sandboxed-api/oss-internship-2020/guetzli/guetzli_transaction.h

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// Copyright 2020 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
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//
// 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.
#ifndef GUETZLI_SANDBOXED_GUETZLI_TRANSACTION_H_
#define GUETZLI_SANDBOXED_GUETZLI_TRANSACTION_H_
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#include <syscall.h>
#include "guetzli_sandbox.h" // NOLINT(build/include)
#include "absl/status/statusor.h"
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#include "sandboxed_api/transaction.h"
#include "sandboxed_api/vars.h"
namespace guetzli::sandbox {
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enum class ImageType { kJpeg, kPng };
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struct TransactionParams {
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const char* in_file = nullptr;
const char* out_file = nullptr;
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int verbose = 0;
int quality = 0;
int memlimit_mb = 0;
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};
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// Instance of this transaction shouldn't be reused
// Create a new one for each processing operation
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class GuetzliTransaction : public sapi::Transaction {
public:
explicit GuetzliTransaction(TransactionParams params, int retry_count = 0)
: sapi::Transaction(std::make_unique<GuetzliSapiSandbox>()),
params_(std::move(params)) {
set_retry_count(retry_count);
SetTimeLimit(absl::InfiniteDuration());
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}
private:
absl::Status Main() final;
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absl::Status LinkOutFile(int out_fd) const;
absl::StatusOr<ImageType> GetImageTypeFromFd(int fd) const;
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const TransactionParams params_;
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ImageType image_type_ = ImageType::kJpeg;
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};
} // namespace guetzli::sandbox
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#endif // GUETZLI_SANDBOXED_GUETZLI_TRANSACTION_H_