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Re: ^C not getting to sub, sub, sub, sub processes
On Fri, Sep 19, 2003 at 11:23:49PM -0400, Rolf Campbell wrote:
>Christopher Faylor wrote:
>>>I have a reproducable (at least on my machine) of some ^C handling issues.
>>>
>>>#!/bin/python
>>>import sys, os, select
>>>
>>>if(int(sys.argv[1]) > 0):
>>> os.system(sys.argv[0] + " %d" % (int(sys.argv[1])-1))
>>>else:
>>> select.select([], [], [], 10)
>>>
>>>Try running this as "./deep.py 0", and then, when it's waiting, hit ^C,
>>>it will terminate fine. Now try it as "./deep.py 1", and then hit ^C.
>>>Nothing happens. I see this when I try to cancel my build, but ^C
>>>doesn't work when the process tree is too deep.
>>
>>
>>Interesting. This is an *ancient* bug. I think it even predates my
>>involvment in cygwin. It was a bug in the system() call. It should be
>>fixed in the latest snapshot, available now.
>>
>>Thanks for the test case.
>
>No problem, thank you for the quick fix (works great now). BTW, I have
>some machines that are still running 1.3.17, and I could not reproduce
>this ^C issue on them. I don't really care, but I thought I would
>mention it.
Yeah, I'll bet it worked perfectly on B20, too.
cgf
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