Issue #22043: _PyTime_Init() now checks if the system clock works.

Other changes:

* The whole _PyTime API is private (not defined if Py_LIMITED_API is set)
* _PyTime_gettimeofday_info() also returns -1 on error
* Simplify PyTime_gettimeofday(): only use clock_gettime(CLOCK_REALTIME) or
  gettimeofday() on UNIX. Don't fallback to ftime() or time() anymore.

1 files changed, 4 insertions, 1 deletions

diff --git a/Modules/timemodule.c b/Modules/timemodule.c
index 2b2b4bd..1a13fd0e 100644
--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -1535,7 +1535,10 @@ static PyObject*
 floattime(_Py_clock_info_t *info)
 {
     _PyTime_timeval t;
-    _PyTime_gettimeofday_info(&t, info);
+    if (_PyTime_gettimeofday_info(&t, info) < 0) {
+        assert(info != NULL);
+        return NULL;
+    }
     return PyFloat_FromDouble((double)t.tv_sec + t.tv_usec * 1e-6);
 }