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coreplugin: modularize shutdown routines, handle SIGTERM->shutdown

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Ref: #179
This commit is contained in:
James Lu 2016-03-27 21:45:38 -07:00
parent b100f30cfe
commit 58519011b8
1 changed files with 26 additions and 14 deletions
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40
coreplugin.py
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@ -4,11 +4,36 @@ coreplugin.py - Implements core PyLink functions as a plugin.
import gc
import sys
import signal
import utils
from log import log
import world
def _shutdown(irc=None):
"""Shuts down the Pylink daemon."""
for name, plugin in world.plugins.items():
# Before closing connections, tell all plugins to shutdown cleanly first.
if hasattr(plugin, 'die'):
log.debug('coreplugin: Running die() on plugin %s due to shutdown.', name)
try:
plugin.die(irc)
except: # But don't allow it to crash the server.
log.exception('coreplugin: Error occurred in die() of plugin %s, skipping...', name)
for ircobj in world.networkobjects.values():
# Disconnect all our networks. Disable auto-connect first by setting
# the time to negative.
ircobj.serverdata['autoconnect'] = -1
ircobj.disconnect()
def sigterm_handler(_signo, _stack_frame):
"""Handles SIGTERM gracefully by shutting down the PyLink daemon."""
log.info("Shutting down on SIGTERM.")
_shutdown()
signal.signal(signal.SIGTERM, sigterm_handler)
def handle_kill(irc, source, command, args):
"""Handle KILLs to the main PyLink client, respawning it as needed."""
if args['target'] == irc.pseudoclient.uid:
@ -199,20 +224,7 @@ def shutdown(irc, source, args):
log.info('(%s) SHUTDOWN requested by "%s!%s@%s", exiting...', irc.name, u.nick,
u.ident, u.host)
for name, plugin in world.plugins.items():
# Before closing connections, tell all plugins to shutdown cleanly first.
if hasattr(plugin, 'die'):
log.debug('coreplugin: Running die() on plugin %s due to shutdown.', name)
try:
plugin.die(irc)
except: # But don't allow it to crash the server.
log.exception('coreplugin: Error occurred in die() of plugin %s, skipping...', name)
for ircobj in world.networkobjects.values():
# Disconnect all our networks. Disable auto-connect first by setting
# the time to negative.
ircobj.serverdata['autoconnect'] = -1
ircobj.disconnect()
_shutdown(irc)
def load(irc, source, args):
"""<plugin name>.