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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "chunkformat.h"
namespace search {
class ChunkFormatV1 : public ChunkFormat
{
public:
enum {VERSION=0};
ChunkFormatV1(vespalib::nbostream & is, uint32_t expectedCrc);
ChunkFormatV1(size_t maxSize);
private:
bool includeSerializedSize() const override { return false; }
uint8_t getVersion() const override { return VERSION; }
size_t getHeaderSize() const override { return 0; }
uint32_t computeCrc(const void * buf, size_t sz) const override;
void writeHeader(vespalib::DataBuffer & buf) const override {
(void) buf;
}
};
class ChunkFormatV2 : public ChunkFormat
{
public:
enum {VERSION=1, MAGIC=0x5ba32de7};
ChunkFormatV2(vespalib::nbostream & is, uint32_t expectedCrc);
ChunkFormatV2(size_t maxSize);
private:
bool includeSerializedSize() const override { return true; }
size_t getHeaderSize() const override {
// MAGIC
return 4;
}
uint8_t getVersion() const override { return VERSION; }
uint32_t computeCrc(const void * buf, size_t sz) const override;
void writeHeader(vespalib::DataBuffer & buf) const override {
buf.writeInt32(MAGIC);
}
void verifyMagic(vespalib::nbostream & is) const;
};
} // namespace search
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