +1,35 @@
+/* Get current priority ceiling of pthread_mutex_t.
+ Copyright (C) 2006-2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2006.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthreadP.h>
+
+
+int
+pthread_mutex_getprioceiling (const pthread_mutex_t *mutex, int *prioceiling)
+{
+ if (__builtin_expect ((mutex->__data.__kind
+ & PTHREAD_MUTEX_PRIO_PROTECT_NP) == 0, 0))
+ return EINVAL;
+
+ *prioceiling = (mutex->__data.__lock & PTHREAD_MUTEX_PRIO_CEILING_MASK)
+ >> PTHREAD_MUTEX_PRIO_CEILING_SHIFT;
+
+ return 0;
+}