mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-02 04:22:03 +00:00
34 lines
1001 B
C++
34 lines
1001 B
C++
#pragma once
|
|
|
|
#include <ext/shared_ptr_helper.h>
|
|
#include <Storages/System/IStorageSystemOneBlock.h>
|
|
|
|
namespace DB
|
|
{
|
|
|
|
class AsynchronousMetrics;
|
|
class Context;
|
|
|
|
|
|
/** Implements system table asynchronous_metrics, which allows to get values of periodically (asynchronously) updated metrics.
|
|
*/
|
|
class StorageSystemAsynchronousMetrics final : public ext::shared_ptr_helper<StorageSystemAsynchronousMetrics>,
|
|
public IStorageSystemOneBlock<StorageSystemAsynchronousMetrics>
|
|
{
|
|
friend struct ext::shared_ptr_helper<StorageSystemAsynchronousMetrics>;
|
|
public:
|
|
std::string getName() const override { return "SystemAsynchronousMetrics"; }
|
|
|
|
static NamesAndTypesList getNamesAndTypes();
|
|
|
|
private:
|
|
const AsynchronousMetrics & async_metrics;
|
|
|
|
protected:
|
|
StorageSystemAsynchronousMetrics(const std::string & name_, const AsynchronousMetrics & async_metrics_);
|
|
|
|
void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo & query_info) const override;
|
|
};
|
|
|
|
}
|