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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERFORMANCE_MANAGER_RESOURCE_ATTRIBUTION_QUERY_PARAMS_H_
#define COMPONENTS_PERFORMANCE_MANAGER_RESOURCE_ATTRIBUTION_QUERY_PARAMS_H_
#include <memory>
#include <optional>
#include "base/types/id_type.h"
#include "base/types/pass_key.h"
#include "components/performance_manager/public/resource_attribution/resource_types.h"
#include "components/performance_manager/resource_attribution/context_collection.h"
namespace resource_attribution::internal {
class QueryScheduler;
// Id to identify the ScopedResourceUsageQuery that QueryParams came from.
// One-shot queries (created with QueryBuilder::QueryOnce()) won't have an id.
using QueryId = base::IdTypeU32<class QueryIdTag>;
class QueryParams {
public:
QueryParams();
~QueryParams();
// Move-only.
QueryParams(const QueryParams&) = delete;
QueryParams& operator=(const QueryParams&) = delete;
QueryParams(QueryParams&& other);
QueryParams& operator=(QueryParams&& other);
// Resource types to measure.
ResourceTypeSet resource_types;
// Contexts to measure.
ContextCollection contexts;
// Only QueryScheduler can access the QueryId outside of tests, to ensure it's
// only used on the QueryScheduler sequence.
const std::optional<QueryId>& GetId(base::PassKey<QueryScheduler>) const {
return id_;
}
std::optional<QueryId>& GetMutableId(base::PassKey<QueryScheduler>) {
return id_;
}
// Allow tests to validate the QueryId, but not update it.
std::optional<QueryId> GetIdForTesting() const { return id_; }
// Returns a copy of these params without a QueryId, to create an identical
// query.
std::unique_ptr<QueryParams> Clone() const;
private:
std::optional<QueryId> id_;
};
} // namespace resource_attribution::internal
#endif // COMPONENTS_PERFORMANCE_MANAGER_RESOURCE_ATTRIBUTION_QUERY_PARAMS_H_
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