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| 1 | from multiprocessing.pool import Pool | |
| 2 | from multiprocessing import Event | |
| 3 | ||
| 4 | import time | |
| 5 | ||
| 6 | EV = [Event() for e in xrange(11)] | |
| 7 | ||
| 8 | def echo(i): | |
| 9 | EV[i].wait() | |
| 10 | time.sleep(0.001) | |
| 11 | EV[i+1].set() | |
| 12 | return i | |
| 13 | ||
| 14 | def reset(): | |
| 15 | for e in EV: e.clear() | |
| 16 | EV[0].set() | |
| 17 | ||
| 18 | def main(): | |
| 19 | p = Pool(10) | |
| 20 | ||
| 21 | reset() | |
| 22 | run1 = [a for a in p.imap_unordered(echo, xrange(10))] | |
| 23 | ||
| 24 | reset() | |
| 25 | run2 = [a for a in p.imap_unordered(echo, xrange(10))] | |
| 26 | ||
| 27 | reset() | |
| 28 | run3 = [a for a in p.imap_unordered(echo, xrange(10))] | |
| 29 | ||
| 30 | reset() | |
| 31 | run4 = [a for a in p.imap_unordered(echo, xrange(10))] | |
| 32 | ||
| 33 | print( run1 == run2 == run3 == run4 ) | |
| 34 | ||
| 35 | if __name__ == '__main__': | |
| 36 | main() |
