sandboxed-api/contrib/zstd/example/main.cc

83 lines
2.6 KiB
C++
Raw Normal View History

2022-01-20 18:12:57 +08:00
// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <unistd.h>
#include <cstdlib>
2022-01-20 18:12:57 +08:00
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
2022-01-20 18:12:57 +08:00
#include "sandboxed_api/util/flag.h"
#include "absl/flags/parse.h"
#include "contrib/zstd/sandboxed.h"
#include "contrib/zstd/utils/utils_zstd.h"
2022-01-20 18:12:57 +08:00
ABSL_FLAG(bool, decompress, false, "decompress");
ABSL_FLAG(bool, memory_mode, false, "in memory operations");
ABSL_FLAG(uint32_t, level, 0, "compression level");
int main(int argc, char* argv[]) {
std::string prog_name(argv[0]);
google::InitGoogleLogging(argv[0]);
std::vector<char*> args = absl::ParseCommandLine(argc, argv);
if (args.size() != 3) {
std::cerr << "Usage:\n " << prog_name << " INPUT OUTPUT\n";
return EXIT_FAILURE;
}
std::ifstream infile(args[1], std::ios::binary);
if (!infile.is_open()) {
std::cerr << "Unable to open " << args[1] << std::endl;
return EXIT_FAILURE;
}
std::ofstream outfile(args[2], std::ios::binary);
if (!outfile.is_open()) {
std::cerr << "Unable to open " << args[2] << std::endl;
return EXIT_FAILURE;
}
ZstdSapiSandbox sandbox;
if (!sandbox.Init().ok()) {
std::cerr << "Unable to start sandbox\n";
return EXIT_FAILURE;
}
ZstdApi api(&sandbox);
absl::Status status;
if (absl::GetFlag(FLAGS_memory_mode) && absl::GetFlag(FLAGS_decompress)) {
status = DecompressInMemory(api, infile, outfile);
} else if (absl::GetFlag(FLAGS_memory_mode) &&
!absl::GetFlag(FLAGS_decompress)) {
status = CompressInMemory(api, infile, outfile, absl::GetFlag(FLAGS_level));
} else if (!absl::GetFlag(FLAGS_memory_mode) &&
absl::GetFlag(FLAGS_decompress)) {
status = DecompressStream(api, infile, outfile);
} else {
status = CompressStream(api, infile, outfile, absl::GetFlag(FLAGS_level));
}
if (!status.ok()) {
std::cerr << "Unable to ";
std::cerr << (absl::GetFlag(FLAGS_decompress) ? "decompress" : "compress");
std::cerr << " file.\n" << status << "\n";
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}