Question

我想知道为什么我没有收到服务器的即时反馈，以及客户端没有从服务器接收数据的原因。

- 这是我服务器的相关代码

//create a connection socket and connect to oncoming request
SOCKET connectionSocket;


while (1){

    connectionSocket = SOCKET_ERROR;
    while (connectionSocket == SOCKET_ERROR)
    {
        connectionSocket = connect(sockDescript, NULL, NULL);
        if (connectionSocket == 0){
            printf("Client connected\n");
            sockDescript = connectionSocket;
            break;
        }
    }



    break;
}
//Send receive stuff
int bytesSent = SOCKET_ERROR;
int bytesReceived = SOCKET_ERROR;
char bytesToSend[] = "This is Alan's server";
char bytesToReceive[300];
while (bytesReceived == SOCKET_ERROR){
bytesReceived = recv(sockDescript, bytesToReceive, 300, 0);
if (bytesReceived == SOCKET_ERROR)
{
    printf("No bytes received\n");
    printf("%u", WSAGetLastError());
    WSACleanup();
    break;

}
else
{
    printf("RECEIVED : %u\n", bytesReceived);
    printf("Here is the data : %u\n", bytesToReceive);
}

}
    while (bytesSent == SOCKET_ERROR)
    {

    bytesSent = send(sockDescript, bytesToSend, strlen(bytesToSend), 0);
    if (bytesSent == SOCKET_ERROR)
    {
        printf("Failed to send bytes\n");
    }
    else
    {
        printf("Bytes were sent\n");
    }

}
system("pause");
}

- 这是客户端的代码

//create a socket for connections
SOCKET sockDescriptor;
sockDescriptor = sockDescriptor = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

if ( sockDescriptor== INVALID_SOCKET){
    printf("SOCKET creation failed\n");
}
else
{
    printf("Socket created succesfully\n");
}
//connect to a server
SOCKADDR_IN clientSocket;

clientSocket.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
clientSocket.sin_port = htons(5555);
clientSocket.sin_family = AF_INET;

if ((connect(sockDescriptor, (SOCKADDR*)&clientSocket, sizeof(clientSocket))) == SOCKET_ERROR)
{
    printf("Connection failed\n");
    WSACleanup();
    return;
}
else
{
    printf("Connection established\n");

}
//SEND AND RECEIVE DATA
int bytesSent = SOCKET_ERROR;
int bytesReceived = SOCKET_ERROR;
char bytesToSend[] = "Hello there Server reply if ya hear me";
char bytesRev[200];
while (bytesSent == SOCKET_ERROR)
{
    bytesSent = send(sockDescriptor, bytesToSend, strlen(bytesToSend), 0);
    if (bytesSent == SOCKET_ERROR){
        printf("Data delivery was unsuccessful");
    }
    else
    {
        printf("Data sent\n");
    }

}

while(bytesReceived == SOCKET_ERROR)
{
    bytesReceived = recv(sockDescriptor, bytesRev, 32, 0);
    if (bytesReceived == 0 || bytesReceived == WSAECONNRESET){
        printf("NO bytes returned or connection reset\n");
    }
    else
    {
        printf("here is the returned message\n : %u\n", bytesRev);
        break;
    }

}



}

- 来自服务器的输出

＆GT;套接字已成功创建
＆GT;套接字绑定成功
＆GT; Socket正在听先生

- 来自客户的输出

成功创建套接字
已建立连接
发送数据

没有收到服务器或客户端的即时反馈

0 个答案: