1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/src/cplus/tests/interval.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/* interval.cpp - a test program */
1.10 +
1.11 +#include "rclock.h"
1.12 +#include "rcthread.h"
1.13 +#include "rcinrval.h"
1.14 +#include "rccv.h"
1.15 +
1.16 +#include <prio.h>
1.17 +#include <prlog.h>
1.18 +#include <prprf.h>
1.19 +
1.20 +#define DEFAULT_ITERATIONS 100
1.21 +
1.22 +PRIntn main(PRIntn argc, char **argv)
1.23 +{
1.24 + RCLock ml;
1.25 + PRStatus rv;
1.26 + RCCondition cv(&ml);
1.27 +
1.28 + RCInterval now, timeout, epoch, elapsed;
1.29 + PRFileDesc *output = PR_GetSpecialFD(PR_StandardOutput);
1.30 + PRIntn msecs, seconds, loops, iterations = DEFAULT_ITERATIONS;
1.31 +
1.32 + /* slow, agonizing waits */
1.33 + for (seconds = 0; seconds < 10; ++seconds)
1.34 + {
1.35 + timeout = RCInterval::FromSeconds(seconds);
1.36 + cv.SetTimeout(timeout);
1.37 + {
1.38 + RCEnter lock(&ml);
1.39 +
1.40 + epoch.SetToNow();
1.41 +
1.42 + rv = cv.Wait();
1.43 + PR_ASSERT(PR_SUCCESS == rv);
1.44 +
1.45 + now = RCInterval(RCInterval::now);
1.46 + elapsed = now - epoch;
1.47 + }
1.48 +
1.49 + PR_fprintf(
1.50 + output, "Waiting %u seconds took %s%u milliseconds\n",
1.51 + seconds, ((elapsed < timeout)? "**" : ""),
1.52 + elapsed.ToMilliseconds());
1.53 + }
1.54 +
1.55 + /* more slow, agonizing sleeps */
1.56 + for (seconds = 0; seconds < 10; ++seconds)
1.57 + {
1.58 + timeout = RCInterval::FromSeconds(seconds);
1.59 + {
1.60 + epoch.SetToNow();
1.61 +
1.62 + rv = RCThread::Sleep(timeout);
1.63 + PR_ASSERT(PR_SUCCESS == rv);
1.64 +
1.65 + now = RCInterval(RCInterval::now);
1.66 + elapsed = now - epoch;
1.67 + }
1.68 +
1.69 + PR_fprintf(
1.70 + output, "Sleeping %u seconds took %s%u milliseconds\n",
1.71 + seconds, ((elapsed < timeout)? "**" : ""),
1.72 + elapsed.ToMilliseconds());
1.73 + }
1.74 +
1.75 + /* fast, spritely little devils */
1.76 + for (msecs = 10; msecs < 100; msecs += 10)
1.77 + {
1.78 + timeout = RCInterval::FromMilliseconds(msecs);
1.79 + cv.SetTimeout(timeout);
1.80 + {
1.81 + RCEnter lock(&ml);
1.82 +
1.83 + epoch.SetToNow();
1.84 +
1.85 + for (loops = 0; loops < iterations; ++loops)
1.86 + {
1.87 + rv = cv.Wait();
1.88 + PR_ASSERT(PR_SUCCESS == rv);
1.89 + }
1.90 +
1.91 + now = RCInterval(RCInterval::now);
1.92 + elapsed = now - epoch;
1.93 + }
1.94 + elapsed /= iterations;
1.95 +
1.96 + PR_fprintf(
1.97 + output, "Waiting %u msecs took %s%u milliseconds average\n",
1.98 + msecs, ((elapsed < timeout)? "**" : ""), elapsed.ToMilliseconds());
1.99 + }
1.100 + return 0;
1.101 +} /* main */
1.102 +
1.103 +/* interval.cpp */
1.104 +
