gecko-dev/xpcom/threads/nsThread.h

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/* -*- 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 1.1 (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/NPL/
*
* 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 mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* This Original Code has been modified by IBM Corporation.
* Modifications made by IBM described herein are
* Copyright (c) International Business Machines
* Corporation, 2000
*
* Modifications to Mozilla code or documentation
* identified per MPL Section 3.3
*
* Date Modified by Description of modification
* 04/20/2000 IBM Corp. Added PR_CALLBACK for Optlink use in OS2
*/
#ifndef nsThread_h__
#define nsThread_h__
#include "nsIRunnable.h"
#include "nsIThread.h"
#include "nsIThreadPool.h"
#include "nsISupportsArray.h"
#include "prcvar.h"
#include "nsCOMPtr.h"
class nsThreadPoolBusyBody;
class nsThread : public nsIThread
{
public:
NS_DECL_ISUPPORTS
// nsIThread methods:
NS_DECL_NSITHREAD
// nsThread methods:
nsThread();
virtual ~nsThread();
nsresult RegisterThreadSelf();
void SetPRThread(PRThread* thread) { mThread = thread; }
void WaitUntilReadyToStartMain();
static void PR_CALLBACK Main(void* arg);
static void PR_CALLBACK Exit(void* arg);
static void PR_CALLBACK Shutdown();
static PRUintn kIThreadSelfIndex;
static NS_METHOD
Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
protected:
PRThread* mThread;
nsCOMPtr<nsIRunnable> mRunnable;
PRBool mDead;
PRLock* mStartLock;
};
////////////////////////////////////////////////////////////////////////////////
class nsThreadPool : public nsIThreadPool
{
friend class nsThreadPoolBusyBody;
public:
NS_DECL_ISUPPORTS
// nsIThreadPool methods:
NS_DECL_NSITHREADPOOL
// nsThreadPool methods:
nsThreadPool();
virtual ~nsThreadPool();
nsIRunnable* GetRequest(nsIThread* currentThread);
void RequestDone(nsIRunnable *request);
static PRBool InterruptThreads(nsISupports* aElement,
void *aData);
static NS_METHOD
Create(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr);
protected:
nsresult AddThread();
nsresult RemoveThread(nsIThread* currentThread);
nsCOMPtr<nsISupportsArray> mThreads;
nsCOMPtr<nsISupportsArray> mPendingRequests;
nsCOMPtr<nsISupportsArray> mRunningRequests;
PRLock* mLock;
PRCondVar* mThreadExit;
PRCondVar* mPendingRequestAdded;
PRCondVar* mPendingRequestsAtZero;
PRUint32 mStackSize;
PRThreadPriority mPriority;
PRThreadScope mScope;
PRUint32 mMinThreads;
PRUint32 mMaxThreads;
PRUint32 mBusyThreads;
PRBool mShuttingDown;
};
////////////////////////////////////////////////////////////////////////////////
class nsThreadPoolRunnable : public nsIRunnable
{
public:
NS_DECL_ISUPPORTS
// nsIRunnable methods:
NS_DECL_NSIRUNNABLE
// nsThreadPoolRunnable methods:
nsThreadPoolRunnable(nsThreadPool* pool);
virtual ~nsThreadPoolRunnable();
protected:
nsCOMPtr<nsThreadPool> mPool;
};
////////////////////////////////////////////////////////////////////////////////
#endif // nsThread_h__