diff options
| -rw-r--r-- | Modules/timemodule.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/Modules/timemodule.c b/Modules/timemodule.c index b32c9df107..c99c0a934b 100644 --- a/Modules/timemodule.c +++ b/Modules/timemodule.c @@ -768,13 +768,17 @@ steady_clock(int strict) #if defined(MS_WINDOWS) && !defined(__BORLANDC__) return win32_clock(!strict); #elif defined(__APPLE__) - uint64_t time = mach_absolute_time(); + static mach_timebase_info_data_t timebase; + uint64_t time; double secs; - static mach_timebase_info_data_t timebase; - if (timebase.denom == 0) - mach_timebase_info(&timebase); + if (timebase.denom == 0) { + /* According to the Technical Q&A QA1398, mach_timebase_info() cannot + fail: https://developer.apple.com/library/mac/#qa/qa1398/ */ + (void)mach_timebase_info(&timebase); + } + time = mach_absolute_time(); secs = (double)time * timebase.numer / timebase.denom * 1e-9; return PyFloat_FromDouble(secs); |