twisted.internet.kqreactor.install

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1 Examples 7

0 Source : choosereactor.py
with MIT License
from fbla-competitive-events

def install_optimal_reactor(verbose=False):
    """
    Try to install the optimal Twisted reactor for this platform.

    :param verbose: If ``True``, print what happens.
    :type verbose: bool
    """
    log = txaio.make_logger()

    import sys
    from twisted.python import reflect

    # determine currently installed reactor, if any
    ##
    if 'twisted.internet.reactor' in sys.modules:
        current_reactor = reflect.qual(sys.modules['twisted.internet.reactor'].__class__).split('.')[-1]
    else:
        current_reactor = None

    # depending on platform, install optimal reactor
    ##
    if 'bsd' in sys.platform or sys.platform.startswith('darwin'):

        # *BSD and MacOSX
        ##
        if current_reactor != 'KQueueReactor':
            try:
                from twisted.internet import kqreactor
                kqreactor.install()
            except:
                log.critical("Running on *BSD or MacOSX, but cannot install kqueue Twisted reactor")
                log.warn("{tb}", tb=traceback.format_exc())
            else:
                log.debug("Running on *BSD or MacOSX and optimal reactor (kqueue) was installed.")
        else:
            log.debug("Running on *BSD or MacOSX and optimal reactor (kqueue) already installed.")

    elif sys.platform in ['win32']:

        # Windows
        ##
        if current_reactor != 'IOCPReactor':
            try:
                from twisted.internet.iocpreactor import reactor as iocpreactor
                iocpreactor.install()
            except:
                log.critical("Running on Windows, but cannot install IOCP Twisted reactor")
                log.warn("{tb}", tb=traceback.format_exc())
            else:
                log.debug("Running on Windows and optimal reactor (ICOP) was installed.")
        else:
            log.debug("Running on Windows and optimal reactor (ICOP) already installed.")

    elif sys.platform.startswith('linux'):

        # Linux
        ##
        if current_reactor != 'EPollReactor':
            try:
                from twisted.internet import epollreactor
                epollreactor.install()
            except:
                log.critical("Running on Linux, but cannot install Epoll Twisted reactor")
                log.warn("{tb}", tb=traceback.format_exc())
            else:
                log.debug("Running on Linux and optimal reactor (epoll) was installed.")
        else:
            log.debug("Running on Linux and optimal reactor (epoll) already installed.")

    else:
        try:
            from twisted.internet import default as defaultreactor
            defaultreactor.install()
        except:
            log.critical("Could not install default Twisted reactor for this platform")
            log.warn("{tb}", tb=traceback.format_exc())

    from twisted.internet import reactor
    txaio.config.loop = reactor


def install_reactor(explicit_reactor=None, verbose=False):