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/*
* Copyright (C) 2022 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 SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_TO_FTRACE_H_
#define SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_TO_FTRACE_H_
#include "perfetto/ext/base/flat_hash_map.h"
#include "perfetto/ext/base/string_writer.h"
#include "src/trace_processor/prelude/functions/sql_function.h"
#include "src/trace_processor/storage/trace_storage.h"
#include "src/trace_processor/types/trace_processor_context.h"
namespace perfetto {
namespace trace_processor {
class SystraceSerializer {
public:
using ScopedCString = std::unique_ptr<char, void (*)(void*)>;
explicit SystraceSerializer(TraceProcessorContext* context);
ScopedCString SerializeToString(uint32_t raw_row);
private:
using StringIdMap =
base::FlatHashMap<StringId, std::vector<std::optional<uint32_t>>>;
void SerializePrefix(uint32_t raw_row, base::StringWriter* writer);
StringIdMap proto_id_to_arg_index_by_event_;
const TraceStorage* storage_ = nullptr;
TraceProcessorContext* context_ = nullptr;
};
struct ToFtrace : public SqlFunction {
struct Context {
const TraceStorage* storage;
SystraceSerializer serializer;
};
static base::Status Run(Context*,
size_t argc,
sqlite3_value** argv,
SqlValue& out,
Destructors& destructors);
};
} // namespace trace_processor
} // namespace perfetto
#endif // SRC_TRACE_PROCESSOR_PRELUDE_FUNCTIONS_TO_FTRACE_H_
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