网络编程学习笔记6-TCP正确使用

void sender(const char* filename, TcpStreamPtr stream)
{
    FILE* fp=fopen(filename, "rb");
    if(!fp)
        return;
    printf("Sleeping 10 seconds.\n");
    sleep(10);

    printf("Start sending file %s\n", filename);
    char buf[8192];
    size_t nr=0;
    while(nr=fread(buf, 1, sizeof(buf), fp > 0))
    {
        stream->sendAll(buf, nr);
    }
    fclose(fp);
    printf("Finish sending file %s\n", filename);

    //正确关闭TCP连接
    printf("Shutdown write and read until EOF\n");
    sream->shutdownWrite();  //如果不在这关闭写端，会导致TCP会提前关闭
    while(nr=stream->receiveSome(buf, sizeof(buf)) > 0)
    {
        //do something
    }
    printf("All done");

    //接收完文件后再断开TCP连接

}