Socket編程模型流程

 

連線導向協議的Socket編程模型：引用內容伺服器                                     客戶機 

Socket()
  ↓
bind()
  ↓
listen()
  ↓
accept()                                   socket()
  ↓                                              ↓
阻塞，等待客戶資料←建立串連---connect()
  ↓                                              ↓
recv()←----------請求資料-----send()
  ↓                                              ↓
send()-----------應答資料---→recv()
  ↓                                              ↓
close()                                      close()面向無連線協定的Socket編程模型：引用內容伺服器                                     客戶機 

Socket()
  ↓
bind()                                   socket()
  ↓                                          ↓
recvfrom()                            bind()         
  ↓                                          ↓
阻塞，等待客戶資料            ↓
  ↓←-----------建立串連---sendto()
  ↓                                          ↓
recv()←---------請求資料---send()
  ↓                                          ↓
處理服務要求                        ↓
  ↓                                          ↓
sendto()------服務應答-→recvfrom()
  ↓                                          ↓
close()                                 close()