android手机为服务器端,PC端软件为客户端
PC客户端通过socket发送数据给服务器端,服务器端一直接收不到数据,只有当PC客户端断开socket连接之后,
手机服务器端才接收到数据,请问是怎么回事?怎么处理,谢谢
代码如下:
android 手机端linux(server)int make_server_socket()
{
    int sockfd = socket(PF_INET, SOCK_STREAM, 0);
    struct sockaddr_in my_addr;
    memset(&my_addr, 0, sizeof(my_addr));
    my_addr.sin_family = AF_INET;
    my_addr.sin_port = htons(LISTENPORT);
    my_addr.sin_addr.s_addr = INADDR_ANY;    if(sockfd>0)
    {
        int on = 1;
        setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
        if(bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr))==0)
        {
            if(listen(sockfd, 0)==0)
            {
                // No error
            }
            else
            {
                close(sockfd);
                sockfd = -3;
            }
        }
        else
        {
            close(sockfd);
            sockfd = -2;
        }
    }    return sockfd;
}int accept_socket(int sockfd)
{
    // Block until connections
    struct sockaddr_in peer_addr;
    unsigned int sin_size = sizeof(peer_addr);
    int new_fd = accept(sockfd, (struct sockaddr *)&peer_addr, &sin_size);
    return new_fd;
}int recv_socket(int sockfd, void* buffer, int size)
{
int received = 0; while (buffer && received < size)
{
int result = recv(sockfd, buffer + received, size - received, MSG_NOSIGNAL);
if (result > 0)
{
received += result;
}
else
{
received = result;
break;
}
}
return received;
}
.............
    while (1)
    {
        listenfd = make_server_socket();
memset(receive_buffer,0,sizeof(receive_buffer));
        if (listenfd > 0)
        {
            while (1)
            {                tcpipfd = accept_socket(listenfd);
                
                if (tcpipfd > 0)
                {
                    len=recv_socket(tcpipfd, recmsg, BUF_LEN_1024);
                }
                else
                {
                    break;
                }
sleep(1);
            }
            close_socket(listenfd);
        }
        sleep(2);
    }
............
java客户端:    byte[] bs = new byte[] { (byte) 127, (byte) 0, 0, 1 };
    InetAddress addr = InetAddress.getByAddress(bs);
    pcsocket =new Socket(addr,port);    sender=new BufferedOutputStream(pcsocket.getOutputStream(),20);
    receiver=new BufferedInputStream(pcsocket.getInputStream(),20);        sender.write(data.getBytes(),0,data.length());
        sender.write('\n');
        sender.flush();