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/*
* Copyright (C) 2023 The Android Open Source Project
*
* 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
*
* http://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.
*/
#ifndef INCLUDE_PERFETTO_EXT_CLOUD_TRACE_PROCESSOR_ENVIRONMENT_H_
#define INCLUDE_PERFETTO_EXT_CLOUD_TRACE_PROCESSOR_ENVIRONMENT_H_
#include <functional>
#include <memory>
#include <vector>
#include "perfetto/base/status.h"
#include "perfetto/base/task_runner.h"
#include "perfetto/ext/base/status_or.h"
#include "perfetto/ext/base/threading/stream.h"
namespace perfetto {
namespace cloud_trace_processor {
// Shim interface allowing embedders to change how operations which interact
// with the OS operate (e.g. IO, networking etc).
class CtpEnvironment {
public:
virtual ~CtpEnvironment();
// Opens the file at |path| and reads the contents in chunks, returning the
// the chunks as a Stream. The size of the chunks is implementation defined
// but should be sized to balance memory use and syscall count.
virtual base::StatusOrStream<std::vector<uint8_t>> ReadFile(
const std::string& path) = 0;
};
} // namespace cloud_trace_processor
} // namespace perfetto
#endif // INCLUDE_PERFETTO_EXT_CLOUD_TRACE_PROCESSOR_ENVIRONMENT_H_
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