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delete busMsg
でアプリケーションを一定期間実行するとエラーが発生します。エラーの原因を理解できません。これは正しいプロデューサコンシューマモデルではないのですが、stlキューを使用するとエラーの原因は何ですか?
#include "stdafx.h"
#include "queue.h"
#include <queue>
#include <iostream>
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CWinApp theApp;
using namespace std;
CRITICAL_SECTION m_csReceivedMsgQueue;
HANDLE m_hReceivedDataEvent;
HANDLE m_hEventStop;
queue<CBusMsg* > m_qReceivedMsgQueue;
class CBusMsg
{
public:
CBusMsg(WORD nAgentID, WORD nAgentExclue, BYTE* pBuf,int nLen)
{
m_nAgentID=nAgentID;
m_nAgentExclue=nAgentExclue;
m_nLen=nLen;
m_pBuf=new BYTE[m_nLen];
memcpy(m_pBuf,pBuf,nLen);
}
~CBusMsg()
{
if (m_pBuf!=NULL)
delete[] m_pBuf;
}
WORD m_nAgentID; //0:群发,其它:单播
WORD m_nAgentExclue;
BYTE* m_pBuf;
int m_nLen;
};
UINT SendhreadProc(LPVOID pParam)
{
HANDLE hWaitObjList[2]={m_hEventStop,m_hReceivedDataEvent};
bool haveData = false;
DWORD dwWaitRes;
for(;;)
{
if(haveData)//如果还有未处理的数据不等待内核对象直接返回
{
dwWaitRes=::WaitForMultipleObjects(2,hWaitObjList,FALSE,0);
}
else//如果没有未处理的数据不等待内核对象直接返回
{
dwWaitRes=::WaitForMultipleObjects(2,hWaitObjList,FALSE,200);
}
if((dwWaitRes-WAIT_OBJECT_0)==0)//,索引为0的内核对象被触发,也就是停止线程被触发
{
break;
}
haveData = false;
try
{
EnterCriticalSection(&m_csReceivedMsgQueue);
if(m_qReceivedMsgQueue.empty())
{
LeaveCriticalSection(&m_csReceivedMsgQueue);
continue;
}
CBusMsg*& busMsg = m_qReceivedMsgQueue.front();//取队首元素
m_qReceivedMsgQueue.pop();//弹出队首元素
if(NULL==busMsg)
{
LeaveCriticalSection(&m_csReceivedMsgQueue);
continue;
}
//ASSERT(busMsg->m_nLen<=0);
//pAgent->SetData(busMsg->m_pBuf,busMsg->m_nLen);
haveData = !m_qReceivedMsgQueue.empty();
LeaveCriticalSection(&m_csReceivedMsgQueue);
//**************There is the error********************/
delete busMsg;
//********************************************************/
//busMsg = NULL;
//ProcessData(pAgent);
}
catch(...)
{
LeaveCriticalSection(&m_csReceivedMsgQueue);
}
}
//delete pAgent;
return 0;
}
UINT PushData(LPVOID pParam)
{
BYTE pPacket[1000];
memset(pPacket,0,1000);
for (int i=0;i<100000;i++)
{
CBusMsg *pBusMsg;
pPacket[0]= i;
pBusMsg=new CBusMsg(i,0,pPacket,1000);
TRACE("请求向队列加消息\n");
EnterCriticalSection(&m_csReceivedMsgQueue);
TRACE("开始向队列加消息\n");
m_qReceivedMsgQueue.push(pBusMsg);
LeaveCriticalSection(&m_csReceivedMsgQueue);
SetEvent(m_hReceivedDataEvent);
}
return 0;
}
int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
int nRetCode = 0;
InitializeCriticalSection(&m_csReceivedMsgQueue);
HMODULE hModule = ::GetModuleHandle(NULL);
m_hReceivedDataEvent =::CreateEvent(NULL,FALSE,FALSE,NULL);
m_hEventStop=::CreateEvent(NULL,FALSE,FALSE,NULL);
//创建发送线程
CWinThread* m_pSendThread=AfxBeginThread(SendhreadProc,NULL,THREAD_PRIORITY_NORMAL,0,CREATE_SUSPENDED,NULL);
m_pSendThread->m_bAutoDelete=FALSE;
m_pSendThread->ResumeThread();
CWinThread* processThread=AfxBeginThread(PushData,NULL,THREAD_PRIORITY_NORMAL,0,CREATE_SUSPENDED,NULL);
processThread->m_bAutoDelete=FALSE;
processThread->ResumeThread();
char str[1000];
cin.getline(str,900);
return nRetCode;
}
はい、私は参照を取らない、それはクラッシュしません。しかし、それは毎回クラッシュしなかったのですか?もっと詳しく説明できますか? – liu
更新された回答。 – Surt
ええ、私はそれを得る。非常にありがとう! – liu