Date: Tue, 7 Jul 2009 09:43:44 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/fs/fifofs fifo_vnops.c src/sys/kern sys_pipe.c uipc_socket.c src/sys/sys socketvar.h Message-ID: <200907070944.n679ib16025725@repoman.freebsd.org>
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kib 2009-07-07 09:43:44 UTC
FreeBSD src repository
Modified files:
sys/fs/fifofs fifo_vnops.c
sys/kern sys_pipe.c uipc_socket.c
sys/sys socketvar.h
Log:
SVN rev 195423 on 2009-07-07 09:43:44Z by kib
Fix poll(2) and select(2) for named pipes to return "ready for read"
when all writers, observed by reader, exited. Use writer generation
counter for fifo, and store the snapshot of the fifo generation in the
f_seqcount field of struct file, that is otherwise unused for fifos.
Set FreeBSD-undocumented POLLINIGNEOF flag only when file f_seqcount is
equal to fifo' fi_wgen, and revert r89376.
Fix POLLINIGNEOF for sockets and pipes, and return POLLHUP for them.
Note that the patch does not fix not returning POLLHUP for fifos.
PR: kern/94772
Submitted by: bde (original version)
Reviewed by: rwatson, jilles
Approved by: re (kensmith)
MFC after: 6 weeks (might be)
Revision Changes Path
1.152 +14 -20 src/sys/fs/fifofs/fifo_vnops.c
1.205 +9 -6 src/sys/kern/sys_pipe.c
1.337 +10 -9 src/sys/kern/uipc_socket.c
1.171 +3 -2 src/sys/sys/socketvar.h
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