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ThreadSafe.py
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ThreadSafe.py
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#! /usr/bin/env python3
"""
# ThreadSafe.py : stress thread safeness
# Copyright (C) 2010 Ludovic Rousseau
"""
# 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 3 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, see <http:https://www.gnu.org/licenses/>.
from smartcard.scard import (SCardEstablishContext, SCardReleaseContext,
SCardGetErrorMessage, SCARD_SCOPE_USER, SCARD_S_SUCCESS)
from smartcard.pcsc.PCSCExceptions import *
import threading
MAX_THREADS = 100
MAX_ITER = 10
def stress(*args):
"""
stress method
"""
thread = args[0]
for j in range(0, MAX_ITER):
print(thread, end=' ')
hresult, hcontext = SCardEstablishContext(SCARD_SCOPE_USER)
if hresult != SCARD_S_SUCCESS:
raise EstablishContextException(hresult)
hresult = SCardReleaseContext(hcontext)
# print("SCardReleaseContext()", SCardGetErrorMessage(hresult))
if hresult != SCARD_S_SUCCESS:
raise ReleaseContextException(hresult)
def main():
"""
main
"""
threads = list()
for i in range(0, MAX_THREADS):
thread = threading.Thread(target=stress, args=(i,))
threads.append(thread)
print("start thread", i)
thread.start()
for thread in threads:
thread.join()
if __name__ == "__main__":
main()