Add ZoneWriting basis

src/ZoneWriting/Writing/Processor/OutputProcessorXChunks.h

@@ -0,0 +1,26 @@
+#pragma once
+#include <memory>
+
+#include "Writing/OutputStreamProcessor.h"
+#include "XChunks/IXChunkOutputProcessor.h"
+
+class OutputProcessorXChunks final : public OutputStreamProcessor
+{
+    class Impl;
+    Impl* m_impl;
+
+public:
+    OutputProcessorXChunks(int numStreams, size_t xChunkSize);
+    OutputProcessorXChunks(int numStreams, size_t xChunkSize, size_t vanillaBufferSize);
+    ~OutputProcessorXChunks() override;
+
+    OutputProcessorXChunks(const OutputProcessorXChunks& other) = delete;
+    OutputProcessorXChunks(OutputProcessorXChunks&& other) noexcept;
+    OutputProcessorXChunks& operator=(const OutputProcessorXChunks& other) = delete;
+    OutputProcessorXChunks& operator=(OutputProcessorXChunks&& other) noexcept;
+
+    void AddChunkProcessor(std::unique_ptr<IXChunkOutputProcessor> chunkProcessor) const;
+
+    void Write(const void* buffer, size_t length) override;
+    int64_t Pos() override;
+};