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| author | Tuncer Ayaz <[email protected]> | 2010-01-23 00:16:26 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2010-01-23 10:19:02 +0100 |
| commit | ed188cb4dbe90d3ebb4f7f251e04b5e8d2d3c143 (patch) | |
| tree | 593fcce707766d94875238ed2c11d828090df2c9 | |
| parent | e19d6e4463a9cc3b738fd32a46e0ce9282a70fd5 (diff) | |
| download | otp-ed188cb4dbe90d3ebb4f7f251e04b5e8d2d3c143.tar.gz otp-ed188cb4dbe90d3ebb4f7f251e04b5e8d2d3c143.tar.bz2 otp-ed188cb4dbe90d3ebb4f7f251e04b5e8d2d3c143.zip | |
Remove mutex lock around sys_gettimeofday() in os:timestamp/0
In the erlang-questions thread "os:timestamp() uses mutex lock"
Jonas Falkevik questioned the need for a mutex lock in
os:timestamp/0. The mutex lock *is* needed in erlang:now()
to guarantee the uniqueness of the returned time, but serves
no useful purpose in os:timestamp().
Signed-off-by: Tuncer Ayaz <[email protected]>
| -rw-r--r-- | erts/emulator/beam/erl_time_sup.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index 76bfdecd9f..28bbcc15ce 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -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); |