Metal: use atomic for buffer tracking

2025-09-19 13:41:37 -07:00
2 changed files with 2 additions and 2 deletions
--- a/filament/backend/src/metal/MetalBuffer.h
+++ b/filament/backend/src/metal/MetalBuffer.h
@@ -153,7 +153,7 @@ private:
    Type mType = Type::NONE;

    static PlatformMetal* platform;
-    static std::array<uint64_t, TypeCount> aliveBuffers;
+    static std::array<std::atomic<uint64_t>, TypeCount> aliveBuffers;
 };

 class MetalBuffer {
--- a/filament/backend/src/metal/MetalBuffer.mm
+++ b/filament/backend/src/metal/MetalBuffer.mm
@@ -24,7 +24,7 @@
 namespace filament {
 namespace backend {

-std::array<uint64_t, TrackedMetalBuffer::TypeCount> TrackedMetalBuffer::aliveBuffers = { 0 };
+std::array<std::atomic<uint64_t>, TrackedMetalBuffer::TypeCount> TrackedMetalBuffer::aliveBuffers = { 0 };
 PlatformMetal* TrackedMetalBuffer::platform = nullptr;
 PlatformMetal* ScopedAllocationTimer::platform = nullptr;