From c7dfbec96ec54fc6b99c03a6e4752bf7962e1f07 Mon Sep 17 00:00:00 2001
From: Bruno de Oliveira Abinader <bruno@mapbox.com>
Date: Tue, 25 Aug 2015 11:18:27 -0700
Subject: [PATCH] Make Bucket::uploaded an atomic bool

This class is called from multiple threads, so we better make this
synchronization flag atomic.
---
 src/mbgl/renderer/bucket.hpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mbgl/renderer/bucket.hpp b/src/mbgl/renderer/bucket.hpp
index 4bdb766a7..6185a5c9b 100644
--- a/src/mbgl/renderer/bucket.hpp
+++ b/src/mbgl/renderer/bucket.hpp
@@ -5,6 +5,8 @@
 #include <mbgl/util/noncopyable.hpp>
 #include <mbgl/util/mat4.hpp>
 
+#include <atomic>
+
 #define BUFFER_OFFSET(i) ((char*)nullptr + (i))
 
 namespace mbgl {
@@ -15,6 +17,8 @@ class TileID;
 
 class Bucket : private util::noncopyable {
 public:
+    Bucket() : uploaded(false) {}
+    
     // As long as this bucket has a Prepare render pass, this function is getting called. Typically,
     // this only happens once when the bucket is being rendered for the first time.
     virtual void upload() = 0;
@@ -33,7 +37,7 @@ public:
     virtual void swapRenderData() {}
 
 protected:
-    bool uploaded = false;
+    std::atomic<bool> uploaded;
 
 };