From 622813d02f9186e3255aa4745f3bdf133f63ca91 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Sun, 30 Apr 2023 09:10:32 +0200
Subject: Exit on error (avoid 100% CPU loop)

---
 x1k2-midi-osc.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/x1k2-midi-osc.c b/x1k2-midi-osc.c
index 3a4f476..3ad763d 100644
--- a/x1k2-midi-osc.c
+++ b/x1k2-midi-osc.c
@@ -279,6 +279,16 @@ static int flip_position(int i)
 }
 
 
+static int hup_err(struct pollfd *pfds, int nfds)
+{
+	int i;
+	for ( i=0; i<nfds; i++ ) {
+		if ( pfds[i].revents & (POLLERR | POLLHUP) ) return 1;
+	}
+	return 0;
+}
+
+
 int main(int argc, char *argv[])
 {
 	int c, r, i;
@@ -371,6 +381,11 @@ int main(int argc, char *argv[])
 
 			unsigned short revents;
 
+			if ( hup_err(pfds, 1+nfds) ) {
+				fprintf(stderr, "Error!\n");
+				break;
+			}
+
 			if ( pfds[0].revents & POLLIN ) {
 				lo_server_recv_noblock(osc_server, 0);
 			}
-- 
cgit v1.2.3