From e983c83d4eb3524c2a8aea0063d5ae2bf3874f0f Mon Sep 17 00:00:00 2001
From: nick black <dankamongmen@gmail.com>
Date: Mon, 20 Sep 2021 02:13:22 -0300
Subject: [PATCH] [input] mask SIGTHR where defined #2191

---
 src/lib/in.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lib/in.c b/src/lib/in.c
index 6e011b945..d791aee7b 100644
--- a/src/lib/in.c
+++ b/src/lib/in.c
@@ -1882,6 +1882,11 @@ block_on_input(inputctx* ictx, unsigned* rtfd, unsigned* rifd){
   sigfillset(&smask);
   sigdelset(&smask, SIGCONT);
   sigdelset(&smask, SIGWINCH);
+#ifdef SIGTHR
+  // freebsd uses SIGTHR for thread cancellation; need this to ensure wakeup
+  // on exit (in cancel_and_join()).
+  sigdelset(&smask, SIGTHR);
+#endif
   if(pfdcount == 0){
     loginfo("output queues full; blocking on signals\n");
     int signum;