add function get_current_time_us and get_current_time_ms

HISTORY

@@ -1,7 +1,8 @@
 
-Version 1.23  2015-10-16
+Version 1.23  2015-10-26
   * sched_thread.c: task can execute in a new thread
   * sched_thread.c: support delay tasks
+  * add function get_current_time_us and get_current_time_ms
 
 Version 1.22  2015-10-10
   * export php function: fastcommon_get_first_local_ip

src/shared_func.c

@@ -2251,3 +2251,19 @@ bool is_private_ip(const char* ip)
     return false;
 }
 
+int64_t get_current_time_us()
+{
+	struct timeval tv;
+
+	if (gettimeofday(&tv, NULL) != 0)
+	{
+		logError("file: "__FILE__", line: %d, " \
+			 "call gettimeofday fail, " \
+			 "errno=%d, error info: %s", \
+			 __LINE__, errno, STRERROR(errno));
+		return errno != 0 ? errno : EPERM;
+	}
+
+	return ((int64_t)tv.tv_sec * 1000 * 1000 + (int64_t)tv.tv_usec);
+}
+

src/shared_func.h

@@ -520,6 +520,14 @@ double get_line_distance_km(const double lat1, const double lon1,
  */
 bool is_private_ip(const char* ip);
 
+
+/** get current time in us
+ *  return: current time
+ */
+int64_t get_current_time_us();
+
+#define get_current_time_ms() (get_current_time_us() / 1000)
+
 #ifdef __cplusplus
 }
 #endif