From d139217ed53516bfcb71de171bf209706f5c842a Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sun, 11 Dec 2016 14:05:38 +0100
Subject: Extract term event polling

---
 life.cc          |  9 ++-------
 src/util/term.cc | 12 ++++++++++++
 2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/life.cc b/life.cc
index 6f57c20..08a205a 100644
--- a/life.cc
+++ b/life.cc
@@ -42,14 +42,9 @@ int main(int, char*[]) {
 	draw(worldOffsetX, worldOffsetY, world);
 
 	while ( true ) {
-		struct tb_event ev;
-		int t = tb_poll_event(&ev);
+		struct tb_event ev{ guard.poll() };
 
-		if ( t == -1 ) {
-			return -1;
-		}
-
-		switch ( t ) {
+		switch ( ev.type ) {
 			case TB_EVENT_KEY:
 				switch ( ev.key ) {
 					case TB_KEY_ESC:
diff --git a/src/util/term.cc b/src/util/term.cc
index 9e4c101..704f872 100644
--- a/src/util/term.cc
+++ b/src/util/term.cc
@@ -1,5 +1,7 @@
 #include "term.h"
 
+#include <system_error>
+
 #include <termbox.h>
 
 namespace util {
@@ -27,4 +29,14 @@ TermGuard::~TermGuard() {
 	tb_shutdown();
 }
 
+tb_event TermGuard::poll() const {
+	struct tb_event event;
+
+	if ( tb_poll_event(&event) == -1 ) {
+		throw std::system_error();
+	} else {
+		return event;
+	}
+}
+
 }
-- 
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