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.
 
+   VxWorks doesn't support this fucntion.
+
    .. 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()
@@ -549,8 +551,10 @@ 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']
-
+        if hasattr(time, 'clock'):
+            clocks = ['clock', 'monotonic', 'perf_counter', 'process_time', 'time']
+        else:
+            clocks = ['monotonic', 'perf_counter', 'process_time', 'time']
         for name in clocks:
             if name == 'clock':
                 with self.assertWarns(DeprecationWarning):

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]");
@@ -1005,18 +1005,23 @@ time_mktime(PyObject *self, PyObject *tup)
     {
         return NULL;
     }
-#ifndef _AIX
-    buf.tm_wday = -1;  /* sentinel; original value ignored */
-    tt = mktime(&buf);
-#else
+
+#if defined(_AIX) || (defined(__VXWORKS__) && !defined(_WRS_CONFIG_LP64))
     /* year < 1902 or year > 2037 */
     if ((buf.tm_year < 2) || (buf.tm_year > 137))  {
         /* Issue #19748: On AIX, mktime() doesn't report overflow error for
-         * timestamp < -2^31 or timestamp > 2**31-1. */
+         * 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
+
+#ifndef _AIX
+    buf.tm_wday = -1;  /* sentinel; original value ignored */
+    tt = mktime(&buf);
+#else
     year = buf.tm_year;
     /* year < 1970 - adjust buf.tm_year into legal range */
     while (buf.tm_year < 70) {