mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-18 13:42:02 +00:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
#pragma once
|
||
|
||
#include <ext/shared_ptr_helper.hpp>
|
||
|
||
#include <DB/Storages/IStorage.h>
|
||
|
||
|
||
namespace DB
|
||
{
|
||
|
||
/** Реализует системную таблицу metrics, которая позволяет получить информацию о работе сервера.
|
||
*/
|
||
class StorageSystemMetrics : private ext::shared_ptr_helper<StorageSystemMetrics>, public IStorage
|
||
{
|
||
friend class ext::shared_ptr_helper<StorageSystemMetrics>;
|
||
|
||
public:
|
||
static StoragePtr create(const std::string & name_);
|
||
|
||
std::string getName() const override { return "SystemMetrics"; }
|
||
std::string getTableName() const override { return name; }
|
||
|
||
const NamesAndTypesList & getColumnsListImpl() const override { return columns; }
|
||
|
||
BlockInputStreams read(
|
||
const Names & column_names,
|
||
ASTPtr query,
|
||
const Context & context,
|
||
const Settings & settings,
|
||
QueryProcessingStage::Enum & processed_stage,
|
||
size_t max_block_size = DEFAULT_BLOCK_SIZE,
|
||
unsigned threads = 1) override;
|
||
|
||
private:
|
||
const std::string name;
|
||
NamesAndTypesList columns;
|
||
|
||
StorageSystemMetrics(const std::string & name_);
|
||
};
|
||
|
||
}
|