2.5-18.1

1 files changed, 48 insertions, 0 deletions

diff --git a/nptl/pthread_mutexattr_getprioceiling.c b/nptl/pthread_mutexattr_getprioceiling.c
new file mode 100644
index 0000000000..792e9a43d6
--- /dev/null
+++ b/nptl/pthread_mutexattr_getprioceiling.c
@@ -0,0 +1,48 @@
+/* Get priority ceiling setting from pthread_mutexattr_t.
+   Copyright (C) 2006 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <pthreadP.h>
+
+
+int
+pthread_mutexattr_getprioceiling (attr, prioceiling)
+     const pthread_mutexattr_t *attr;
+     int *prioceiling;
+{
+  const struct pthread_mutexattr *iattr;
+  int ceiling;
+
+  iattr = (const struct pthread_mutexattr *) attr;
+
+  ceiling = ((iattr->mutexkind & PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
+	     >> PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT);
+
+  if (! ceiling)
+    {
+      if (__sched_fifo_min_prio == -1)
+	__init_sched_fifo_prio ();
+      if (ceiling < __sched_fifo_min_prio)
+	ceiling = __sched_fifo_min_prio;
+    }
+
+  *prioceiling = ceiling;
+
+  return 0;
+}