closesocket（）失敗，WSAEOPNOTSUPP

我有一個應用程序使用套接字（我沒有寫，所以忍受着我），當我嘗試關閉套接字時，closesocket（）失敗，錯誤WSAEOPNOTSUPP和套接字...在，它並沒有完全刪除。closesocket（）失敗，WSAEOPNOTSUPP

套接字創建如下：

bool Socket::CreateConnection() 
{ 
    int error; 
    struct addrinfo hints; 
    struct addrinfo *list = NULL; 

    memset(&hints, 0, sizeof(hints)); 
    hints.ai_family = AF_INET; 
    hints.ai_socktype = SOCK_STREAM; 
    hints.ai_protocol = IPPROTO_TCP; 

    error = getaddrinfo(socketAddress.c_str(), socketPort.c_str(), &hints, &list); 
    if (error) 
    { 
     Log().RecordError("Unable to initialize connection to server", WSAGetLastError(), EventTypeError); 
    } 

    for (struct addrinfo *ptr = list; ptr != NULL; ptr = ptr->ai_next) 
    { 
     connection = socket(ptr->ai_family, ptr->ai_socktype, ptr->ai_protocol); 
     if (connection == INVALID_SOCKET) 
     { 
     Log().RecordError("Unable to initialize socket connection", WSAGetLastError(), EventTypeError); 
     break; 
     } 

     error = connect(connection, ptr->ai_addr, (int)ptr->ai_addrlen); 
     if (error == SOCKET_ERROR) 
     { 
     closesocket(connection); 
     connection = INVALID_SOCKET; 
     continue; 
     } 
     break; 
    } 

    freeaddrinfo(list); 

    return connection != INVALID_SOCKET; 
}

以及類析構函數：

Socket::~Socket() 
{ 
    int error; 

    if (connection != INVALID_SOCKET) 
    { 
     continueReading = false; 

     error = shutdown(connection, SD_SEND); 
     if (error != SOCKET_ERROR) 
     { 
     /* Finish any necessary receives to politely close the socket */ 
     int length; 
     do 
     { 
      char buffer[1024]; 
      length = recv(connection, buffer, sizeof(buffer)/sizeof(*buffer), MSG_WAITALL); 
     } while (length > 0); 
     } 
     else 
     { 
     Log().RecordError("Error shutting down connection to server", WSAGetLastError(), EventTypeError); 
     } 

     closesocket(connection); //Fails HERE 
     int wsa_err = WSAGetLastError(); 
     if(wsa_err) 
      Log().RecordError("closesocket() error", wsa_err, EventTypeError); 
    } 

    if (winsockInitialized) 
    { 
     WSACleanup(); 
    } 
}

任何人都有一個線索，爲什麼會發生這種情況？

來源

2009-05-18 Adam Haile