C++ IOCP的内存使用

我将我们的代码转换为使用IOCP，通信相对稳定，但应用程序的内存使用正在增加。看起来我（在完成函数调用时）得到的OverlappedEx对象比我创建的要少得多。我的代码如下。我做错了什么

#ifndef NETWORK_DATA
#define NETWORK_DATA

#include <afxwin.h>
#include <vector>
#include <string>
#include "CriticalSectionLocker.h"

using namespace std;

DWORD NetworkManager::NetworkThread(void* param)
{
    bool bRun = true;


    while (bRun)
    {
        DWORD wait = ::WaitForSingleObject(CCommunicationManager::s_hShutdownEvent, 0);
        if (WAIT_OBJECT_0 == wait)
        {
            bRun = false;
            DEBUG_LOG0("Shutdown event was signalled thread");
        }
        else
        {
            DWORD dwBytesTransfered = 0;
            void* lpContext = nullptr;
            OVERLAPPED* pOverlapped = nullptr;

            BOOL bReturn = GetQueuedCompletionStatus(s_IOCompletionPort,
                                                    &dwBytesTransfered,
                                                    (LPDWORD)&lpContext,
                                                    &pOverlapped,
                                                    INFINITE);
            if (nullptr == lpContext)
            {
                DEBUG_LOG0("invalid context");
                /*continue;*/
            }
            else
            {
                if (bReturn && dwBytesTransfered > 0)
                {
                    OverlappedEx* data = reinterpret_cast<OverlappedEx*>(pOverlapped);
                    ServerData* networkData = reinterpret_cast<ServerData*>(lpContext);

                    if (networkData && data)
                    {                       
                        switch(data->m_opType)
                        {
                        case OverlappedEx::OP_READ:
                                /*DEBUG_LOG4("device name: %s bytes received: %d socket: %d handle: %d", 
                                    networkData->Name().c_str(), dwBytesTransfered, networkData->Socket(), networkData->Handle());*/
                                networkData->CompleteReceive(dwBytesTransfered, data);                              
                                break;
                            case OverlappedEx::OP_WRITE:
                                /*DEBUG_LOG4("device name: %s bytes sent: %d socket: %d handle: %d",
                                    networkData->Name().c_str(), dwBytesTransfered, networkData->Socket(), networkData->Handle());*/
                                networkData->CompleteSend(dwBytesTransfered, data);
                                break;
                        }
                    }
                }
                else
                {
                    /*DEBUG_LOG2("GetQueuedCompletionStatus failed: bReturn: %d dwBytesTransferred: %u", bReturn, dwBytesTransfered);*/
                }
            }
        }
    }
    return 0;
}


enum NetworkType
{
    UDP,
    TCP
};

struct OverlappedEx : public OVERLAPPED
{
    enum OperationType
    {
        OP_READ,
        OP_WRITE
    };  

    const static int MAX_PACKET_SIZE = 2048;
    WSABUF m_wBuf;
    char m_buffer[MAX_PACKET_SIZE];
    OperationType m_opType; 

    OverlappedEx()
    {       
        Clear();
        m_refCount = 1;
    }

    void AddRef()
    {
        ::InterlockedIncrement(&m_refCount);
    }

    void Release()
    {
        ::InterlockedDecrement(&m_refCount);
    }

    int Refcount() const
    {       
        return InterlockedExchangeAdd((unsigned long*)&m_refCount, 0UL);
    }

    ~OverlappedEx()
    {       
        Clear();        
    }

    void Clear()
    {
        memset(m_buffer, 0, MAX_PACKET_SIZE);
        m_wBuf.buf = m_buffer;
        m_wBuf.len = MAX_PACKET_SIZE;
        Internal = 0;
        InternalHigh = 0;
        Offset = 0;
        OffsetHigh = 0;
        hEvent = nullptr;
        m_opType = OP_READ;
    }

private:
    volatile LONG m_refCount;
};


class ServerData
{       
public:
    const static int MAX_REVEIVE_QUEUE_SIZE = 100;
    const static int MAX_PACKET_SIZE = 2048;
    const static int MAX_SEND_QUEUE_SIZE = 10;
    const static int MAX_RECEIVE_QUEUE_SIZE = 100;  
    const static int MAX_OVERLAPPED_STRUCTS = 20;   


    ServerData(NetworkType netType, const string& sName, CCommunicationManager::CommHandle handle,
                            SOCKET sock, HANDLE IOPort) :   
        m_sName(sName)
    {
        InitializeCriticalSection(&m_receiveQueLock);
        InitializeCriticalSection(&m_objectLock);
        m_Handle = handle;
        m_Socket = sock;
        m_nIPAddress = 0;           
        m_netType = netType;
        m_bEnabled = true;
        m_ovlpIndex = 0;

        for (int i = 0; i < MAX_OVERLAPPED_STRUCTS; ++i)
        {
            m_olps.push_back(new OverlappedEx);
        }

        /* Associate socket with completion handle */
        if (m_Socket != 0)
        {
            CreateIoCompletionPort( reinterpret_cast<HANDLE>(m_Socket), IOPort, reinterpret_cast<ULONG_PTR>(this), 0 );
        }
    }       

    ~ServerData()
    {           
        CriticalSectionLocker lock(&m_receiveQueLock);
        DeleteCriticalSection(&m_receiveQueLock);

        DeleteCriticalSection(&m_objectLock);
        closesocket(m_Socket);  
    }

    const string& Name() const { return m_sName; }
    bool Enabled() const { return m_bEnabled; }
    void SetEnabled(bool bEnabled)
    {
        m_bEnabled = bEnabled;
    }

    int Handle() const { return m_Handle; }
    void SetHandle(int handle)
    {
        m_Handle = handle;
    }

    unsigned long IPAddress() const { return m_nIPAddress; }

    SOCKET Socket() const
    {
        return m_Socket;
    }

    void SetSocket(SOCKET sock)
    {
        m_Socket = sock;
    }

    void SetIPAddress(unsigned long nIP)
    {
        m_nIPAddress = nIP;
    }       

    bool ValidTelegram(const vector<char>& telegram) const
    {
        return false;
    }

    OverlappedEx* GetBuffer()
    {
        OverlappedEx* ret = nullptr;

        if (!m_olps.empty())
        {
            ret = m_olps.front();
            m_olps.pop_front();
        }

        return ret;
    }


    void CompleteReceive(size_t numBytes, OverlappedEx* data)
    {       
        //DEBUG_LOG1("%d buffers are available", AvailableBufferCount());

        if (numBytes > 0)
        {   
            vector<char> v(data->m_buffer, data->m_buffer + numBytes);          
            ReceivedData rd;
            rd.SetData(v);
            EnqueReceiveMessage(rd);    
        }   

        data->Release();
        {
            CriticalSectionLocker lock(&m_objectLock);
            m_olps.push_back(data);
//          DEBUG_LOG1("Queue size: %d", m_olps.size());
        }

        StartReceiving();

    }

    void CompleteSend(size_t numBytes, OverlappedEx* data)
    {

        data->Release();    
        {
            CriticalSectionLocker lock(&m_objectLock);
            m_olps.push_back(data);
            //DEBUG_LOG1("Queue size: %d", m_olps.size());
        }

        //DEBUG_LOG2("Object: %s num sent: %d", Name().c_str(), numBytes);
    }

    void StartReceiving()
    {
        DWORD bytesRecv = 0;
        sockaddr_in senderAddr;
        DWORD flags = 0;
        int senderAddrSize = sizeof(senderAddr);
        int rc = 0;

        CriticalSectionLocker lock(&m_objectLock);
        auto olp = GetBuffer();
        if (!olp)
        {       
            if (...)
            {
                m_olps.push_back(new OverlappedEx);
                olp = GetBuffer();
            }
            else
            {
                if (...)
                {
                    DEBUG_LOG1("Name: %s ************* NO AVAILABLE BUFFERS - bailing ***************", Name().c_str());
                }
                return;
            }
        }

        olp->Clear();
        olp->m_opType = OverlappedEx::OP_READ;
        olp->AddRef();

        switch(GetNetworkType())
        {
        case UDP:
            {
                rc = WSARecvFrom(Socket(),
                                &olp->m_wBuf,
                                1,
                                &bytesRecv,
                                &flags,
                                (SOCKADDR *)&senderAddr,
                                &senderAddrSize, (OVERLAPPED*)olp, NULL);
            }
            break;
        case TCP:
            {
                rc = WSARecv(Socket(), 
                            &olp->m_wBuf,
                            1, 
                            &bytesRecv, 
                            &flags, 
                            (OVERLAPPED*)olp, NULL);
            }
            break;
        }

        if (SOCKET_ERROR == rc)
        {
            DWORD err = WSAGetLastError();
            if (err != WSA_IO_PENDING)
            {
                olp->Release();
                m_olps.push_back(olp);
            }
        }
    }


    void SetWriteBuf(const SendData& msg, OverlappedEx* data)
    {
        int len = min(msg.Data().size(), MAX_PACKET_SIZE);
        memcpy(data->m_buffer, &msg.Data()[0], len);
        data->m_wBuf.buf = data->m_buffer;
        data->m_wBuf.len = len;
    }

    void StartSending(const SendData& msg)
    {

        DEBUG_LOG1("device name: %s", Name().c_str());

        int rc = 0;
        DWORD bytesSent = 0;
        DWORD flags = 0;    
        SOCKET sock = Socket();

        int addrSize = sizeof(sockaddr_in);     

        CriticalSectionLocker lock(&m_objectLock);
        //UpdateOverlapped(OverlappedEx::OP_WRITE);

        auto olp = GetBuffer();
        if (!olp)
        {
            if (...)
            {
                m_olps.push_back(new OverlappedEx);
                olp = GetBuffer();
                DEBUG_LOG2("name: %s ************* NO AVAILABLE BUFFERS new size: %d ***************", Name().c_str(), m_olps.size());
            }
            else
            {
                if (...)
                {
                    DEBUG_LOG1("Name: %s ************* NO AVAILABLE BUFFERS - bailing ***************", Name().c_str());
                }
                return;
            }
        }

        olp->Clear();
        olp->m_opType = OverlappedEx::OP_WRITE;
        olp->AddRef();
        SetWriteBuf(msg, olp);

        switch(GetNetworkType())
        {
        case UDP:

            rc = WSASendTo(Socket(), &olp->m_wBuf, 1,
                            &bytesSent, flags, (sockaddr*)&msg.SendAddress(),
                            addrSize, (OVERLAPPED*)olp, NULL);
            break;
        case TCP:

            rc = WSASend(Socket(), &olp->m_wBuf, 1,
                        &bytesSent, flags, (OVERLAPPED*)olp, NULL);
            break;
        }

        if (SOCKET_ERROR == rc)
        {
            DWORD err = WSAGetLastError();
            if (err != WSA_IO_PENDING)
            {
                olp->Release();
                m_olps.push_back(olp);
            }
        }
    }

    size_t ReceiveQueueSize()
    {
        CriticalSectionLocker lock(&m_receiveQueLock);
        return m_receiveDataQueue.size();
    }

    void GetAllData(vector <ReceivedData> & data)
    {
        CriticalSectionLocker lock(&m_receiveQueLock);
        while (m_receiveDataQueue.size() > 0)
        {
            data.push_back(m_receiveDataQueue.front());
            m_receiveDataQueue.pop_front();
        }
    }

    void DequeReceiveMessage(ReceivedData& msg)
    {
        CriticalSectionLocker lock(&m_receiveQueLock);
        if (m_receiveDataQueue.size() > 0)
        {
            msg = m_receiveDataQueue.front();
            m_receiveDataQueue.pop_front();
        }
    }

    template <class T>
    void EnqueReceiveMessage(T&& data)
    {
        CriticalSectionLocker lock(&m_receiveQueLock);
        if (m_receiveDataQueue.size() <= MAX_RECEIVE_QUEUE_SIZE)
        {
            m_receiveDataQueue.push_back(data);
        }
        else
        {
            static int s_nLogCount = 0;
            if (s_nLogCount % 100 == 0)
            {
                DEBUG_LOG2("Max queue size was reached handle id: %d in %s", Handle(), Name().c_str());
            }
            s_nLogCount++;
        }
    }           

    NetworkType GetNetworkType() const
    {
        return m_netType;
    }   

private:        
    ServerData(const ServerData&);
    ServerData& operator=(const ServerData&);
private:
    bool m_bEnabled;                                                            //!< This member flags if this reciever is enabled for receiving incoming connections.
    int m_Handle;                                                   //!< This member holds the handle for this receiver.
    SOCKET m_Socket;                                                        //!< This member holds the socket information for this receiver.        
    unsigned long m_nIPAddress;                                             //!< This member holds an IP address the socket is bound to.
    deque < ReceivedData > m_receiveDataQueue;
    CRITICAL_SECTION m_receiveQueLock;  
    CRITICAL_SECTION m_objectLock;
    string m_sName; 
    NetworkType m_netType;
    deque<OverlappedEx*> m_olps;
    size_t m_ovlpIndex;
};


#endif

\ifndef网络数据
#定义网络数据
#包括
#包括
#包括
#包括“CriticalSectionLocker.h”
使用名称空间std；
DWORD NetworkManager:：NetworkThread（void*param）
{
布尔布伦=真；
while（bRun）
{
DWORD wait=：：WaitForSingleObject（CCommunicationManager:：ShshutdownEvent，0）；
if（WAIT_OBJECT_0==WAIT）
{
bRun=假；
DEBUG_LOG0（“向线程发送关闭事件信号”）；
}
其他的
{
DWORD DWBYTESTTRANSFERED=0；
void*lpContext=nullptr；
重叠*pOverlapped=nullptr；
BOOL bReturn=GetQueuedCompletionStatus（s_IOCompletionPort，
&DwByTestTransfer，
（LPDWORD）和lpContext，
&波弗雷普，
无限）；
if（nullptr==lpContext）
{
调试日志0（“无效上下文”）；
/*继续*/
}
其他的
{
if（bReturn&dwbytesttransfered>0）
{
OverlappedEx*数据=重新解释铸件（pOverlapped）；
ServerData*networkData=reinterpret\u cast（lpContext）；
if（网络数据和数据）
{                       
开关（数据->m_操作类型）
{
案例X：：OP_读取：
/*调试日志4（“设备名称：%s接收字节：%d套接字：%d句柄：%d”，
networkData->Name（）.c_str（），dwbytesttransfered，networkData->Socket（），networkData->Handle（）*/
networkData->CompleteReceive（DWByTestTransfered，数据）；
打破
案例X：：OP_WRITE：
/*调试日志4（“设备名称：%s已发送字节：%d套接字：%d句柄：%d”，
networkData->Name（）.c_str（），dwbytesttransfered，networkData->Socket（），networkData->Handle（）*/
networkData->CompleteSend（DWByTestTransfered，数据）；
打破
}
}
}
其他的
{
/*调试日志2（“GetQueuedCompletionStatus失败：返回：%d DwByTestTransfered:%u”，返回，DwByTestTransfered）*/
}
}
}
}
返回0；
}
枚举网络类型
{
UDP，
传输控制协议
};
结构重叠pedex：公共重叠
{
枚举操作类型
{
OP_READ，
OP_WRITE
};  
const static int MAX_PACKET_SIZE=2048；
WSABUF m_wBuf；
字符m_缓冲区[最大数据包大小]；
操作类型m_opType；
()
{       
清除（）；
m_refCount=1；
}
void AddRef（）
{
：：联锁增量（&m_refCount）；
}
无效释放（）
{
：：联锁减量（&m_refCount）；
}
int Refcount（）常量
{       
返回InterlocatedExchangeAdd（（无符号长*）&m_refCount，0UL）；
}
~x（）
{       
清除（）；
}
无效清除（）
{
memset（m_缓冲区，0，最大数据包大小）；
m_wBuf.buf=m_缓冲区；
m_wBuf.len=最大数据包大小；
内部=0；
内部高=0；
偏移量=0；
OffsetHigh=0；
hEvent=nullptr；
m_opType=OP_READ；
}
私人：
挥发性长m_参考计数；
};
类服务器数据
{       
公众：
const static int MAX_revive_QUEUE_SIZE=100；
const static int MAX_PACKET_SIZE=2048；
const static int MAX_SEND_QUEUE_SIZE=10；
const static int MAX_RECEIVE_QUEUE_SIZE=100；
const static int MAX_OVERLAPPED_STRUCTS=20；
ServerData（网络类型netType、常量字符串和sName、CCommunicationManager:：CommHandle、，
插座插座、手柄（端口）：
m_sName（sName）
{
初始化关键部分（&m_receiveQueLock）；
初始化CriticalSection（&m_objectLock）；
m_Handle=手柄；
m_插座=袜子；
m_nIPAddress=0；
m_netType=netType；
m_bEnabled=真；
m_ovlpIndex=0；
对于（int i=0；ivoid Release()
{
    if (!InterlockedDecrement(&m_refCount)) delete this;
}

OverlappedEx* data = static_cast<OverlappedEx*>(pOverlapped);

            olp->Release();
            m_olps.push_back(olp);