Use pygettimeofday to replace pymonotonic implementation

Author: DavidBuchanan314

python_config/pytime.c

@@ -561,113 +561,7 @@ _PyTime_GetSystemClockWithInfo(_PyTime_t *t, _Py_clock_info_t *info)
 static int
 pymonotonic(_PyTime_t *tp, _Py_clock_info_t *info, int raise)
 {
-#if defined(MS_WINDOWS)
-    ULONGLONG result;
-
-    assert(info == NULL || raise);
-
-    result = GetTickCount64();
-
-    *tp = result * MS_TO_NS;
-    if (*tp / MS_TO_NS != result) {
-        if (raise) {
-            _PyTime_overflow();
-            return -1;
-        }
-        /* Hello, time traveler! */
-        assert(0);
-    }
-
-    if (info) {
-        DWORD timeAdjustment, timeIncrement;
-        BOOL isTimeAdjustmentDisabled, ok;
-        info->implementation = "GetTickCount64()";
-        info->monotonic = 1;
-        ok = GetSystemTimeAdjustment(&timeAdjustment, &timeIncrement,
-                                     &isTimeAdjustmentDisabled);
-        if (!ok) {
-            PyErr_SetFromWindowsErr(0);
-            return -1;
-        }
-        info->resolution = timeIncrement * 1e-7;
-        info->adjustable = 0;
-    }
-
-#elif defined(__APPLE__)
-    static mach_timebase_info_data_t timebase;
-    uint64_t time;
-
-    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();
-
-    /* apply timebase factor */
-    time *= timebase.numer;
-    time /= timebase.denom;
-
-    *tp = time;
-
-    if (info) {
-        info->implementation = "mach_absolute_time()";
-        info->resolution = (double)timebase.numer / timebase.denom * 1e-9;
-        info->monotonic = 1;
-        info->adjustable = 0;
-    }
-
-#else
-    struct timespec ts;
-#ifdef CLOCK_HIGHRES
-    const clockid_t clk_id = CLOCK_HIGHRES;
-    const char *implementation = "clock_gettime(CLOCK_HIGHRES)";
-#else
-    const clockid_t clk_id = (clockid_t)4;
-    const char *implementation = "clock_gettime((clockid_t)4)";
-#endif
-
-    assert(info == NULL || raise);
-
-    if (clock_gettime(clk_id, &ts) != 0) {
-        if (raise) {
-            PyErr_SetFromErrno(PyExc_OSError);
-            return -1;
-        }
-        return -1;
-    }
-
-    if (info) {
-        struct timespec res;
-        info->monotonic = 1;
-        info->implementation = implementation;
-        info->adjustable = 0;
-        if (clock_getres(clk_id, &res) != 0) {
-            PyErr_SetFromErrno(PyExc_OSError);
-            return -1;
-        }
-        info->resolution = res.tv_sec + res.tv_nsec * 1e-9;
-    }
-    if (_PyTime_FromTimespec(tp, &ts, raise) < 0)
-        return -1;
-#endif
-    return 0;
-}
-
-_PyTime_t
-_PyTime_GetMonotonicClock(void)
-{
-    _PyTime_t t;
-    if (pymonotonic(&t, NULL, 0) < 0) {
-        /* should not happen, _PyTime_Init() checked that monotonic clock at
-           startup */
-        assert(0);
-
-        /* use a fixed value instead of a random value from the stack */
-        t = 0;
-    }
-    return t;
+    return pygettimeofday(tp, info, raise); /* should be good enough? */
 }
 
 int