Unblocking blocked I/O
Tom Tromey
tromey@redhat.com
Wed Sep 26 09:07:00 GMT 2001
>>>>> "Bryce" == Bryce McKinlay <bryce@waitaki.otago.ac.nz> writes:
Bryce> * java/io/natFileDescriptorPosix.cc (write (jint)): Check for thread
Bryce> interrupted status flag only if ::write returned an error.
My understanding is that write(2) can return a short (not -1) count
when interrupted. From the glibc manual:
`EINTR'
The `write' operation was interrupted by a signal while it was
blocked waiting for completion. A signal will not necessary
cause `write' to return `EINTR'; it may instead result in a
successful `write' which writes fewer bytes than requested.
This is why the code used to check for the interrupt unconditionally.
I think this part of the change should be reverted.
Thanks,
Tom
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