TeamTalk 分析TTThread

本文介绍了一个用于Windows线程管理的封装类TTThread及其派生类TTHttpThread的设计与实现。TTThread简化了线程创建、销毁及同步操作,而TTHttpThread则针对HTTP请求处理进行了定制。

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/*******************************************************************************
 *  @file      TTThread.h 2014\7\1 16:04:05 $
 *  @author    快刀<kuaidao@mogujie.com>
 *  @brief   windows线程处理的包装
 ******************************************************************************/

#ifndef TTTHREAD_27D478B1_0BAD_4015_A6E5_8AF2DA7739BF_H__
#define TTTHREAD_27D478B1_0BAD_4015_A6E5_8AF2DA7739BF_H__

#include "GlobalDefine.h"
#include "utilityDll.h"
/******************************************************************************/
NAMESPACE_BEGIN(util)

/**
 * The class <code>TTThread</code> 
 *
 */
class UTILITY_CLASS TTThread
{
public:
    /** @name Constructors and Destructor*/

    //@{
    /**
     * Constructor 
     */
    TTThread();
    /**
     * Destructor
     */
    ~TTThread();
    //@}

public:
	BOOL create();
	void destory();
	BOOL wait(DWORD dwWaitTime);
	inline DWORD getThreadId() { return m_dwThreadID; }

protected:
	virtual UInt32 process();

private:
	static UInt32 __stdcall _threadProc(void *lpParam);

private:
	HANDLE		m_hThread;
	DWORD		m_dwThreadID;
};

NAMESPACE_END(util)
/******************************************************************************/
#endif// TTTHREAD_27D478B1_0BAD_4015_A6E5_8AF2DA7739BF_H__
</pre><pre code_snippet_id="1947715" snippet_file_name="blog_20161025_3_4295493" name="code" class="cpp">
<pre name="code" class="cpp">/******************************************************************************* 
 *  @file      TTThread.cpp 2014\7\1 16:04:19 $
 *  @author    快刀<kuaidao@mogujie.com>
 *  @brief   windows线程处理的包装
 ******************************************************************************/

#include "stdafx.h"
#include "utility/TTThread.h"

/******************************************************************************/
NAMESPACE_BEGIN(util)

// -----------------------------------------------------------------------------
//  TTThread: Public, Constructor

TTThread::TTThread()
:m_hThread(0)
{

}

// -----------------------------------------------------------------------------
//  TTThread: Public, Destructor

TTThread::~TTThread()
{
	if (m_hThread)
		::CloseHandle(m_hThread);
	m_hThread = 0;
}

BOOL TTThread::create()
{
	m_hThread = (HANDLE)_beginthreadex(0,0, _threadProc, this, 0, (unsigned*)&m_dwThreadID);

	if (m_hThread < (HANDLE)2)
	{
		m_hThread = 0;
		m_dwThreadID = 0;
	}

	return m_hThread >(HANDLE)1;
}

void TTThread::destory()
{
	if (m_hThread)
	{
		::TerminateThread(m_hThread, 0);
		WaitForSingleObject(m_hThread, 500);
		::CloseHandle(m_hThread);
		m_hThread = 0;
		m_dwThreadID = 0;
	}
}

BOOL TTThread::wait(DWORD dwWaitTime)
{
	if (m_hThread == 0)
		return TRUE;
	return (::WaitForSingleObject(m_hThread, dwWaitTime) != WAIT_TIMEOUT);
}

UInt32 TTThread::process()
{
	return 0;
}

UInt32 __stdcall TTThread::_threadProc(void *lpParam)
{
	TTThread* pThread = (TTThread*)lpParam;
	assert(pThread);
	if (pThread != 0)
	{
		pThread->process();
	}
	return 0;
}

NAMESPACE_END(util)
/******************************************************************************/

//使用,继承TTThread
class TTHttpThread : public util::TTThread
{
	//friend class HttpPoolModule_Impl;

public:
	TTHttpThread();
	void shutdown();

private:
	virtual UInt32 process();

private:
	BOOL            m_bContinue;
};
//实现
/******************************************************************************/

TTHttpThread::TTHttpThread()
:m_bContinue(TRUE)
{

}

void TTHttpThread::shutdown()
{
	if (!wait(2000))
		destory();
}

UInt32 TTHttpThread::process()
{
	module::IHttpOperation * pHttpOper = NULL;
	HttpPoolModule_Impl *pPool = m_pInstance;
	while (m_bContinue)
	{
		if (WAIT_OBJECT_0 != ::WaitForSingleObject(pPool->m_hSemaphore, INFINITE))
		{
			break;
		}

		if (!m_bContinue)
		{
			break;
		}

		{
			CAutoLock lock(&(pPool->m_mtxLock));
			if (pPool->m_lstHttpOpers.empty())
				pHttpOper = NULL;
			else
			{
				pHttpOper = pPool->m_lstHttpOpers.front();
				pPool->m_lstHttpOpers.pop_front();
			}
		}

		try
		{
			if (m_bContinue && pHttpOper)
			{
				pHttpOper->process();
				pHttpOper->release();
			}
		}
		catch (...)
		{
			LOG__(ERR, _T("TTHttpThread: Failed to execute opertaion(0x%p)"), pHttpOper);
		}
	}

	return 0;
}



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