Multithreaded Non-blocking Socket Server and Client, Based on Synchronized Socket

• Download source files - 8.47 Kb
• Download demo project - 28.3 Kb

Introduction

Client

Just derive a child CTestClient class from CSyncSocketWorker and override its virtual function ProcessData.

void CTestClient::ProcessData()
{
     const int nBufferSize = 8192;
    char szBuffer[nBufferSize];

    CFile file;
    file.Open(TEXT("recv.dat"), CFile::modeCreate | CFile::modeWrite);
    int nRead;

    DWORD dwStart = GetTickCount();
    while(nRead = Read(szBuffer, nBufferSize))
    {
        file.Write(szBuffer, nRead);
        if(IsShutingdown())
        {
            cout << "shuting down" << endl;
            break;
        }
    }

    cout << "Speed = " << double(file.GetLength()) / 
                  (double(GetTickCount() - dwStart) / 1000.0) / 1024 
         << "KB/s" << endl;
    file.Close();
}

Server

Same as client.

void CEchoWorker::ProcessData()
{
     const int nBufferSize = 4096;
    
    char* pBuffer = new char[nBufferSize];
    if(!pBuffer)
        return;


    CFile file;
    file.Open(TEXT("testfile.dat"), CFile::modeRead);
    
    while(!IsShutingdown() && IsConnected())
    {
        int nRead = file.Read(pBuffer, nBufferSize);
        if(nRead == 0)
            break;

        Write(pBuffer, nRead, FALSE);
    }

    SendRightNow();

    while(!IsSendBufferEmpty() && IsConnected())
        Sleep(500);

    delete [] pBuffer;
}

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