--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/parallel_execution/TimeImpl.cbc	Thu Jun 29 18:04:33 2017 +0900
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <sys/time.h>
+
+#include "../context.h"
+
+Time* createTimeImpl(struct Context* context) {
+    struct Time* time = new Time();
+    struct TimeImpl* timeImpl = new TimeImpl();
+    time->time = (union Data*)timeImpl;
+    time->start = C_startTime;
+    time->end = C_endTime;
+    return time;
+}
+
+__code startTime(struct TimeImpl* time, __code next(...)) {
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+
+    time->time = tv.tv_sec + (double)tv.tv_usec*1e-6;
+
+    goto next(...);
+}
+
+__code endTime(struct TimeImpl* time, __code next(...)) {
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+
+    printf("%0.6f\n", (tv.tv_sec+(double)tv.tv_usec*1e-6) - time->time);
+
+    goto next(...);
+}