llvm-6502/include/llvm/Support/Compression.h
Chandler Carruth 1b279144ec [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225974 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 11:23:27 +00:00

60 lines
1.5 KiB
C++

//===-- llvm/Support/Compression.h ---Compression----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains basic functions for compression/uncompression.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_COMPRESSION_H
#define LLVM_SUPPORT_COMPRESSION_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataTypes.h"
#include <memory>
namespace llvm {
class StringRef;
namespace zlib {
enum CompressionLevel {
NoCompression,
DefaultCompression,
BestSpeedCompression,
BestSizeCompression
};
enum Status {
StatusOK,
StatusUnsupported, // zlib is unavailable
StatusOutOfMemory, // there was not enough memory
StatusBufferTooShort, // there was not enough room in the output buffer
StatusInvalidArg, // invalid input parameter
StatusInvalidData // data was corrupted or incomplete
};
bool isAvailable();
Status compress(StringRef InputBuffer, SmallVectorImpl<char> &CompressedBuffer,
CompressionLevel Level = DefaultCompression);
Status uncompress(StringRef InputBuffer,
SmallVectorImpl<char> &UncompressedBuffer,
size_t UncompressedSize);
uint32_t crc32(StringRef Buffer);
} // End of namespace zlib
} // End of namespace llvm
#endif