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Re: select() hanging after terminal killed
Am 29.04.2010 12:53, schrieb Thomas Wolff:
[on closed terminal]
> On Linux, select() indicates an exception and EIO.
> On SunOS, select() indicates both an exception and input (weird),
Not weird, you appear to be misunderstanding select().
An IEEE Std 1003.1 compliant select():
- only states that a subsequent read() will *not block*
this includes EOF and error, as they make read() return without blocking)
- makes *no statements about success*
> On Cygwin, the following is observed:
> * EOF is not signalled on read(); rather EIO is indicated right away.
> (Maybe not too bad, an application can handle that as well.)
> * select() with timeout hangs.
>
> Especially the latter can hardly be handled by an application.
Pointers for workarounds: alarm(), signal().
--
Matthias Andree
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