summaryrefslogtreecommitdiff
path: root/sysdeps/pthread/timer_gettime.c
diff options
context:
space:
mode:
authorRoland McGrath <roland@hack.frob.com>2014-06-12 13:48:47 -0700
committerRoland McGrath <roland@hack.frob.com>2014-06-12 13:48:47 -0700
commit463dc947b4f9bc4137c9919ee72b896403926474 (patch)
treeaaade6746cade247ea83c99c3057f6f08e1eb6a9 /sysdeps/pthread/timer_gettime.c
parente876b09076d859836f948691dee5a1e3b956256e (diff)
downloadglibc-463dc947b4f9bc4137c9919ee72b896403926474.tar.gz
Get rid of nptl/sysdeps/pthread/ subdirectory
Diffstat (limited to 'sysdeps/pthread/timer_gettime.c')
-rw-r--r--sysdeps/pthread/timer_gettime.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/sysdeps/pthread/timer_gettime.c b/sysdeps/pthread/timer_gettime.c
new file mode 100644
index 0000000000..1e0ea69ad0
--- /dev/null
+++ b/sysdeps/pthread/timer_gettime.c
@@ -0,0 +1,76 @@
+/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
+
+ 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; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <pthread.h>
+#include <time.h>
+
+#include "posix-timer.h"
+
+
+/* Get current value of timer TIMERID and store it in VLAUE. */
+int
+timer_gettime (timerid, value)
+ timer_t timerid;
+ struct itimerspec *value;
+{
+ struct timer_node *timer;
+ struct timespec now, expiry;
+ int retval = -1, armed = 0, valid;
+ clock_t clock = 0;
+
+ pthread_mutex_lock (&__timer_mutex);
+
+ timer = timer_id2ptr (timerid);
+ valid = timer_valid (timer);
+
+ if (valid) {
+ armed = timer->armed;
+ expiry = timer->expirytime;
+ clock = timer->clock;
+ value->it_interval = timer->value.it_interval;
+ }
+
+ pthread_mutex_unlock (&__timer_mutex);
+
+ if (valid)
+ {
+ if (armed)
+ {
+ clock_gettime (clock, &now);
+ if (timespec_compare (&now, &expiry) < 0)
+ timespec_sub (&value->it_value, &expiry, &now);
+ else
+ {
+ value->it_value.tv_sec = 0;
+ value->it_value.tv_nsec = 0;
+ }
+ }
+ else
+ {
+ value->it_value.tv_sec = 0;
+ value->it_value.tv_nsec = 0;
+ }
+
+ retval = 0;
+ }
+ else
+ __set_errno (EINVAL);
+
+ return retval;
+}