1 files changed, 66 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_setschedprio.c b/libpthread/nptl/pthread_setschedprio.c
new file mode 100644
index 000000000..7951460d8
--- /dev/null
+++ b/libpthread/nptl/pthread_setschedprio.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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 <errno.h>
+#include <sched.h>
+#include <string.h>
+#include <sched.h>
+#include "pthreadP.h"
+#include <lowlevellock.h>
+
+
+int
+pthread_setschedprio (
+     pthread_t threadid,
+     int prio)
+{
+  struct pthread *pd = (struct pthread *) threadid;
+
+  /* Make sure the descriptor is valid.  */
+  if (INVALID_TD_P (pd))
+    /* Not a valid thread handle.  */
+    return ESRCH;
+
+  int result = 0;
+  struct sched_param param;
+  param.sched_priority = prio;
+
+  lll_lock (pd->lock, LLL_PRIVATE);
+
+  /* If the thread should have higher priority because of some
+     PTHREAD_PRIO_PROTECT mutexes it holds, adjust the priority.  */
+  if (__builtin_expect (pd->tpp != NULL, 0) && pd->tpp->priomax > prio)
+    param.sched_priority = pd->tpp->priomax;
+
+  /* Try to set the scheduler information.  */
+  if (__builtin_expect (sched_setparam (pd->tid, &param) == -1, 0))
+    result = errno;
+  else
+    {
+      /* We succeeded changing the kernel information.  Reflect this
+	 change in the thread descriptor.  */
+      param.sched_priority = prio;
+      memcpy (&pd->schedparam, &param, sizeof (struct sched_param));
+      pd->flags |= ATTR_FLAG_SCHED_SET;
+    }
+
+  lll_unlock (pd->lock, LLL_PRIVATE);
+
+  return result;
+}