CVS commit: src

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sat Oct  2 02:07:42 UTC 2021

Modified Files:
        src/sys/kern: uipc_socket2.c
        src/sys/miscfs/fifofs: fifo_vnops.c
        src/tests/lib/libc/sys: t_poll.c

Log Message:
- fifo_poll(): If the last writer has disappeared, detect this and return
  POLLHUP, per POSIX.
- fifo_close(): Use the new fifo_socantrcvmore(), which is like the
  garden-variety socantrcvmore(), except it specifies POLL_HUP rather
  than POLL_IN (so the correct code for SIGIO is sent).
- sowakeup(): Allow POLL_HUP as a code (notifies poll'ers with POLLHUP).
- Add test cases for correct POLLHUP behavior with FIFOs.

Fixes PR kern/56429.


To generate a diff of this commit:
cvs rdiff -u -r1.139 -r1.140 src/sys/kern/uipc_socket2.c
cvs rdiff -u -r1.86 -r1.87 src/sys/miscfs/fifofs/fifo_vnops.c
cvs rdiff -u -r1.4 -r1.5 src/tests/lib/libc/sys/t_poll.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.