gevent-multiprocess

gevent-multiprocess.py

import sys
from gevent import server
from gevent.monkey import patch_all; patch_all()
from multiprocessing import Process, current_process, cpu_count


def note(format, *args):
    sys.stderr.write('[%s]\t%s\n' % (current_process().name, format%args))

def echo(socket, address):
    print 'New connection from %s:%s' % address
    fileobj = socket.makefile()
    fileobj.write('Welcome to the echo server! Type quit to exit.\r\n')
    fileobj.write('In %s\r\n' % current_process().name)
    fileobj.flush()
    while True:
        line = fileobj.readline()
        if not line:
            print "client disconnected"
            break
        if line.strip().lower() == 'quit':
            print "client quit"
            break
        fileobj.write(current_process().name + '\t' + line)
        fileobj.flush()
        print "echoed", repr(line)

s = server.StreamServer(('127.0.0.1', 8001), echo)
s.pre_start()

def serve_forever(server):
    note('starting server')
    try:
        server.start_accepting()
        try:
            server._stopped_event.wait()
        except:
            raise
    except KeyboardInterrupt:
        pass
    
number_of_processes = 5
print 'Starting %s processes' % number_of_processes
for i in range(number_of_processes):
    Process(target=serve_forever, args=(s,)).start()

s.serve_forever()

class GEventServer():
""" gevent wsgi服务器定义，可利用多进程
"""
def init(self,handler,host,port):
self.handler = handler
self.host = host
self.port = port

def start(self):
    from multiprocessing import Process
    from gevent import monkey
    monkey.patch_socket()
    monkey.patch_os()
    from gevent.wsgi import WSGIServer
    server = WSGIServer((self.host, self.port), self.handler)
    server.pre_start()
    def serve_forever():
        print 'starting server'
        try:
            server.start_accepting()

            try:
                server._stopped_event.wait()
            except:
                raise
        except KeyboardInterrupt:
            pass                
    for i in range(2):
        Process(target=serve_forever, args=tuple()).start()
    serve_forever()