gecko-dev/xpcom/tests/TestThreads.cpp

142 строки
3.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsIThread.h"
#include <stdio.h>
class nsRunner : public nsIRunnable {
public:
NS_DECL_ISUPPORTS
NS_IMETHOD Run() {
printf("running %d\n", mNum);
nsIThread* thread;
nsresult rv = nsIThread::GetCurrent(&thread);
if (NS_FAILED(rv)) {
printf("failed to get current thread\n");
return rv;
}
NS_RELEASE(thread);
// if we don't do something slow, we'll never see the other
// worker threads run
PR_Sleep(100);
return rv;
}
nsRunner(int num) : mNum(num) {
NS_INIT_REFCNT();
}
protected:
int mNum;
};
NS_IMPL_ISUPPORTS(nsRunner, nsIRunnable::GetIID());
nsresult
TestThreads()
{
nsresult rv;
nsIThread* runner;
rv = NS_NewThread(&runner, new nsRunner(0));
if (NS_FAILED(rv)) {
printf("failed to create thread\n");
return rv;
}
nsIThread* thread;
rv = nsIThread::GetCurrent(&thread);
if (NS_FAILED(rv)) {
printf("failed to get current thread\n");
return rv;
}
PRThreadScope scope;
rv = runner->GetScope(&scope);
if (NS_FAILED(rv)) {
printf("runner already exited\n");
}
rv = runner->Join(); // wait for the runner to die before quitting
if (NS_FAILED(rv)) {
printf("join failed\n");
}
rv = runner->GetScope(&scope); // this should fail after Join
if (NS_SUCCEEDED(rv)) {
printf("get scope failed\n");
}
rv = runner->Interrupt(); // this should fail after Join
if (NS_SUCCEEDED(rv)) {
printf("interrupt failed\n");
}
NS_RELEASE(runner);
NS_RELEASE(thread);
////////////////////////////////////////////////////////////////////////////
// try an unjoinable thread
rv = NS_NewThread(&runner, new nsRunner(1), 0, PR_USER_THREAD,
PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_UNJOINABLE_THREAD);
if (NS_FAILED(rv)) {
printf("failed to create thread\n");
return rv;
}
rv = runner->Join(); // wait for the runner to die before quitting
if (NS_SUCCEEDED(rv)) {
printf("shouldn't have been able to join an unjoinable thread\n");
}
NS_RELEASE(runner);
return NS_OK;
}
nsresult
TestThreadPools()
{
nsIThreadPool* pool;
nsresult rv = NS_NewThreadPool(&pool, 4, 4);
if (NS_FAILED(rv)) {
printf("failed to create thead pool\n");
return rv;
}
for (PRUint32 i = 0; i < 100; i++) {
rv = pool->DispatchRequest(new nsRunner(i+2));
}
rv = pool->Join();
return rv;
}
int
main()
{
nsresult rv = TestThreads();
if (NS_FAILED(rv)) return -1;
rv = TestThreadPools();
if (NS_FAILED(rv)) return -1;
return 0;
}