| 1 | /* |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This source code is licensed under both the BSD-style license (found in the |
| 6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
| 7 | * in the COPYING file in the root directory of this source tree). |
| 8 | */ |
| 9 | extern "C" { |
| 10 | #include "datagen.h" |
| 11 | } |
| 12 | #include "Options.h" |
| 13 | #include "test/RoundTrip.h" |
| 14 | #include "utils/ScopeGuard.h" |
| 15 | |
| 16 | #include <cstddef> |
| 17 | #include <cstdio> |
| 18 | #include <cstdlib> |
| 19 | #include <memory> |
| 20 | #include <random> |
| 21 | |
| 22 | using namespace std; |
| 23 | using namespace pzstd; |
| 24 | |
| 25 | namespace { |
| 26 | string |
| 27 | writeData(size_t size, double matchProba, double litProba, unsigned seed) { |
| 28 | std::unique_ptr<uint8_t[]> buf(new uint8_t[size]); |
| 29 | RDG_genBuffer(buf.get(), size, matchProba, litProba, seed); |
| 30 | string file = tmpnam(nullptr); |
| 31 | auto fd = std::fopen(file.c_str(), "wb"); |
| 32 | auto guard = makeScopeGuard([&] { std::fclose(fd); }); |
| 33 | auto bytesWritten = std::fwrite(buf.get(), 1, size, fd); |
| 34 | if (bytesWritten != size) { |
| 35 | std::abort(); |
| 36 | } |
| 37 | return file; |
| 38 | } |
| 39 | |
| 40 | template <typename Generator> |
| 41 | string generateInputFile(Generator& gen) { |
| 42 | // Use inputs ranging from 1 Byte to 2^16 Bytes |
| 43 | std::uniform_int_distribution<size_t> size{1, 1 << 16}; |
| 44 | std::uniform_real_distribution<> prob{0, 1}; |
| 45 | return writeData(size(gen), prob(gen), prob(gen), gen()); |
| 46 | } |
| 47 | |
| 48 | template <typename Generator> |
| 49 | Options generateOptions(Generator& gen, const string& inputFile) { |
| 50 | Options options; |
| 51 | options.inputFiles = {inputFile}; |
| 52 | options.overwrite = true; |
| 53 | |
| 54 | std::uniform_int_distribution<unsigned> numThreads{1, 32}; |
| 55 | std::uniform_int_distribution<unsigned> compressionLevel{1, 10}; |
| 56 | |
| 57 | options.numThreads = numThreads(gen); |
| 58 | options.compressionLevel = compressionLevel(gen); |
| 59 | |
| 60 | return options; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | int main() { |
| 65 | std::mt19937 gen(std::random_device{}()); |
| 66 | |
| 67 | auto newlineGuard = makeScopeGuard([] { std::fprintf(stderr, "\n"); }); |
| 68 | for (unsigned i = 0; i < 10000; ++i) { |
| 69 | if (i % 100 == 0) { |
| 70 | std::fprintf(stderr, "Progress: %u%%\r", i / 100); |
| 71 | } |
| 72 | auto inputFile = generateInputFile(gen); |
| 73 | auto inputGuard = makeScopeGuard([&] { std::remove(inputFile.c_str()); }); |
| 74 | for (unsigned i = 0; i < 10; ++i) { |
| 75 | auto options = generateOptions(gen, inputFile); |
| 76 | if (!roundTrip(options)) { |
| 77 | std::fprintf(stderr, "numThreads: %u\n", options.numThreads); |
| 78 | std::fprintf(stderr, "level: %u\n", options.compressionLevel); |
| 79 | std::fprintf(stderr, "decompress? %u\n", (unsigned)options.decompress); |
| 80 | std::fprintf(stderr, "file: %s\n", inputFile.c_str()); |
| 81 | return 1; |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | return 0; |
| 86 | } |