Python-io multiplexing, select module

Trigger mechanism: 1) Horizontal trigger, 2) edge trigger

IO multiplexing single-threaded implementation of the module: 1) Select (lowest efficiency), 2) poll;3) Epoll (best, nginx implementation). There are 3 types of modules under Linux, and only the Select module under Windows

Benefits of IO Multiplexing: Multiple connections can be monitored simultaneously

IO multiplexing Select module trigger mechanism: Horizontal Trigger

PS: Asynchronous: The whole process, can not have a hint of blocking

Client side:

 import   Socketsk  = Socket.socket () Sk.connect (( "   127.0.0.1   ", 8801))  while   TRUE:INP  = input (" 
    >>>>   " " Sk.sendall (bytes (INP,   "  UTF8   " )) Data  = SK.RECV (1024)  print  (str (data,  

Server side:

ImportSocketImportSelectsk=socket.socket () Sk.bind ("127.0.0.1", 8801)) Sk.listen (5) Inputs=[SK,] whiletrue:r,w,e=select.select (inputs,[],[],5)     forObjinchR:#[SK,]        ifobj==Sk:conn,add=obj.accept ()Print(conn) inputs.append (conn)Else: Data_byte=OBJ.RECV (1024)            Print(Str (Data_byte,'UTF8')) InP=input ('Answer%s customer >>>'%inputs.index (obj)) obj.sendall (bytes (INP,'UTF8'))    Print('>>', R)

Python-io multiplexing, select module