Mercurial > hg
view tests/dummysmtpd.py @ 31397:8f5ed8fa39f8
perf: perform a garbage collection before each iteration
Currently, no explicit garbage collection is performed when running
the microbenchmarks in `hg perf`. I think this is wrong because
garbage collection can have a significant impact on execution times.
And, if gc is triggered via the default heuristics, it will
fire effectively randomly during subsequent benchmark iterations
due to variable amount of garbage left over from previous runs.
Running a gc before invoking the measured function will help ensure
state is more consistent across all iterations.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Mon, 13 Mar 2017 18:16:42 -0700 |
parents | d83ca854fa21 |
children | 75bae69747f0 |
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#!/usr/bin/env python """dummy SMTP server for use in tests""" from __future__ import absolute_import import asyncore import optparse import smtpd import ssl import sys from mercurial import ( server, sslutil, ui as uimod, ) def log(msg): sys.stdout.write(msg) sys.stdout.flush() class dummysmtpserver(smtpd.SMTPServer): def __init__(self, localaddr): smtpd.SMTPServer.__init__(self, localaddr, remoteaddr=None) def process_message(self, peer, mailfrom, rcpttos, data): log('%s from=%s to=%s\n' % (peer[0], mailfrom, ', '.join(rcpttos))) class dummysmtpsecureserver(dummysmtpserver): def __init__(self, localaddr, certfile): dummysmtpserver.__init__(self, localaddr) self._certfile = certfile def handle_accept(self): pair = self.accept() if not pair: return conn, addr = pair ui = uimod.ui.load() try: # wrap_socket() would block, but we don't care conn = sslutil.wrapserversocket(conn, ui, certfile=self._certfile) except ssl.SSLError: log('%s ssl error\n' % addr[0]) conn.close() return smtpd.SMTPChannel(self, conn, addr) def run(): try: asyncore.loop() except KeyboardInterrupt: pass def main(): op = optparse.OptionParser() op.add_option('-d', '--daemon', action='store_true') op.add_option('--daemon-postexec', action='append') op.add_option('-p', '--port', type=int, default=8025) op.add_option('-a', '--address', default='localhost') op.add_option('--pid-file', metavar='FILE') op.add_option('--tls', choices=['none', 'smtps'], default='none') op.add_option('--certificate', metavar='FILE') opts, args = op.parse_args() if opts.tls == 'smtps' and not opts.certificate: op.error('--certificate must be specified') addr = (opts.address, opts.port) def init(): if opts.tls == 'none': dummysmtpserver(addr) else: dummysmtpsecureserver(addr, opts.certificate) log('listening at %s:%d\n' % addr) server.runservice(vars(opts), initfn=init, runfn=run, runargs=[sys.executable, __file__] + sys.argv[1:]) if __name__ == '__main__': main()