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-rw-r--r--nsprpub/pr/src/cplus/tests/interval.cpp101
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 000000000..8acf50625
--- /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 */
+