mirror of
https://github.com/facebook/zstd.git
synced 2025-10-30 10:25:39 +03:00
87 lines
2.5 KiB
C++
87 lines
2.5 KiB
C++
/**
|
|
* Copyright (c) 2016-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*/
|
|
extern "C" {
|
|
#include "datagen.h"
|
|
}
|
|
#include "Options.h"
|
|
#include "test/RoundTrip.h"
|
|
#include "utils/ScopeGuard.h"
|
|
|
|
#include <cstddef>
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
#include <memory>
|
|
#include <random>
|
|
|
|
using namespace std;
|
|
using namespace pzstd;
|
|
|
|
namespace {
|
|
string
|
|
writeData(size_t size, double matchProba, double litProba, unsigned seed) {
|
|
std::unique_ptr<uint8_t[]> buf(new uint8_t[size]);
|
|
RDG_genBuffer(buf.get(), size, matchProba, litProba, seed);
|
|
string file = tmpnam(nullptr);
|
|
auto fd = std::fopen(file.c_str(), "wb");
|
|
auto guard = makeScopeGuard([&] { std::fclose(fd); });
|
|
auto bytesWritten = std::fwrite(buf.get(), 1, size, fd);
|
|
if (bytesWritten != size) {
|
|
std::abort();
|
|
}
|
|
return file;
|
|
}
|
|
|
|
template <typename Generator>
|
|
string generateInputFile(Generator& gen) {
|
|
// Use inputs ranging from 1 Byte to 2^16 Bytes
|
|
std::uniform_int_distribution<size_t> size{1, 1 << 16};
|
|
std::uniform_real_distribution<> prob{0, 1};
|
|
return writeData(size(gen), prob(gen), prob(gen), gen());
|
|
}
|
|
|
|
template <typename Generator>
|
|
Options generateOptions(Generator& gen, const string& inputFile) {
|
|
Options options;
|
|
options.inputFiles = {inputFile};
|
|
options.overwrite = true;
|
|
|
|
std::uniform_int_distribution<unsigned> numThreads{1, 32};
|
|
std::uniform_int_distribution<unsigned> compressionLevel{1, 10};
|
|
|
|
options.numThreads = numThreads(gen);
|
|
options.compressionLevel = compressionLevel(gen);
|
|
|
|
return options;
|
|
}
|
|
}
|
|
|
|
int main() {
|
|
std::mt19937 gen(std::random_device{}());
|
|
|
|
auto newlineGuard = makeScopeGuard([] { std::fprintf(stderr, "\n"); });
|
|
for (unsigned i = 0; i < 10000; ++i) {
|
|
if (i % 100 == 0) {
|
|
std::fprintf(stderr, "Progress: %u%%\r", i / 100);
|
|
}
|
|
auto inputFile = generateInputFile(gen);
|
|
auto inputGuard = makeScopeGuard([&] { std::remove(inputFile.c_str()); });
|
|
for (unsigned i = 0; i < 10; ++i) {
|
|
auto options = generateOptions(gen, inputFile);
|
|
if (!roundTrip(options)) {
|
|
std::fprintf(stderr, "numThreads: %u\n", options.numThreads);
|
|
std::fprintf(stderr, "level: %u\n", options.compressionLevel);
|
|
std::fprintf(stderr, "decompress? %u\n", (unsigned)options.decompress);
|
|
std::fprintf(stderr, "file: %s\n", inputFile.c_str());
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|