gecko/xpcom/tests/TestThreadPoolListener.cpp

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** 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 Thread Pool Listener Test Code.
*
* The Initial Developer of the Original Code is
* Ben Turner <bent.mozilla@gmail.com>.
* Portions created by the Initial Developer are Copyright (C) 2008
* 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 ***** */
#include "TestHarness.h"
#include "nsIThread.h"
#include "nsIThreadPool.h"
#include "nsThreadUtils.h"
#include "nsXPCOMCIDInternal.h"
#include "pratom.h"
#include "prinrval.h"
#include "prmon.h"
#include "prthread.h"
#include "mozilla/ReentrantMonitor.h"
using namespace mozilla;
#define NUMBER_OF_THREADS 4
// One hour... because test boxes can be slow!
#define IDLE_THREAD_TIMEOUT 3600000
static nsIThread** gCreatedThreadList = nsnull;
static nsIThread** gShutDownThreadList = nsnull;
static ReentrantMonitor* gReentrantMonitor = nsnull;
static bool gAllRunnablesPosted = false;
static bool gAllThreadsCreated = false;
static bool gAllThreadsShutDown = false;
#ifdef DEBUG
#define TEST_ASSERTION(_test, _msg) \
NS_ASSERTION(_test, _msg);
#else
#define TEST_ASSERTION(_test, _msg) \
PR_BEGIN_MACRO \
if (!(_test)) { \
NS_DebugBreak(NS_DEBUG_ABORT, _msg, #_test, __FILE__, __LINE__); \
} \
PR_END_MACRO
#endif
class Listener : public nsIThreadPoolListener
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSITHREADPOOLLISTENER
};
NS_IMPL_THREADSAFE_ISUPPORTS1(Listener, nsIThreadPoolListener)
NS_IMETHODIMP
Listener::OnThreadCreated()
{
nsCOMPtr<nsIThread> current(do_GetCurrentThread());
TEST_ASSERTION(current, "Couldn't get current thread!");
ReentrantMonitorAutoEnter mon(*gReentrantMonitor);
while (!gAllRunnablesPosted) {
mon.Wait();
}
for (PRUint32 i = 0; i < NUMBER_OF_THREADS; i++) {
nsIThread* thread = gCreatedThreadList[i];
TEST_ASSERTION(thread != current, "Saw the same thread twice!");
if (!thread) {
gCreatedThreadList[i] = current;
if (i == (NUMBER_OF_THREADS - 1)) {
gAllThreadsCreated = true;
mon.NotifyAll();
}
return NS_OK;
}
}
TEST_ASSERTION(false, "Too many threads!");
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
Listener::OnThreadShuttingDown()
{
nsCOMPtr<nsIThread> current(do_GetCurrentThread());
TEST_ASSERTION(current, "Couldn't get current thread!");
ReentrantMonitorAutoEnter mon(*gReentrantMonitor);
for (PRUint32 i = 0; i < NUMBER_OF_THREADS; i++) {
nsIThread* thread = gShutDownThreadList[i];
TEST_ASSERTION(thread != current, "Saw the same thread twice!");
if (!thread) {
gShutDownThreadList[i] = current;
if (i == (NUMBER_OF_THREADS - 1)) {
gAllThreadsShutDown = true;
mon.NotifyAll();
}
return NS_OK;
}
}
TEST_ASSERTION(false, "Too many threads!");
return NS_ERROR_FAILURE;
}
class AutoCreateAndDestroyReentrantMonitor
{
public:
AutoCreateAndDestroyReentrantMonitor(ReentrantMonitor** aReentrantMonitorPtr)
: mReentrantMonitorPtr(aReentrantMonitorPtr) {
*aReentrantMonitorPtr = new ReentrantMonitor("TestThreadPoolListener::AutoMon");
TEST_ASSERTION(*aReentrantMonitorPtr, "Out of memory!");
}
~AutoCreateAndDestroyReentrantMonitor() {
if (*mReentrantMonitorPtr) {
delete *mReentrantMonitorPtr;
*mReentrantMonitorPtr = nsnull;
}
}
private:
ReentrantMonitor** mReentrantMonitorPtr;
};
int main(int argc, char** argv)
{
ScopedXPCOM xpcom("ThreadPoolListener");
NS_ENSURE_FALSE(xpcom.failed(), 1);
nsIThread* createdThreadList[NUMBER_OF_THREADS] = { nsnull };
gCreatedThreadList = createdThreadList;
nsIThread* shutDownThreadList[NUMBER_OF_THREADS] = { nsnull };
gShutDownThreadList = shutDownThreadList;
AutoCreateAndDestroyReentrantMonitor newMon(&gReentrantMonitor);
NS_ENSURE_TRUE(gReentrantMonitor, 1);
nsresult rv;
nsCOMPtr<nsIThreadPool> pool =
do_CreateInstance(NS_THREADPOOL_CONTRACTID, &rv);
NS_ENSURE_SUCCESS(rv, 1);
rv = pool->SetThreadLimit(NUMBER_OF_THREADS);
NS_ENSURE_SUCCESS(rv, 1);
rv = pool->SetIdleThreadLimit(NUMBER_OF_THREADS);
NS_ENSURE_SUCCESS(rv, 1);
rv = pool->SetIdleThreadTimeout(IDLE_THREAD_TIMEOUT);
NS_ENSURE_SUCCESS(rv, 1);
nsCOMPtr<nsIThreadPoolListener> listener = new Listener();
NS_ENSURE_TRUE(listener, 1);
rv = pool->SetListener(listener);
NS_ENSURE_SUCCESS(rv, 1);
{
ReentrantMonitorAutoEnter mon(*gReentrantMonitor);
for (PRUint32 i = 0; i < NUMBER_OF_THREADS; i++) {
nsCOMPtr<nsIRunnable> runnable = new nsRunnable();
NS_ENSURE_TRUE(runnable, 1);
rv = pool->Dispatch(runnable, NS_DISPATCH_NORMAL);
NS_ENSURE_SUCCESS(rv, 1);
}
gAllRunnablesPosted = true;
mon.NotifyAll();
}
{
ReentrantMonitorAutoEnter mon(*gReentrantMonitor);
while (!gAllThreadsCreated) {
mon.Wait();
}
}
rv = pool->Shutdown();
NS_ENSURE_SUCCESS(rv, 1);
{
ReentrantMonitorAutoEnter mon(*gReentrantMonitor);
while (!gAllThreadsShutDown) {
mon.Wait();
}
}
for (PRUint32 i = 0; i < NUMBER_OF_THREADS; i++) {
nsIThread* created = gCreatedThreadList[i];
NS_ENSURE_TRUE(created, 1);
bool match = false;
for (PRUint32 j = 0; j < NUMBER_OF_THREADS; j++) {
nsIThread* destroyed = gShutDownThreadList[j];
NS_ENSURE_TRUE(destroyed, 1);
if (destroyed == created) {
match = true;
break;
}
}
NS_ENSURE_TRUE(match, 1);
}
return 0;
}