69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2016-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under both the BSD-style license (found in the
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
|
* in the COPYING file in the root directory of this source tree).
|
|
*/
|
|
#pragma once
|
|
|
|
#define ZSTD_STATIC_LINKING_ONLY
|
|
#include "zstd.h"
|
|
#undef ZSTD_STATIC_LINKING_ONLY
|
|
|
|
#include <cstdint>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace pzstd {
|
|
|
|
struct Options {
|
|
enum class WriteMode { Regular, Auto, Sparse };
|
|
|
|
unsigned numThreads;
|
|
unsigned maxWindowLog;
|
|
unsigned compressionLevel;
|
|
bool decompress;
|
|
std::vector<std::string> inputFiles;
|
|
std::string outputFile;
|
|
bool overwrite;
|
|
bool keepSource;
|
|
WriteMode writeMode;
|
|
bool checksum;
|
|
int verbosity;
|
|
|
|
enum class Status {
|
|
Success, // Successfully parsed options
|
|
Failure, // Failure to parse options
|
|
Message // Options specified to print a message (e.g. "-h")
|
|
};
|
|
|
|
Options();
|
|
Options(unsigned numThreads, unsigned maxWindowLog, unsigned compressionLevel,
|
|
bool decompress, std::vector<std::string> inputFiles,
|
|
std::string outputFile, bool overwrite, bool keepSource,
|
|
WriteMode writeMode, bool checksum, int verbosity)
|
|
: numThreads(numThreads), maxWindowLog(maxWindowLog),
|
|
compressionLevel(compressionLevel), decompress(decompress),
|
|
inputFiles(std::move(inputFiles)), outputFile(std::move(outputFile)),
|
|
overwrite(overwrite), keepSource(keepSource), writeMode(writeMode),
|
|
checksum(checksum), verbosity(verbosity) {}
|
|
|
|
Status parse(int argc, const char **argv);
|
|
|
|
ZSTD_parameters determineParameters() const {
|
|
ZSTD_parameters params = ZSTD_getParams(compressionLevel, 0, 0);
|
|
params.fParams.contentSizeFlag = 0;
|
|
params.fParams.checksumFlag = checksum;
|
|
if (maxWindowLog != 0 && params.cParams.windowLog > maxWindowLog) {
|
|
params.cParams.windowLog = maxWindowLog;
|
|
params.cParams = ZSTD_adjustCParams(params.cParams, 0, 0);
|
|
}
|
|
return params;
|
|
}
|
|
|
|
std::string getOutputFile(const std::string &inputFile) const;
|
|
};
|
|
}
|