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[COMMITTED PATCH] NaCl: Make pthread_condattr_setclock reject CLOCK_MONOTONIC.
- From: Roland McGrath <roland at hack dot frob dot com>
- To: "GNU C. Library" <libc-alpha at sourceware dot org>
- Date: Fri, 10 Jul 2015 14:21:22 -0700 (PDT)
- Subject: [COMMITTED PATCH] NaCl: Make pthread_condattr_setclock reject CLOCK_MONOTONIC.
- Authentication-results: sourceware.org; auth=none
2015-07-10 Roland McGrath <roland@hack.frob.com>
* sysdeps/nacl/pthread_condattr_setclock.c: New file.
diff --git a/sysdeps/nacl/pthread_condattr_setclock.c b/sysdeps/nacl/pthread_condattr_setclock.c
new file mode 100644
index 0000000..fc33ec9
--- /dev/null
+++ b/sysdeps/nacl/pthread_condattr_setclock.c
@@ -0,0 +1,42 @@
+/* Set the clock for timeouts on a condition variable. NaCl version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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_condattr_setclock (pthread_condattr_t *attr, clockid_t clock_id)
+{
+ switch (clock_id)
+ {
+ case CLOCK_REALTIME:
+ /* This is the default state and the only one actually supported. */
+ return 0;
+
+ case CLOCK_MONOTONIC:
+ /* NaCl recognizes CLOCK_MONOTONIC for other purposes, so it is a
+ "known clock". But NaCl doesn't support it for this purpose. */
+ return ENOTSUP;
+
+ default:
+ /* The only other recognized clocks are CPU-time clocks,
+ which POSIX says should get EINVAL. */
+ return EINVAL;
+ }
+}