app.py 文件源码

def runWithHotshot(reactor, config):
    """Run reactor under hotshot profiler."""
    try:
        import hotshot.stats
    except ImportError, e:
        s = "Failed to import module hotshot: %s" % e
        s += """
This is most likely caused by your operating system not including
profile.py due to it being non-free. Either do not use the option
--profile, or install profile.py; your operating system vendor
may provide it in a separate package.
"""
        traceback.print_exc(file=log.logfile)
        log.msg(s)
        log.deferr()
        sys.exit('\n' + s + '\n')

    # this writes stats straight out
    p = hotshot.Profile(config["profile"])
    p.runcall(reactor.run)
    if config["savestats"]:
        # stats are automatically written to file, nothing to do
        return
    else:
        s = hotshot.stats.load(config["profile"])
        s.strip_dirs()
        s.sort_stats(-1)
        tmp, sys.stdout = sys.stdout, open(config['profile'], 'w')
        s.print_stats()
        sys.stdout, tmp = tmp, sys.stdout
        tmp.close()