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