2 files changed, 55 insertions, 41 deletions
diff --git a/zenstore/gc.cpp b/zenstore/gc.cpp
index c25ea344c..612cceed9 100644
--- a/zenstore/gc.cpp
+++ b/zenstore/gc.cpp
@@ -80,4 +80,16 @@ CasGc::OnNewCidReferences(std::span<IoHash> Hashes)
 	ZEN_UNUSED(Hashes);
 }
 
+void
+CasGc::OnCommittedCidReferences(std::span<IoHash> Hashes)
+{
+	ZEN_UNUSED(Hashes);
+}
+
+void
+CasGc::OnDroppedCidReferences(std::span<IoHash> Hashes)
+{
+	ZEN_UNUSED(Hashes);
+}
+
 }  // namespace zen
diff --git a/zenstore/include/zenstore/gc.h b/zenstore/include/zenstore/gc.h
index dda33c9eb..baf13aab1 100644
--- a/zenstore/include/zenstore/gc.h
+++ b/zenstore/include/zenstore/gc.h
@@ -9,61 +9,63 @@
 
 namespace zen {
 
-class CasStore;
-class CasGc;
-struct IoHash;
+	class CasStore;
+	class CasGc;
+	struct IoHash;
 
-/** Garbage Collection context object
- */
+	/** Garbage Collection context object
+	 */
 
-class GcContext
-{
-public:
-	GcContext();
-	~GcContext();
+	class GcContext
+	{
+	public:
+		GcContext();
+		~GcContext();
 
-	void ContributeCids(std::span<const IoHash> Cid);
-	void ContributeCas(std::span<const IoHash> Hash);
+		void ContributeCids(std::span<const IoHash> Cid);
+		void ContributeCas(std::span<const IoHash> Hash);
 
-private:
-	struct GcState;
+	private:
+		struct GcState;
 
-	std::unique_ptr<GcState> m_State;
-};
+		std::unique_ptr<GcState> m_State;
+	};
 
-class GcContributor
-{
-public:
-	GcContributor(CasGc& Gc);
-	~GcContributor();
+	class GcContributor
+	{
+	public:
+		GcContributor(CasGc& Gc);
+		~GcContributor();
 
-	virtual void GarbageCollect(GcContext& GcCtx) = 0;
+		virtual void GarbageCollect(GcContext& GcCtx) = 0;
 
-protected:
-	CasGc& m_Gc;
-};
+	protected:
+		CasGc& m_Gc;
+	};
 
-/** GC
- */
+	/** GC orchestrator
+	 */
 
-class CasGc
-{
-public:
-	CasGc(CasStore& Store);
-	~CasGc();
+	class CasGc
+	{
+	public:
+		CasGc(CasStore& Store);
+		~CasGc();
 
-	void AddGcContributor(GcContributor* Contributor);
-	void RemoveGcContributor(GcContributor* Contributor);
+		void AddGcContributor(GcContributor* Contributor);
+		void RemoveGcContributor(GcContributor* Contributor);
 
-	void CollectGarbage();
+		void CollectGarbage();
 
-	void OnNewCidReferences(std::span<IoHash> Hashes);
+		void OnNewCidReferences(std::span<IoHash> Hashes);
+		void OnCommittedCidReferences(std::span<IoHash> Hashes);
+		void OnDroppedCidReferences(std::span<IoHash> Hashes);
 
-private:
-	CasStore&				   m_CasStore;
-	RwLock					   m_Lock;
-	std::vector<GcContributor*> m_GcContribs;
-};
+	private:
+		CasStore& m_CasStore;
+		RwLock					   m_Lock;
+		std::vector<GcContributor*> m_GcContribs;
+	};
 
 }  // namespace zen