1 files changed, 41 insertions, 0 deletions
diff --git a/lldb/test/expression_command/timeout/wait-a-while.c b/lldb/test/expression_command/timeout/wait-a-while.c
new file mode 100644
index 00000000000..f3475fc3ff2
--- /dev/null
+++ b/lldb/test/expression_command/timeout/wait-a-while.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <stdint.h>
+
+int 
+wait_a_while (useconds_t interval)
+{
+  int num_times = 0;
+  int return_value = 1;
+
+  struct timeval start_time;
+  gettimeofday(&start_time, NULL);
+  uint64_t target = start_time.tv_sec * 1000000 + start_time.tv_usec + interval;
+
+  while (1)
+    {
+      num_times++;
+      return_value = usleep (interval);
+      if (return_value != 0)
+        {
+          struct timeval now;
+          gettimeofday(&now, NULL);
+          interval = target - now.tv_sec * 1000000 + now.tv_usec;
+        }
+      else
+        break;
+    }
+  return num_times;
+}
+
+int
+main (int argc, char **argv)
+{
+  printf ("stop here in main.\n");
+  int num_times = wait_a_while (argc * 1000);
+  printf ("Done, took %d times.\n", num_times);
+
+  return 0;
+
+}