From 0c8ff1106651c5bc2ef024364404f08163cdab43 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Sat, 19 Oct 2019 01:34:12 -0400
Subject: screen_main(): Poll input

---
diff --git a/src/screen.c b/src/screen.c
index 7259fab..c72b9de 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -23,6 +23,8 @@
 
 #include <assert.h>
 #include <curses.h>
+#include <errno.h>
+#include <poll.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -69,7 +71,10 @@ screen_new(void)
 bool
 screen_main(struct screen *screen, struct speech *speech)
 {
-	bool play;
+	struct pollfd fds[] = {
+		{ .fd = STDIN_FILENO, .events = POLLIN|POLLERR, .revents = 0 },
+	};
+	bool          play;
 
 	assert(screen);
 	assert(speech);
@@ -107,7 +112,10 @@ screen_main(struct screen *screen, struct speech *speech)
 			speech_play_time(speech);
 			play = false;
 		} else {
-			sleep(1);
+			while (poll(fds, 1, 1000) < 0 && (errno == EINTR ||
+						errno == EAGAIN)) {
+				continue;
+			}
 		}
 	}
 
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