Package cherrypy :: Package process :: Module plugins :: Class SignalHandler

Class SignalHandler

object --+
         |
        SignalHandler

Register bus channels (and listeners) for system signals.

By default, instantiating this object subscribes the following signals
and listeners:

    TERM: bus.exit
    HUP : bus.restart
    USR1: bus.graceful

Instance Methods

[hide private]

__init__(self, bus)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

subscribe(self)

source code

unsubscribe(self)

source code

set_handler(self, signal, listener=None)
Subscribe a handler for the given signal (number or name).

source code

_handle_signal(self, signum=None, frame=None)
Python signal handler (self.set_handler subscribes it for you).

source code

handle_SIGHUP(self)

source code

Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Class Variables

[hide private]

signals = {1: 'SIGHUP', 2: 'SIGINT', 3: 'SIGQUIT', 4: 'SIGILL'...

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self, bus)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

set_handler(self, signal, listener=None)

source code

Subscribe a handler for the given signal (number or name).

If the optional 'listener' argument is provided, it will be subscribed as a listener for the given signal's channel.

If the given signal name or number is not available on the current platform, ValueError is raised.

Class Variable Details

[hide private]

signals

Value:

{1: 'SIGHUP',
 2: 'SIGINT',
 3: 'SIGQUIT',
 4: 'SIGILL',
 5: 'SIGTRAP',
 6: 'SIGABRT',
 7: 'SIGBUS',
 8: 'SIGFPE',
...

Class SignalHandler

__init__(self, bus) (Constructor)

set_handler(self, signal, listener=None)

signals

init(self, bus)
(Constructor)