grab some time tests from glibc

1 files changed, 36 insertions, 0 deletions

diff --git a/test/time/clocktest.c b/test/time/clocktest.c
new file mode 100644
index 000000000..f2b3ea73a
--- /dev/null
+++ b/test/time/clocktest.c
@@ -0,0 +1,36 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+volatile int gotit = 0;
+
+static void
+alarm_handler (int signal)
+{
+    gotit = 1;
+}
+
+
+int
+main (int argc, char ** argv)
+{
+  clock_t start, stop;
+
+  if (signal(SIGALRM, alarm_handler) == SIG_ERR)
+    {
+      perror ("signal");
+      exit (1);
+    }
+  alarm(1);
+  start = clock ();
+  while (!gotit);
+  stop = clock ();
+
+  printf ("%ld clock ticks per second (start=%ld,stop=%ld)\n",
+	  stop - start, start, stop);
+  printf ("CLOCKS_PER_SEC=%ld, sysconf(_SC_CLK_TCK)=%ld\n",
+	  CLOCKS_PER_SEC, sysconf(_SC_CLK_TCK));
+  return 0;
+}