intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 52 insertions, 0 deletions

diff --git a/library/cpp/streams/brotli/brotli.h b/library/cpp/streams/brotli/brotli.h
new file mode 100644
index 00000000000..b3af869e29c
--- /dev/null
+++ b/library/cpp/streams/brotli/brotli.h
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <util/generic/ptr.h>
+#include <util/stream/input.h>
+#include <util/stream/output.h>
+
+/**
+ * @addtogroup Streams_Archs
+ * @{
+ */
+
+class TBrotliCompress: public IOutputStream {
+public:
+    static constexpr int BEST_QUALITY = 11;
+
+    /**
+      @param slave stream to write compressed data to
+      @param quality the higher the quality, the slower and better the compression. Range is 0 to 11.
+    */
+    explicit TBrotliCompress(IOutputStream* slave, int quality = BEST_QUALITY);
+    ~TBrotliCompress() override;
+
+private:
+    void DoWrite(const void* buffer, size_t size) override;
+    void DoFlush() override;
+    void DoFinish() override;
+
+public:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+class TBrotliDecompress: public IInputStream {
+public:
+    /**
+      @param slave stream to read compressed data from
+      @param bufferSize approximate size of buffer compressed data is read in
+    */
+    explicit TBrotliDecompress(IInputStream* slave, size_t bufferSize = 8 * 1024);
+    ~TBrotliDecompress() override;
+
+private:
+    size_t DoRead(void* buffer, size_t size) override;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};
+
+/** @} */