chromium/third_party/perfetto/include/perfetto/trace_processor/iterator.h

/*
 * Copyright (C) 2020 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_TRACE_PROCESSOR_ITERATOR_H_
#define INCLUDE_PERFETTO_TRACE_PROCESSOR_ITERATOR_H_

#include <stdint.h>

#include <memory>

#include "perfetto/base/export.h"
#include "perfetto/trace_processor/basic_types.h"
#include "perfetto/trace_processor/status.h"

namespace perfetto {
namespace trace_processor {

class IteratorImpl;

// Iterator returning SQL rows satisfied by a query.
//
// Example usage:
// auto sql = "select name, ifnull(cat, "[NULL]") from slice";
// for (auto it = tp.ExecuteQuery(sql); it.Next();)
//   for (uint32_t i = 0; i < it.ColumnCount(); ++i) {
//     printf("%s ", it.Get(i).AsString());
//   }
//   printf("\n");
// }
class PERFETTO_EXPORT_COMPONENT Iterator { … };

}  // namespace trace_processor
}  // namespace perfetto

#endif  // INCLUDE_PERFETTO_TRACE_PROCESSOR_ITERATOR_H_