about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c')
-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c b/REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c
new file mode 100644
index 0000000000..e232f69a4f
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/clock_gettime.c
@@ -0,0 +1,47 @@
+/* clock_gettime -- Get current time from a POSIX clockid_t.  Linux version.
+   Copyright (C) 2003-2017 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 <sysdep.h>
+#include <errno.h>
+#include <time.h>
+#include "kernel-posix-cpu-timers.h"
+
+#ifdef HAVE_CLOCK_GETTIME_VSYSCALL
+# define HAVE_VSYSCALL
+#endif
+#include <sysdep-vdso.h>
+
+/* The REALTIME and MONOTONIC clock are definitely supported in the
+   kernel.  */
+#define SYSDEP_GETTIME \
+  SYSDEP_GETTIME_CPUTIME;						      \
+  case CLOCK_REALTIME:							      \
+  case CLOCK_MONOTONIC:							      \
+    retval = INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp);		      \
+    break
+
+/* We handled the REALTIME clock here.  */
+#define HANDLED_REALTIME	1
+#define HANDLED_CPUTIME	1
+
+#define SYSDEP_GETTIME_CPU(clock_id, tp) \
+  retval = INLINE_VSYSCALL (clock_gettime, 2, clock_id, tp); \
+  break
+#define SYSDEP_GETTIME_CPUTIME	/* Default catches them too.  */
+
+#include <sysdeps/unix/clock_gettime.c>