1 files changed, 53 insertions, 0 deletions
diff --git a/TamTamEdit.activity/common/Util/Clooper/ttest.c b/TamTamEdit.activity/common/Util/Clooper/ttest.c
new file mode 100644
index 0000000..9ff3d85
--- /dev/null
+++ b/TamTamEdit.activity/common/Util/Clooper/ttest.c
@@ -0,0 +1,53 @@
+
+#include <pthread.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+double sleeptime = 0.0;
+int usleep(int);
+static void * threadfn(void * _arg)
+{
+    double pytime(const struct timeval * tv)
+    {
+        return (double) tv->tv_sec + (double) tv->tv_usec / 1000000.0;
+    }
+    struct timeval tv0, tv1;
+    double m = 0.0;
+
+    int loops = 0;
+
+    while (1)
+    {
+        gettimeofday(&tv0, 0);
+        usleep( (int) (sleeptime * 1000000) );
+        gettimeofday(&tv1, 0);
+        double t0 = pytime(&tv0);
+        double t1 = pytime(&tv1);
+        if (t1 - t0 > 1.2 * sleeptime)
+        {
+            fprintf(stderr, "critical lagginess %lf\n", t1 - t0);
+        }
+        if (m < t1 - t0)
+        {
+            m = t1 - t0;
+            fprintf(stderr, "maximum lag %lf\n", m);
+        }
+
+        if ( ( loops % 100 ) == 0 )
+        {
+            fprintf(stderr, "loop (%lf)\n", t0);
+        }
+        ++loops;
+    }
+    return NULL;
+}
+void testtimer(double st)
+{
+    pthread_t pth;
+    sleeptime = st;
+
+    pthread_create( &pth, NULL, &threadfn, NULL );
+}
+