054a89dd9e
+ A cPlayer, once created, has a strong pointer to the cClientHandle. The player ticks the clienthandle. If he finds the handle destroyed, he destroys himself in turn. Nothing else can kill the player. * The client handle has a pointer to the player. Once a player is created, the client handle never outlasts the player, nor does it manage the player's lifetime. The pointer is always safe to use after FinishAuthenticate, which is also the point where cProtocol is put into the Game state that allows player manipulation. + Entities are once again never lost by constructing a chunk when they try to move into one that doesn't exist. * Fixed a forgotten Super invocation in cPlayer::OnRemoveFromWorld. * Fix SaveToDisk usage in destructor by only saving things cPlayer owns, instead of accessing cWorld.
84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
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// StringCompression.h
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// Interfaces to the wrapping functions for compression and decompression
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#pragma once
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struct libdeflate_compressor;
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struct libdeflate_decompressor;
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namespace Compression
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{
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/** Contains the result of a compression or extraction operation. */
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struct Result
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{
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using Static = std::array<std::byte, 128 KiB>;
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using Dynamic = std::unique_ptr<std::byte[]>;
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static constexpr size_t StaticCapacity = sizeof(Compression::Result::Static) / sizeof(Compression::Result::Static::value_type);
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/** Returns a view (of type char) of the internal store. */
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std::string_view GetStringView() const;
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/** Returns a view (of type std::byte) of the internal store. */
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ContiguousByteBufferView GetView() const;
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/** A store allocated on either the stack or heap. */
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std::variant<Static, Dynamic> Storage;
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/** The length of valid data in the store. */
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size_t Size;
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};
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/** Contains routines for data compression. */
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class Compressor
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{
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public:
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/** Creates a new compressor instance with a compression factor [0-12]. */
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Compressor(int CompressionFactor = 6);
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~Compressor();
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Result CompressGZip(ContiguousByteBufferView Input);
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Result CompressZLib(ContiguousByteBufferView Input);
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Result CompressZLib(const void * Input, size_t Size);
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private:
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template <auto Algorithm>
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Result Compress(const void * Input, size_t Size);
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libdeflate_compressor * m_Handle;
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};
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/** Contains routines for data extraction. */
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class Extractor
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{
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public:
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/** Creates a new extractor instance. */
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Extractor();
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~Extractor();
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Result ExtractGZip(ContiguousByteBufferView Input);
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Result ExtractZLib(ContiguousByteBufferView Input);
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Result ExtractZLib(ContiguousByteBufferView Input, size_t UncompressedSize);
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private:
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template <auto Algorithm> Result Extract(ContiguousByteBufferView Input);
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template <auto Algorithm> Result Extract(ContiguousByteBufferView Input, size_t UncompressedSize);
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libdeflate_decompressor * m_Handle;
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};
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}
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