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Re: select() not interrupted by signals


On 11.01.2013 09:52, Corinna Vinschen wrote:
On Jan 11 09:41, Thomas Wolff wrote:
I had previously reported "select() hanging after terminal killed"
(http://cygwin.com/ml/cygwin/2011-05/msg00418.html).
It turns out that select() does not get interrupted by a SIGWINCH
signal either (with likely the same cause).
This raises problems with interactive programs that want to react to
window size changes (like text editors).

See attached updated test case; run the program, while select() is
waiting (before 5 second timeout each), change window size and see
no interrupt.
On other systems, select() is interrupted (test case: from mintty,
remote login to SunOS; also showing the terminal is not involved in
the problem).

This bug did not exist in cygwin 1.5; I see some Changelog entries
from 2011-12-13 or 2012-01-22 which might be related.
Just for clarity, did you test with the latest snapshot?
No, with the source package of the latest release.
And I can't test with the snapshot as it doesn't compile here (after fresh download and unpack):


In file included from /usr/src/cygwin-snapshot-20130107-1/newlib/libc/include/sys/types.h:61:0,
from ../../.././winsup/cygwin/winsup.h:29,
from ../../.././winsup/cygwin/lib/_cygwin_crt0_common.cc:11:
/usr/src/cygwin-snapshot-20130107-1/newlib/libc/include/sys/_types.h:63:20: schwerwiegender Fehler: stddef.h: No such file or directory
Kompilierung beendet.


------
Thomas

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