53 lines
2.0 KiB
Python
53 lines
2.0 KiB
Python
# Copyright (c) 2008-2009 AG Projects
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# Author: Denis Bilenko
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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"""Spawn multiple workers and collect their results.
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Demonstrates how to use eventlet.green package and proc module.
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"""
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from eventlet import proc
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from eventlet.green import socket
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# this example works with both standard eventlet hubs and with twisted-based hub
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# uncomment the following line to use twisted hub
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#from twisted.internet import reactor
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def geturl(url):
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c = socket.socket()
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ip = socket.gethostbyname(url)
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c.connect((ip, 80))
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print '%s connected' % url
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c.send('GET /\r\n\r\n')
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return c.recv(1024)
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urls = ['www.google.com', 'www.yandex.ru', 'www.python.org']
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jobs = [proc.spawn(geturl, x) for x in urls]
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print 'spawned %s jobs' % len(jobs)
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# collect the results from workers
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results = proc.waitall(jobs)
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# Note, that any exception in the workers will be reraised by waitall
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# unless trap_errors argument specifies otherwise
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for url, result in zip(urls, results):
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print '%s: %s' % (url, repr(result)[:50])
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