Source code for pysap.utils
# encoding: utf-8
# pysap - Python library for crafting SAP's network protocols packets
#
# 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.
#
# Author:
# Martin Gallo (@martingalloar)
# Code contributed by SecureAuth to the OWASP CBAS project
#
# Standard imports
from Queue import Queue
from threading import Thread, Event
[docs]class Worker(Thread):
"""Thread Worker
It runs a function into a new thread.
"""
def __init__(self, decoder, function):
Thread.__init__(self)
self.decoder = decoder
self.function = function
self.stopped = Event()
[docs] def run(self):
while not self.stopped.is_set():
self.function()
[docs] def stop(self):
self.stopped.set()
# Simple Thread Pool implementation based on http://code.activestate.com/recipes/577187-python-thread-pool/
# WorkerQueue class
[docs]class WorkerQueue(Thread):
"""Thread executing tasks from a given tasks queue"""
def __init__(self, tasks):
Thread.__init__(self)
self.tasks = tasks
self.daemon = True
self.start()
[docs] def run(self):
while True:
func, args, kargs = self.tasks.get()
try:
func(*args, **kargs)
except Exception as e:
print(e)
self.tasks.task_done()
# ThreadPool class
[docs]class ThreadPool(object):
"""Pool of threads consuming tasks from a queue"""
def __init__(self, num_threads):
self.tasks = Queue(num_threads)
for _ in range(num_threads):
WorkerQueue(self.tasks)
[docs] def add_task(self, func, *args, **kargs):
"""Add a task to the queue"""
self.tasks.put((func, args, kargs))
[docs] def wait_completion(self):
"""Wait for completion of all the tasks in the queue"""
self.tasks.join()