diff options
Diffstat (limited to 'fastos')
| -rw-r--r-- | fastos/src/vespa/fastos/timestamp.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/fastos/src/vespa/fastos/timestamp.cpp b/fastos/src/vespa/fastos/timestamp.cpp index c7f269b59b9..8428de9968e 100644 --- a/fastos/src/vespa/fastos/timestamp.cpp +++ b/fastos/src/vespa/fastos/timestamp.cpp @@ -97,22 +97,20 @@ StopWatch::restart() { TimeStamp StopWatch::elapsed() const { - TimeStamp diff(steady_now() - _startTime); - return (diff > 0) ? diff : TimeStamp(0); + return (steady_now() - _startTime); } void StopWatch::waitAtLeast(std::chrono::microseconds us, bool busyWait) { - steady_clock::time_point startTime = steady_clock::now(); - steady_clock::time_point deadline = startTime + us; - while (steady_clock::now() < deadline) { - if (busyWait) { - for (int i = 0; i < 1000; i++) - ; - } else { - microseconds rem = (us - duration_cast<microseconds>(steady_clock::now() - startTime)); - std::this_thread::sleep_for(rem); + if (busyWait) { + steady_clock::time_point deadline = steady_clock::now() + us; + while (steady_clock::now() < deadline) { + if (busyWait) { + for (int i = 0; i < 1000; i++) { } + } } + } else { + std::this_thread::sleep_for(us); } } |