intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 48 insertions, 0 deletions

diff --git a/library/cpp/archive/yarchive.h b/library/cpp/archive/yarchive.h
new file mode 100644
index 0000000000..8120bcb940
--- /dev/null
+++ b/library/cpp/archive/yarchive.h
@@ -0,0 +1,48 @@
+#pragma once
+
+#include "models_archive_reader.h"
+
+#include <util/generic/fwd.h>
+#include <util/generic/ptr.h>
+
+
+class IInputStream;
+class IOutputStream;
+
+class TBlob;
+
+//noncompressed data will be stored with default alignment DEVTOOLS-4384
+static constexpr size_t ArchiveWriterDefaultDataAlignment = 16;
+
+class TArchiveWriter {
+public:
+    explicit TArchiveWriter(IOutputStream* out, bool compress = true);
+    ~TArchiveWriter();
+
+    void Flush();
+    void Finish();
+    void Add(const TString& key, IInputStream* src);
+    void AddSynonym(const TString& existingKey, const TString& newKey);
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+class TArchiveReader : public IModelsArchiveReader {
+public:
+    explicit TArchiveReader(const TBlob& data);
+    ~TArchiveReader() override;
+
+    size_t Count() const noexcept override;
+    TString KeyByIndex(size_t n) const override;
+    bool Has(TStringBuf key) const override;
+    TAutoPtr<IInputStream> ObjectByKey(TStringBuf key) const override;
+    TBlob ObjectBlobByKey(TStringBuf key) const override;
+    TBlob BlobByKey(TStringBuf key) const override;
+    bool Compressed() const override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};