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Diffstat (limited to 'mozilla/nsprpub/pr/src/cplus/tests/interval.cpp')
-rw-r--r-- | mozilla/nsprpub/pr/src/cplus/tests/interval.cpp | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/mozilla/nsprpub/pr/src/cplus/tests/interval.cpp b/mozilla/nsprpub/pr/src/cplus/tests/interval.cpp new file mode 100644 index 0000000..1223d67 --- /dev/null +++ b/mozilla/nsprpub/pr/src/cplus/tests/interval.cpp @@ -0,0 +1,133 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* 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 */ + |