monkey.py 文件源码

def patch_all(socket=True, dns=True, time=True, select=True, thread=True, os=True, ssl=True, httplib=False,
              subprocess=True, sys=False, aggressive=True, Event=False,
              builtins=True, signal=True):
    """
    Do all of the default monkey patching (calls every other applicable
    function in this module).

    .. versionchanged:: 1.1
       Issue a :mod:`warning <warnings>` if this function is called multiple times
       with different arguments. The second and subsequent calls will only add more
       patches, they can never remove existing patches by setting an argument to ``False``.
    .. versionchanged:: 1.1
       Issue a :mod:`warning <warnings>` if this function is called with ``os=False``
       and ``signal=True``. This will cause SIGCHLD handlers to not be called. This may
       be an error in the future.
    """
    # Check to see if they're changing the patched list
    _warnings, first_time = _check_repatching(**locals())
    if not _warnings and not first_time:
        # Nothing to do, identical args to what we just
        # did
        return

    # order is important
    if os:
        patch_os()
    if time:
        patch_time()
    if thread:
        patch_thread(Event=Event)
    # sys must be patched after thread. in other cases threading._shutdown will be
    # initiated to _MainThread with real thread ident
    if sys:
        patch_sys()
    if socket:
        patch_socket(dns=dns, aggressive=aggressive)
    if select:
        patch_select(aggressive=aggressive)
    if ssl:
        patch_ssl()
    if httplib:
        raise ValueError('gevent.httplib is no longer provided, httplib must be False')
    if subprocess:
        patch_subprocess()
    if builtins:
        patch_builtins()
    if signal:
        if not os:
            _queue_warning('Patching signal but not os will result in SIGCHLD handlers'
                           ' installed after this not being called and os.waitpid may not'
                           ' function correctly if gevent.subprocess is used. This may raise an'
                           ' error in the future.',
                           _warnings)
        patch_signal()

    _process_warnings(_warnings)