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Fix ses.channel_signal_pending race

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This commit is contained in:
Matt Johnston 2015-11-27 21:26:43 +08:00
parent 33b2fbb5ef
commit ee353847be
2 changed files with 3 additions and 2 deletions
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2
common-channel.c
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@ -255,8 +255,6 @@ void channelio(fd_set *readfds, fd_set *writefds) {
}
}
ses.channel_signal_pending = 0;
#ifdef USING_LISTENERS
handle_listeners(readfds);
#endif

3
common-session.c
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@ -162,6 +162,7 @@ void session_loop(void(*loophandler)()) {
/* We get woken up when signal handlers write to this pipe.
SIGCHLD in svr-chansession is the only one currently. */
FD_SET(ses.signal_pipe[0], &readfd);
ses.channel_signal_pending = 0;
/* set up for channels which can be read/written */
setchannelfds(&readfd, &writefd, writequeue_has_space);
@ -211,7 +212,9 @@ void session_loop(void(*loophandler)()) {
wake up the select() above. */
if (FD_ISSET(ses.signal_pipe[0], &readfd)) {
char x;
TRACE(("signal pipe set"))
while (read(ses.signal_pipe[0], &x, 1) > 0) {}
ses.channel_signal_pending = 1;
}
/* check for auth timeout, rekeying required etc */