| 1 | n/a | import signal, subprocess, sys, time |
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| 2 | n/a | # On Linux this causes os.waitpid to fail with OSError as the OS has already |
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| 3 | n/a | # reaped our child process. The wait() passing the OSError on to the caller |
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| 4 | n/a | # and causing us to exit with an error is what we are testing against. |
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| 5 | n/a | signal.signal(signal.SIGCHLD, signal.SIG_IGN) |
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| 6 | n/a | subprocess.Popen([sys.executable, '-c', 'print("albatross")']).wait() |
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| 7 | n/a | # Also ensure poll() handles an errno.ECHILD appropriately. |
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| 8 | n/a | p = subprocess.Popen([sys.executable, '-c', 'print("albatross")']) |
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| 9 | n/a | num_polls = 0 |
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| 10 | n/a | while p.poll() is None: |
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| 11 | n/a | # Waiting for the process to finish. |
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| 12 | n/a | time.sleep(0.01) # Avoid being a CPU busy loop. |
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| 13 | n/a | num_polls += 1 |
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| 14 | n/a | if num_polls > 3000: |
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| 15 | n/a | raise RuntimeError('poll should have returned 0 within 30 seconds') |
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