bpo-31904: Add time module support for VxWorks RTOS

Doc/library/time.rst

@@ -153,6 +153,8 @@ Functions
  :c:func:`QueryPerformanceCounter`. The resolution is typically better than one
  microsecond.
 
+ .. availability:: Windows, Unix. Not available on VxWorks.
+
  .. deprecated:: 3.3
  The behaviour of this function depends on the platform: use
  :func:`perf_counter` or :func:`process_time` instead, depending on your

Lib/test/test_time.py

@@ -88,6 +88,8 @@ def check_ns(sec, ns):
  check_ns(time.clock_gettime(time.CLOCK_REALTIME),
  time.clock_gettime_ns(time.CLOCK_REALTIME))
 
+ @unittest.skipUnless(hasattr(time, 'clock'),
+ 'need time.clock()')
  def test_clock(self):
  with self.assertWarns(DeprecationWarning):
  time.clock()
@@ -549,7 +551,9 @@ def test_localtime_failure(self):
  self.assertRaises(ValueError, time.ctime, float("nan"))
 
  def test_get_clock_info(self):
- clocks = ['clock', 'monotonic', 'perf_counter', 'process_time', 'time']
+ clocks = ['monotonic', 'perf_counter', 'process_time', 'time']
+ if hasattr(time, 'clock'):
+ clocks.append('clock')
 
  for name in clocks:
  if name == 'clock':

Misc/NEWS.d/next/Library/2019-03-13-16-48-42.bpo-31904.9sjd38.rst

@@ -0,0 +1 @@
+Add time module support and fix test_time faiures for VxWorks.

Modules/timemodule.c

@@ -145,7 +145,7 @@ perf_counter(_Py_clock_info_t *info)
  return _PyFloat_FromPyTime(t);
 }
 
-#if defined(MS_WINDOWS) || defined(HAVE_CLOCK)
+#if (defined(MS_WINDOWS) || defined(HAVE_CLOCK)) && !defined(__VXWORKS__)
 #define PYCLOCK
 static PyObject*
 pyclock(_Py_clock_info_t *info)
@@ -765,7 +765,7 @@ time_strftime(PyObject *self, PyObject *args)
  return NULL;
  }
 
-#if defined(_MSC_VER) || (defined(__sun) && defined(__SVR4)) || defined(_AIX)
+#if defined(_MSC_VER) || (defined(__sun) && defined(__SVR4)) || defined(_AIX) || defined(__VXWORKS__)
  if (buf.tm_year + 1900 < 1 || 9999 < buf.tm_year + 1900){
  PyErr_SetString(PyExc_ValueError,
  "strftime() requires year in [1; 9999]");
@@ -1001,18 +1001,21 @@ time_mktime(PyObject *self, PyObject *tm_tuple)
  return NULL;
  }
 
-#ifdef _AIX
+#if defined(_AIX) || (defined(__VXWORKS__) && !defined(_WRS_CONFIG_LP64))
  /* bpo-19748: AIX mktime() valid range is 00:00:00 UTC, January 1, 1970
  to 03:14:07 UTC, January 19, 2038. Thanks to the workaround below,
  it is possible to support years in range [1902; 2037] */
  if (tm.tm_year < 2 || tm.tm_year > 137){
  /* bpo-19748: On AIX, mktime() does not report overflow error
- for timestamp < -2^31 or timestamp > 2**31-1. */
+ for timestamp < -2^31 or timestamp > 2**31-1. VxWorks has the
+ same issue when working in 32 bit mode. */
  PyErr_SetString(PyExc_OverflowError,
  "mktime argument out of range");
  return NULL;
  }
+#endif
 
+#ifdef _AIX
  /* bpo-34373: AIX mktime() has an integer overflow for years in range
  [1902; 1969]. Workaround the issue by using a year greater or equal than
  1970 (tm_year >= 70): mktime() behaves correctly in that case