optimizations (#200)

* Use direct file read and direct buffer allocation for small IoBuffer materalization
* Reduce range of materialized data in CompositeBuffer reading
CompressedBuffer header reading often only need a small part and not the whole file
* reduce lock contention in IoBuffer::Materialize
* Reduce parsing of compressed headers
Validate header type at decompression
* faster CreateDirectories - start from leaf going up and recurse back
* optimized BufferHeader::IsValid
* Add ValidateCompressedHeader to use when we don't need the actual compressed data
Validate that we always get compressed data in CidStore::AddChunk
* changelog

1 files changed, 1 insertions, 1 deletions

diff --git a/zenstore/include/zenstore/cidstore.h b/zenstore/include/zenstore/cidstore.h
index e8984a83d..16ca78225 100644
--- a/zenstore/include/zenstore/cidstore.h
+++ b/zenstore/include/zenstore/cidstore.h
@@ -70,7 +70,7 @@ public:
 	};
 
 	void		 Initialize(const CidStoreConfiguration& Config);
-	InsertResult AddChunk(const CompressedBuffer& ChunkData, InsertMode Mode = InsertMode::kMayBeMovedInPlace);
+	InsertResult AddChunk(const IoBuffer& ChunkData, const IoHash& RawHash, InsertMode Mode = InsertMode::kMayBeMovedInPlace);
 	IoBuffer	 FindChunkByCid(const IoHash& DecompressedId);
 	bool		 ContainsChunk(const IoHash& DecompressedId);
 	void		 FilterChunks(HashKeySet& InOutChunks);