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| author | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2016-03-12 10:54:05 -0800 |
|---|---|---|
| committer | Aliaksey Kandratsenka <alkondratenko@gmail.com> | 2016-03-12 10:55:42 -0800 |
| commit | 6682016092c735feb29021acbb8c2067fdf1a209 (patch) | |
| tree | b2ad4bb79104dcd6bcd81546b09fdbed4e810c9f | |
| parent | 6ff86ff6a783a277956e45db68c6a2b729f27000 (diff) | |
| download | gperftools-6682016092c735feb29021acbb8c2067fdf1a209.tar.gz | |
Unbreak profiling with CPUPROFILE_FREQUENCY=1
This closes ticket #777.
No test sadly, since it's not trivial to unittest this case. But
fix with single-shot manual testing is better than nothing.
| -rw-r--r-- | src/profile-handler.cc | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/profile-handler.cc b/src/profile-handler.cc index db97345..7fdcb69 100644 --- a/src/profile-handler.cc +++ b/src/profile-handler.cc @@ -492,8 +492,10 @@ void ProfileHandler::UpdateTimer(bool enable) { timer_running_ = enable; struct itimerval timer; - timer.it_interval.tv_sec = 0; - timer.it_interval.tv_usec = (enable ? (1000000 / frequency_) : 0); + static const int kMillion = 1000000; + int interval_usec = enable ? kMillion / frequency_ : 0; + timer.it_interval.tv_sec = interval_usec / kMillion; + timer.it_interval.tv_usec = interval_usec % kMillion; timer.it_value = timer.it_interval; setitimer(timer_type_, &timer, 0); } |