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C++ OutputBuffer::switch_to_read方法代码示例

本文整理汇总了C++中OutputBuffer::switch_to_read方法的典型用法代码示例。如果您正苦于以下问题:C++ OutputBuffer::switch_to_read方法的具体用法?C++ OutputBuffer::switch_to_read怎么用?C++ OutputBuffer::switch_to_read使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在OutputBuffer的用法示例。


在下文中一共展示了OutputBuffer::switch_to_read方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: main


//.........这里部分代码省略.........
                                    myreader.pop();
                                }
                                if(!mybuffer.hasNext())
                                {
                                    cout <<"change state to finish"<<endl;
                                    state = SENT_FIN;
                                }
                            
                                //don't do write until you ack all the packets you just sent out
                                if(mybuffer.switch_to_write())
                                {
                                    cout << "SWITCH TO WRITE STATE " <<endl;
                                    FD_CLR(fd, &readFds);
                                    FD_SET(fd, &writeFds);
                                }
                                break;
                            }
                            case FINACK:
                            {
                                cout << "Receiving FINACK packet "<< ntohs(req_pkt.m_ack)<<endl;
                                finish = true;
                                FD_CLR(fd, &readFds);
                                break;
                            }
                            default:
                                break;
                        }
                    }
                    
                }
                
                else if(FD_ISSET(fd, &writeFds)) // writing, sendto cases
                {
                        cout <<"Do some write" <<endl;

                        HeaderPacket res_pkt;
                        switch(state)
                        {
                            case CONNECTED:
                            {
                                uint16_t seq = mybuffer.getNextSeqNo();
                                res_pkt = mybuffer.getPkt(seq); // initial sequence number
                            
                               // clock_t t = clock();
                                
                                ///mybuffer.record_start(seq, clock());
                                
                                cout << "Sending data packet " << seq << endl;
                                
                                /*
                                cout << "print out payload" <<endl;
                                int p_size = strlen(res_pkt.payload);
                                if(p_size >1024)
                                    p_size = 1024;
                                for (int i = 0; i<p_size; i++) {
                                    cout << res_pkt.payload[i];
                                }
                                cout << endl;
                                */
                                
                                res_pkt.m_flags = htons(0x0);
                                if(sendto(sockfd, &res_pkt, sizeof(res_pkt), 0, (struct sockaddr*) &clientAddr, clilen)<0)
                                {
                                    cerr << "Sendto fails" << endl;
                                    return 1;
                                }
                                if(mybuffer.switch_to_read())
                                {
                                    cout << "SWITCH TO READ STATE" <<endl;
                                    FD_CLR(fd, &writeFds);
                                    FD_SET(fd, &readFds);
                                }
                                break;
                            }
                            case SENT_FIN:
                            {
                                uint16_t seq = mybuffer.retcumulative();
                                res_pkt.m_seq = htons(seq);
                                //res_pkt.m_window = htons(getWindowSize());
                                res_pkt.m_ack = htons(0);
                                res_pkt.m_flags = htons(FIN);
                                cout << "Sending FIN packet " << seq << endl;
                                if(sendto(sockfd, &res_pkt, sizeof(res_pkt), 0, (struct sockaddr*) &clientAddr, clilen)<0)
                                {
                                    cerr << "Sendto fails" << endl;
                                    return 1;
                                }
                                FD_CLR(fd, &writeFds);
                                FD_SET(fd, &readFds);
                                break;
                            }
                        }
                            
                    }
            }
        }
     }
    
    close(sockfd);
    }
开发者ID:louis-wuitton,项目名称:CS-118,代码行数:101,代码来源:server-rto.cpp


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