49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
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//===-- llvm/Support/Compression.h ---Compression----------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains basic functions for compression/uncompression.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_COMPRESSION_H
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#define LLVM_SUPPORT_COMPRESSION_H
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#include "llvm/Support/DataTypes.h"
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namespace llvm {
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template <typename T> class SmallVectorImpl;
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class Error;
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class StringRef;
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namespace zlib {
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static constexpr int NoCompression = 0;
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static constexpr int BestSpeedCompression = 1;
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static constexpr int DefaultCompression = 6;
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static constexpr int BestSizeCompression = 9;
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bool isAvailable();
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Error compress(StringRef InputBuffer, SmallVectorImpl<char> &CompressedBuffer,
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int Level = DefaultCompression);
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Error uncompress(StringRef InputBuffer, char *UncompressedBuffer,
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size_t &UncompressedSize);
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Error uncompress(StringRef InputBuffer,
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SmallVectorImpl<char> &UncompressedBuffer,
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size_t UncompressedSize);
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uint32_t crc32(StringRef Buffer);
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} // End of namespace zlib
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} // End of namespace llvm
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#endif
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