зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
2.8 KiB
C++
92 строки
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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Some tests for nsAutoLock.
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*/
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#include "nsAutoLock.h"
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#include "prthread.h"
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PRLock* gLock;
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int gCount;
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static void run(void* arg)
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{
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for (int i = 0; i < 1000000; ++i) {
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nsAutoLock guard(gLock);
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++gCount;
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PR_ASSERT(gCount == 1);
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--gCount;
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}
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}
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int main(int argc, char** argv)
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{
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gLock = PR_NewLock();
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gCount = 0;
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// This shouldn't compile
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//nsAutoLock* l1 = new nsAutoLock(theLock);
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//delete l1;
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// Create a block-scoped lock. This should compile.
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{
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nsAutoLock l2(gLock);
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}
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// Fork a thread to access the shared variable in a tight loop
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PRThread* t1 =
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PR_CreateThread(PR_SYSTEM_THREAD,
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run,
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nsnull,
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PR_PRIORITY_NORMAL,
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PR_GLOBAL_THREAD,
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PR_JOINABLE_THREAD,
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0);
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// ...and now do the same thing ourselves
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run(nsnull);
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// Wait for the background thread to finish, if necessary.
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PR_JoinThread(t1);
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return 0;
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}
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