ClickHouse/dbms/src/Storages/System/StorageSystemStackTrace.h

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#pragma once
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#ifdef OS_LINUX /// Because of 'sigqueue' functions and RT signals.
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#include <mutex>
#include <ext/shared_ptr_helper.h>
#include <Storages/System/IStorageSystemOneBlock.h>
namespace DB
{
class Context;
/// Allows to introspect stack trace of all server threads.
/// It acts like an embedded debugger.
class StorageSystemStackTrace : public ext::shared_ptr_helper<StorageSystemStackTrace>, public IStorageSystemOneBlock<StorageSystemStackTrace>
{
friend struct ext::shared_ptr_helper<StorageSystemStackTrace>;
public:
String getName() const override { return "SystemStackTrace"; }
static NamesAndTypesList getNamesAndTypes();
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StorageSystemStackTrace(const String & name_);
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protected:
using IStorageSystemOneBlock::IStorageSystemOneBlock;
void fillData(MutableColumns & res_columns, const Context & context, const SelectQueryInfo & query_info) const override;
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mutable std::mutex mutex;
};
}
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#endif