1 files changed, 101 insertions, 0 deletions
diff --git a/nsprpub/pr/src/cplus/tests/interval.cpp b/nsprpub/pr/src/cplus/tests/interval.cpp
new file mode 100644
index 0000000000..8acf506256
--- /dev/null
+++ b/nsprpub/pr/src/cplus/tests/interval.cpp
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* interval.cpp - a test program */
+
+#include "rclock.h"
+#include "rcthread.h"
+#include "rcinrval.h"
+#include "rccv.h"
+
+#include <prio.h>
+#include <prlog.h>
+#include <prprf.h>
+
+#define DEFAULT_ITERATIONS 100
+
+PRIntn main(PRIntn argc, char **argv)
+{
+    RCLock ml;
+    PRStatus rv;
+    RCCondition cv(&ml);
+
+    RCInterval now, timeout, epoch, elapsed;
+    PRFileDesc *output = PR_GetSpecialFD(PR_StandardOutput);
+    PRIntn msecs, seconds, loops, iterations = DEFAULT_ITERATIONS;
+
+    /* slow, agonizing waits */
+    for (seconds = 0; seconds < 10; ++seconds)
+    {
+        timeout = RCInterval::FromSeconds(seconds);
+        cv.SetTimeout(timeout);
+        {
+            RCEnter lock(&ml);
+
+            epoch.SetToNow();
+
+            rv = cv.Wait();
+            PR_ASSERT(PR_SUCCESS == rv);
+
+            now = RCInterval(RCInterval::now);
+            elapsed = now - epoch;
+        }
+
+        PR_fprintf(
+            output, "Waiting %u seconds took %s%u milliseconds\n",
+            seconds, ((elapsed < timeout)? "**" : ""),
+            elapsed.ToMilliseconds());
+    }
+
+    /* more slow, agonizing sleeps */
+    for (seconds = 0; seconds < 10; ++seconds)
+    {
+        timeout = RCInterval::FromSeconds(seconds);
+        {
+            epoch.SetToNow();
+
+            rv = RCThread::Sleep(timeout);
+            PR_ASSERT(PR_SUCCESS == rv);
+
+            now = RCInterval(RCInterval::now);
+            elapsed = now - epoch;
+        }
+
+        PR_fprintf(
+            output, "Sleeping %u seconds took %s%u milliseconds\n",
+            seconds, ((elapsed < timeout)? "**" : ""),
+            elapsed.ToMilliseconds());
+    }
+
+    /* fast, spritely little devils */
+    for (msecs = 10; msecs < 100; msecs += 10)
+    {
+        timeout = RCInterval::FromMilliseconds(msecs);
+        cv.SetTimeout(timeout);
+        {
+            RCEnter lock(&ml);
+
+            epoch.SetToNow();
+
+            for (loops = 0; loops < iterations; ++loops)
+            {
+                rv = cv.Wait();
+                PR_ASSERT(PR_SUCCESS == rv);
+            }
+
+            now = RCInterval(RCInterval::now);
+            elapsed = now - epoch;
+        }
+        elapsed /= iterations;
+
+        PR_fprintf(
+            output, "Waiting %u msecs took %s%u milliseconds average\n",
+            msecs, ((elapsed < timeout)? "**" : ""), elapsed.ToMilliseconds());
+    }
+    return 0;
+}  /* main */
+
+/* interval.cpp */
+