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73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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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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