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v0.8.1
v0.8.1
https://github.com/python/cpython
Tip revision: 3556b2db57ab3b17b3d4c6b28cdc604a3e0168e8 authored by Anthony Baxter on 27 April 2006, 02:13:13 UTC
2.5a2
2.5a2
Tip revision: 3556b2d
test_dummy_threading.py
# Very rudimentary test of threading module
# Create a bunch of threads, let each do some work, wait until all are done
from test.test_support import verbose
import random
import dummy_threading as _threading
import time
class TestThread(_threading.Thread):
def run(self):
global running
# Uncomment if testing another module, such as the real 'threading'
# module.
#delay = random.random() * 2
delay = 0
if verbose:
print 'task', self.getName(), 'will run for', delay, 'sec'
sema.acquire()
mutex.acquire()
running = running + 1
if verbose:
print running, 'tasks are running'
mutex.release()
time.sleep(delay)
if verbose:
print 'task', self.getName(), 'done'
mutex.acquire()
running = running - 1
if verbose:
print self.getName(), 'is finished.', running, 'tasks are running'
mutex.release()
sema.release()
def starttasks():
for i in range(numtasks):
t = TestThread(name="<thread %d>"%i)
threads.append(t)
t.start()
def test_main():
# This takes about n/3 seconds to run (about n/3 clumps of tasks, times
# about 1 second per clump).
global numtasks
numtasks = 10
# no more than 3 of the 10 can run at once
global sema
sema = _threading.BoundedSemaphore(value=3)
global mutex
mutex = _threading.RLock()
global running
running = 0
global threads
threads = []
starttasks()
if verbose:
print 'waiting for all tasks to complete'
for t in threads:
t.join()
if verbose:
print 'all tasks done'
if __name__ == '__main__':
test_main()