handle POLLHUP from fifos

when process that writes to fifo exits, the fifo is closed.
We handle this by just re-opening it.

1 files changed, 14 insertions, 3 deletions

diff --git a/sircbot.c b/sircbot.c
index 30f870f..67dc5a9 100644
--- a/sircbot.c
+++ b/sircbot.c
@@ -348,9 +348,20 @@ static int irc_loop(struct irc_session *sess, struct sircbot_channel *chan,
 			    send_fifo_queue(sess, &chan[i-1], now) < 0)
 				goto ret_err;
 			
-			if ((fds[i].revents & POLLHUP) && i == 0)
-				/* server hang up on us */
-				return 0;
+			if (fds[i].revents & POLLHUP) {
+				if (i == 0)
+					/* server hang up on us */
+					return 0;
+
+				/* one of the fifos closed due to
+				   writer process exit. We just
+				   reopen it assuming we are still
+				   joined the channel */
+				close_fifo(&chan[i-1],
+					   chan[i-1].last_closetime);
+				init_fifo(&chan[i-1]);
+				continue;
+			}
 
 			if (fds[i].revents & POLLERR)
 				goto ret_err;