Socket Programming HOWTO
Socket Programming HOWTO¶ Author: Gordon McMillan Sockets¶ I’m only going to talk about INET (i.e. IPv4) sockets, but they account for at least 99% of the sockets in use. And I’ll only talk about STREAM (i.e. TCP) sockets - unless you really know what you’re doing (in which case this HOWTO isn’t for you!), you’ll get better behavior and performance from a STREAM socket than anything else. I will t
Scaling node.js to 100k concurrent connections!
UPDATE: Broke the 250k barrier, too :] The node.js powered sprites fun continues, with a new milestone: That’s right, 100,004 active connections! Note the low %CPU and %MEM numbers in the picture. To be fair, the CPU usage does wander between about 5% and 40% – but it’s also not a very beefy box. This is on a $0.12/hr rackspace 2GB cloud server. Each connection simulates sending a single sprite ev
Server program を Thread に頼らず作る - merblog
訳あって、Server program を Thread に頼らず、fork を使って作ってみることにした。 #!/usr/bin/env ruby require "socket" require 'time' Signal.trap('CHLD') do puts "waiting" Process.waitall end print $$.to_s + ": parent pid\n" accepter = TCPserver.open(12345) loop do io = accepter.accept fork do io.write(Time.now.iso8601 + "\n") io.close print $$.to_s + ": child pid after fork\n" exit!(0) end io.close print $$.to_s + ": paren
Python/Snippet/ネットワーク – アクセンスのおまけ
import socket sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(10) try: r = sock.connect(('127.0.0.1', 12345)) sock.send('test message') except socket.error, e: print 'Error: %s' % e import socket sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.bind(('127.0.0.1', 12345)) sock.listen(1) try: while True:
socket — Network Communication — PyMOTW 3
The socket module exposes the low-level C API for communicating over a network using the BSD socket interface. It includes the socket class, for handling the actual data channel, and also includes functions for network-related tasks such as converting a server’s name to an address and formatting data to be sent across the network. See also Standard library documentation for socket Python 2 to 3 po
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