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authorErlang/OTP <[email protected]>2010-01-25 13:48:58 +0000
committerErlang/OTP <[email protected]>2010-01-25 13:48:58 +0000
commitb2d471d1447981543549313f9fcfd4c37f4fbc80 (patch)
treeffdc1f08cfdecc6737fe67c9ad96833af6969aca /erts/emulator/beam/erl_time_sup.c
parent064ce3bdefa6ffa795c3ed5e7ceb7722664722d3 (diff)
parented188cb4dbe90d3ebb4f7f251e04b5e8d2d3c143 (diff)
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Merge branch 'ta/os_timestamp_no_mutex' into ccase/r13b04_dev
* ta/os_timestamp_no_mutex: Remove mutex lock around sys_gettimeofday() in os:timestamp/0 OTP-8390 An unecessary lock operation in os:timestamp/0 has been eliminated, making it slightly more efficient. (Thanks to Jonas Falkevik and Tuncer Ayaz.)
Diffstat (limited to 'erts/emulator/beam/erl_time_sup.c')
-rw-r--r--erts/emulator/beam/erl_time_sup.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 76bfdecd9f..c15f85f8f1 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 1999-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 1999-2010. All Rights Reserved.
+ *
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
- *
+ *
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
- *
+ *
* %CopyrightEnd%
*/
@@ -754,12 +754,8 @@ get_sys_now(Uint* megasec, Uint* sec, Uint* microsec)
{
SysTimeval now;
- erts_smp_mtx_lock(&erts_timeofday_mtx);
-
sys_gettimeofday(&now);
- erts_smp_mtx_unlock(&erts_timeofday_mtx);
-
*megasec = (Uint) (now.tv_sec / 1000000);
*sec = (Uint) (now.tv_sec % 1000000);
*microsec = (Uint) (now.tv_usec);