Limnoria/src/world.py

#!/usr/bin/env python

###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions, and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###

"""
Module for general worldly stuff, like global variables and whatnot.
"""

import fix

import gc
import os
import sre
import time
import types
import atexit
import threading

import conf
import debug

startedAt = 0.0

mainThread = threading.currentThread()

threadsSpawned = 1 # Starts at one for the initial "thread."
commandsProcessed = 0
###
# End Global Values.
###

ircs = []

flushers = [] # A periodic function will flush all these.

def flush():
    """Flushes all the registered flushers."""
    for f in flushers:
        f()

tempvars = {} # A storage place for temporary variables that need to be
              # globally accessible.


def upkeep(): # Function to be run on occasion to do upkeep stuff.
    """Does upkeep (like flushing, garbage collection, etc.)"""
    collected = gc.collect()
    if os.name == 'nt':
        try:
            import msvcrt
            msvcrt.heapmin()
        except ImportError:
            pass
        except IOError: # Win98 sux0rs!
            pass
    if gc.garbage:
        debug.msg('Uncollectable garbage: %s' % gc.garbage, 'normal')
    if 'noflush' not in tempvars:
        flush()
    debug.msg('Regexp cache size: %s' % len(sre._cache), 'verbose')
    msg = '%s upkeep ran.' % time.strftime(conf.logTimestampFormat)
    debug.msg(msg, 'verbose')
    return collected

def makeIrcsDie():
    for irc in ircs[:]:
        irc.die()

def startDying():
    global dying
    dying = True

atexit.register(upkeep)
atexit.register(makeIrcsDie)
atexit.register(startDying)

##################################################
##################################################
##################################################
## Don't even *think* about messing with these. ##
##################################################
##################################################
##################################################
startup = False
testing = False
dying = False

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