4 ms·

Building an Echo Server Using Tornado

37 points by superjared 17y ago

rackerhacker 17y ago
Tornados are dangerous, but I'm glad you're eager to serve their echos.
- tzury 17y ago
  this is a nice joke. wondering why do hackers vote that down
acangiano 17y ago
Echo Server in Twisted Matrix: from twisted.internet import protocol, reactor class Echo(protocol.Protocol): def dataReceived(self, data): self.transport.write(data) if __name__ == '__main__': factory = protocol.ServerFactory() factory.protocol = Echo reactor.listenTCP(8000,factory) reactor.run()
- clemesha 17y ago
  Exactly, thanks for posting this (you beat me to it). It's not that we need to constantly respond to every Tornado post with a Twisted rebuttal - but it is appropriate to respond to articles the contain FUD and demonstrate far less elegant, far more verbose, non cross-platform solutions.
  - deleted 17y ago
    [deleted]
- tzury 17y ago
  Yet, it is just nice seeing how tornado can be re-used outside the core web development.
mcav 17y ago
Echo Server in Eventlet (http://eventlet.net/ http://eventlet.net/): from eventlet import api def handle_socket(address): sock, ip = address while True: sock.send(sock.recv(1)) api.tcp_server(api.tcp_listener(('0.0.0.0', 6000)), handle_socket)
- blasdel 17y ago
  You can destructure the address tuple in the arguments: def handle_socket((sock, ip)): while True: sock.send(sock.recv(1))
  - mcav 17y ago
    Yeah; I didn't want to confuse people who don't know that Eventlet's API passes a tuple (they might think it sends handle_socket 2 arguments)
antirez 17y ago
Echo server in 10-years old Tcl (more?): socket -server acceptConnections 9999 proc acceptConnections {fd clientaddr clientport} { fconfigure $fd -blocking 0 fileevent $fd readable [list replyToClient $fd] } proc replyToClient fd { set s [read $fd] puts -nonewline $fd $s flush $fd } vwait forever Note that this is a multiplexing non blocking server, exactly like Twisted / Tornado. All features built-in in the language. Tcl failed copying the obvious missing features from other languages. Other languages are failing copying the good things from Tcl. p.s. note the poetry contained in the "vwait forever" statement ;) Our program is willing to run without stop until the end of the universe.

37 points by superjared 17y ago

rackerhacker 17y ago

Tornados are dangerous, but I'm glad you're eager to serve their echos.

tzury 17y ago
this is a nice joke. wondering why do hackers vote that down

acangiano 17y ago

Echo Server in Twisted Matrix: from twisted.internet import protocol, reactor class Echo(protocol.Protocol): def dataReceived(self, data): self.transport.write(data) if __name__ == '__main__': factory = protocol.ServerFactory() factory.protocol = Echo reactor.listenTCP(8000,factory) reactor.run()

clemesha 17y ago
Exactly, thanks for posting this (you beat me to it). It's not that we need to constantly respond to every Tornado post with a Twisted rebuttal - but it is appropriate to respond to articles the contain FUD and demonstrate far less elegant, far more verbose, non cross-platform solutions.
- deleted 17y ago
  [deleted]
tzury 17y ago
Yet, it is just nice seeing how tornado can be re-used outside the core web development.

mcav 17y ago

Echo Server in Eventlet (http://eventlet.net/ http://eventlet.net/): from eventlet import api def handle_socket(address): sock, ip = address while True: sock.send(sock.recv(1)) api.tcp_server(api.tcp_listener(('0.0.0.0', 6000)), handle_socket)

blasdel 17y ago
You can destructure the address tuple in the arguments: def handle_socket((sock, ip)): while True: sock.send(sock.recv(1))
- mcav 17y ago
  Yeah; I didn't want to confuse people who don't know that Eventlet's API passes a tuple (they might think it sends handle_socket 2 arguments)

antirez 17y ago

Echo server in 10-years old Tcl (more?): socket -server acceptConnections 9999 proc acceptConnections {fd clientaddr clientport} { fconfigure $fd -blocking 0 fileevent $fd readable [list replyToClient $fd] } proc replyToClient fd { set s [read $fd] puts -nonewline $fd $s flush $fd } vwait forever Note that this is a multiplexing non blocking server, exactly like Twisted / Tornado. All features built-in in the language. Tcl failed copying the obvious missing features from other languages. Other languages are failing copying the good things from Tcl. p.s. note the poetry contained in the "vwait forever" statement ;) Our program is willing to run without stop until the end of the universe.