24 lines
500 B
Python
24 lines
500 B
Python
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# Testing select module
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def test():
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import select
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import os
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cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do date; sleep 3; done'
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p = os.popen(cmd, 'r')
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for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
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print 'timeout =', tout
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rfd, wfd, xfd = select.select([p], [], [], tout)
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print rfd, wfd, xfd
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if (rfd, wfd, xfd) == ([], [], []):
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continue
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if (rfd, wfd, xfd) == ([p], [], []):
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line = p.readline()
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print `line`
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if not line:
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print 'EOF'
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break
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continue
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print 'Heh?'
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test()
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