gecko-dev/xpcom/threads/nsIThread.h

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4.3 KiB
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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 1.0 (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.
*/
#ifndef nsIThread_h__
#define nsIThread_h__
#include "nsISupports.h"
#include "prthread.h"
#include "nscore.h"
////////////////////////////////////////////////////////////////////////////////
#define NS_IRUNNABLE_IID \
{ /* e06996e0-0d6b-11d3-9331-00104ba0fd40 */ \
0xe06996e0, \
0x0d6b, \
0x11d3, \
{0x93, 0x31, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}
class nsIRunnable : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IRUNNABLE_IID);
NS_IMETHOD Run() = 0;
};
////////////////////////////////////////////////////////////////////////////////
#define NS_ITHREAD_IID \
{ /* ecbb89e0-0d6b-11d3-9331-00104ba0fd40 */ \
0xecbb89e0, \
0x0d6b, \
0x11d3, \
{0x93, 0x31, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}
class nsIThread : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ITHREAD_IID);
// returns the nsIThread for the current thread:
static NS_COM nsresult GetCurrent(nsIThread* *result);
// returns the nsIThread for an arbitrary PRThread:
static NS_COM nsresult GetIThread(PRThread* prthread, nsIThread* *result);
// initializes the "main" thread (really, just saves the current thread
// at time of calling. meant to be called once at app startup, in lieu
// of proper static initializers, to save the primordial thread
// for later recall.)
static NS_COM nsresult SetMainThread();
// return the "main" thread
static NS_COM nsresult GetMainThread(nsIThread **result);
NS_IMETHOD Join() = 0;
NS_IMETHOD GetPriority(PRThreadPriority *result) = 0;
NS_IMETHOD SetPriority(PRThreadPriority value) = 0;
NS_IMETHOD Interrupt() = 0;
NS_IMETHOD GetScope(PRThreadScope *result) = 0;
NS_IMETHOD GetState(PRThreadState *result) = 0;
NS_IMETHOD GetPRThread(PRThread* *result) = 0;
};
extern NS_COM nsresult
NS_NewThread(nsIThread* *result,
nsIRunnable* runnable,
PRUint32 stackSize = 0,
PRThreadPriority priority = PR_PRIORITY_NORMAL,
PRThreadScope scope = PR_GLOBAL_THREAD,
PRThreadState state = PR_JOINABLE_THREAD);
////////////////////////////////////////////////////////////////////////////////
#define NS_ITHREADPOOL_IID \
{ /* 074d0170-0d6c-11d3-9331-00104ba0fd40 */ \
0x074d0170, \
0x0d6c, \
0x11d3, \
{0x93, 0x31, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}
/**
* A thread pool is used to create a group of worker threads that
* share in the servicing of requests. Requests are run in the
* context of the worker thread.
*/
class nsIThreadPool : public nsISupports
{
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ITHREADPOOL_IID);
NS_IMETHOD DispatchRequest(nsIRunnable* runnable) = 0;
NS_IMETHOD ProcessPendingRequests() = 0;
NS_IMETHOD Shutdown() = 0;
};
extern NS_COM nsresult
NS_NewThreadPool(nsIThreadPool* *result,
PRUint32 minThreads, PRUint32 maxThreads,
PRUint32 stackSize = 0,
PRThreadPriority priority = PR_PRIORITY_NORMAL,
PRThreadScope scope = PR_GLOBAL_THREAD);
////////////////////////////////////////////////////////////////////////////////
#endif // nsIThread_h__