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Code Issues Releases Activity

Slide socket buffer lock earlier in sopoll() to cover the call into

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selrecord(), setting up select and flagging the socker buffers as SB_SEL
and setting up select under the lock.
This commit is contained in:
Robert Watson 2004-06-24 00:54:26 +00:00
parent 80f0e4c265
commit adb4cf0fbc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=131005
1 changed files with 2 additions and 2 deletions
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4
sys/kern/uipc_socket.c
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@ -1884,15 +1884,15 @@ sopoll(struct socket *so, int events, struct ucred *active_cred,
if (events &
(POLLIN | POLLINIGNEOF | POLLPRI | POLLRDNORM |
POLLRDBAND)) {
selrecord(td, &so->so_rcv.sb_sel);
SOCKBUF_LOCK(&so->so_rcv);
selrecord(td, &so->so_rcv.sb_sel);
so->so_rcv.sb_flags |= SB_SEL;
SOCKBUF_UNLOCK(&so->so_rcv);
}
if (events & (POLLOUT | POLLWRNORM)) {
selrecord(td, &so->so_snd.sb_sel);
SOCKBUF_LOCK(&so->so_snd);
selrecord(td, &so->so_snd.sb_sel);
so->so_snd.sb_flags |= SB_SEL;
SOCKBUF_UNLOCK(&so->so_snd);
}