# Copyright (C) 2002 John Goerzen
# Thread support module
# <jgoerzen@complete.org>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

from threading import *

def semaphorereset(semaphore, originalstate):
    """Wait until the semaphore gets back to its original state -- all acquired
    resources released."""
    for i in range(originalstate):
        semaphore.acquire()
    # Now release these.
    for i in range(originalstate):
        semaphore.release()
        
def semaphorewait(semaphore):
    semaphore.acquire()
    semaphore.release()
    
def threadsreset(threadlist):
    for thread in threadlist:
        thread.join()