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-rw-r--r--REORG.TODO/nptl/pthread_condattr_setclock.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/pthread_condattr_setclock.c b/REORG.TODO/nptl/pthread_condattr_setclock.c
new file mode 100644
index 0000000000..cd94171002
--- /dev/null
+++ b/REORG.TODO/nptl/pthread_condattr_setclock.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 2003-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
+
+   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 <assert.h>
+#include <errno.h>
+#include <futex-internal.h>
+#include <time.h>
+#include <sysdep.h>
+#include "pthreadP.h"
+
+
+int
+pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t clock_id)
+{
+  /* Only a few clocks are allowed.  */
+  if (clock_id != CLOCK_MONOTONIC && clock_id != CLOCK_REALTIME)
+    /* If more clocks are allowed some day the storing of the clock ID
+       in the pthread_cond_t structure needs to be adjusted.  */
+    return EINVAL;
+
+  /* If we do not support waiting using CLOCK_MONOTONIC, return an error.  */
+  if (clock_id == CLOCK_MONOTONIC
+      && !futex_supports_exact_relative_timeouts())
+    return ENOTSUP;
+
+  /* Make sure the value fits in the bits we reserved.  */
+  assert (clock_id < (1 << COND_CLOCK_BITS));
+
+  int *valuep = &((struct pthread_condattr *) attr)->value;
+
+  *valuep = ((*valuep & ~(((1 << COND_CLOCK_BITS) - 1) << 1))
+	     | (clock_id << 1));
+
+  return 0;
+}