From be9c566622959d2435caaab0004e498a79d683ca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Wed, 15 Jul 2020 16:47:01 +0200
Subject: [PATCH] input: comments

---
 input.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/input.c b/input.c
index e9978fb2..ff4f9edf 100644
--- a/input.c
+++ b/input.c
@@ -184,7 +184,8 @@ execute_binding(struct seat *seat, struct terminal *term,
             }
         }
 
-        /* Make sure write-end is closed on exec() */
+        /* Make sure write-end is closed on exec() - or the spawned
+         * program may not terminate*/
         {
             int flags = fcntl(pipe_fd[1], F_GETFD);
             if (flags < 0 ||
@@ -211,6 +212,7 @@ execute_binding(struct seat *seat, struct terminal *term,
             .left = len,
         };
 
+        /* Asynchronously write the output to the pipe */
         if (!fdm_add(term->fdm, pipe_fd[1], EPOLLOUT, &fdm_write_pipe, ctx))
             goto pipe_err;