1 files changed, 48 insertions, 0 deletions
diff --git a/Include/pytime.h b/Include/pytime.h
new file mode 100644
index 0000000000..d707bdb9a8
--- /dev/null
+++ b/Include/pytime.h
@@ -0,0 +1,48 @@
+#ifndef Py_LIMITED_API
+#ifndef Py_PYTIME_H
+#define Py_PYTIME_H
+
+#include "pyconfig.h" /* include for defines */
+
+/**************************************************************************
+Symbols and macros to supply platform-independent interfaces to time related
+functions and constants
+**************************************************************************/
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef HAVE_GETTIMEOFDAY
+typedef struct timeval _PyTime_timeval;
+#else
+typedef struct {
+    time_t       tv_sec;   /* seconds since Jan. 1, 1970 */
+    long         tv_usec;  /* and microseconds */
+} _PyTime_timeval;
+#endif
+
+/* Similar to POSIX gettimeofday but cannot fail.  If system gettimeofday
+ * fails or is not available, fall back to lower resolution clocks.
+ */
+PyAPI_FUNC(void) _PyTime_gettimeofday(_PyTime_timeval *tp);
+
+#define _PyTime_ADD_SECONDS(tv, interval) \
+do { \
+    tv.tv_usec += (long) (((long) interval - interval) * 1000000); \
+    tv.tv_sec += (time_t) interval + (time_t) (tv.tv_usec / 1000000); \
+    tv.tv_usec %= 1000000; \
+} while (0)
+
+#define _PyTime_INTERVAL(tv_start, tv_end) \
+    ((tv_end.tv_sec - tv_start.tv_sec) + \
+     (tv_end.tv_usec - tv_start.tv_usec) * 0.000001)
+
+/* Dummy to force linking. */
+PyAPI_FUNC(void) _PyTime_Init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* Py_PYTIME_H */
+#endif /* Py_LIMITED_API */