Added HashMemory() function accepting CompositeBuffer argument

2 files changed, 17 insertions, 0 deletions

diff --git a/zencore/include/zencore/iohash.h b/zencore/include/zencore/iohash.h
index 14049e2b2..853076129 100644
--- a/zencore/include/zencore/iohash.h
+++ b/zencore/include/zencore/iohash.h
@@ -1,4 +1,5 @@
 // Copyright Epic Games, Inc. All Rights Reserved.
+// Copyright Epic Games, Inc. All Rights Reserved.
 
 #pragma once
 
@@ -12,6 +13,7 @@
 namespace zen {
 
 class StringBuilderBase;
+class CompositeBuffer;
 
 /**
  * Hash used for content addressable storage
@@ -41,6 +43,7 @@ struct IoHash
 
 	static IoHash	   HashMemory(const void* data, size_t byteCount);
 	static IoHash	   HashMemory(MemoryView Data) { return HashMemory(Data.GetData(), Data.GetSize()); }
+	static IoHash	   HashMemory(const CompositeBuffer& Buffer);
 	static IoHash	   FromHexString(const char* string);
 	static IoHash	   FromHexString(const std::string_view string);
 	const char*		   ToHexString(char* outString /* 40 characters + NUL terminator */) const;
diff --git a/zencore/iohash.cpp b/zencore/iohash.cpp
index afe2e54ba..9b095ccdb 100644
--- a/zencore/iohash.cpp
+++ b/zencore/iohash.cpp
@@ -3,6 +3,7 @@
 #include <zencore/iohash.h>
 
 #include <zencore/blake3.h>
+#include <zencore/compositebuffer.h>
 #include <zencore/string.h>
 
 #include <doctest/doctest.h>
@@ -24,6 +25,19 @@ IoHash::HashMemory(const void* data, size_t byteCount)
 }
 
 IoHash
+IoHash::HashMemory(const CompositeBuffer& Buffer)
+{
+	IoHashStream Hasher;
+
+	for (const SharedBuffer& Segment : Buffer.GetSegments())
+	{
+		Hasher.Append(Segment.GetData(), Segment.GetSize());
+	}
+
+	return Hasher.GetHash();
+}
+
+IoHash
 IoHash::FromHexString(const char* string)
 {
 	return FromHexString({string, sizeof(IoHash::Hash) * 2});