From e8b5be519c050e96cfd3c8d9da93d9cc2d6f88b5 Mon Sep 17 00:00:00 2001
From: Oliver Jowett <oliver.jowett@flightaware.com>
Date: Tue, 4 Aug 2020 20:40:18 +0800
Subject: [PATCH] Make Modes.exit an atomic_int to make cross-thread use a
 little simpler.

---
 dump1090.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dump1090.h b/dump1090.h
index 96d1b1b..f45bb34 100644
--- a/dump1090.h
+++ b/dump1090.h
@@ -65,6 +65,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <stdbool.h>
+#include <stdatomic.h>
 #include <pthread.h>
 #include <stdint.h>
 #include <errno.h>
@@ -306,7 +307,7 @@ struct _Modes {                             // Internal state
     double          sample_rate;                          // actual sample rate in use (in hz)
 
     uint16_t       *log10lut;        // Magnitude -> log10 lookup table
-    int             exit;            // Exit from the main loop when true (2 = unclean exit)
+    atomic_int      exit;            // Exit from the main loop when true (2 = unclean exit)
 
     // Sample conversion
     int            dc_filter;        // should we apply a DC filter?