greenplumn CAutoTimer 代码
文件路径：/src/backend/gporca/libgpos/include/gpos/common/CAutoTimer.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2009 Greenplum, Inc.
/
/ @filename:
/ CAutoTimer.h
/
/ @doc:
/ A timer which records wall-time between construction and destruction;
/---------------------------------------------------------------------------
#ifndef GPOS_CAutoTimer_H
#define GPOS_CAutoTimer_H
#include "gpos/common/CStackObject.h"
#include "gpos/common/CWallClock.h"
namespace gpos
{
/---------------------------------------------------------------------------
/ @class:
/ CAutoTimer
/
/ @doc:
/ Wrapper around timer object; prints elapsed time when going out of
/ scope as indicated (ctor argument);
/
/---------------------------------------------------------------------------
class CAutoTimer : public CStackObject
{
private:
/ actual timer
CWallClock m_clock;
/ label for timer output
const CHAR *m_timer_text_label;
/ trigger printing at destruction time
BOOL m_print_text_label;
public:
CAutoTimer(const CAutoTimer &) = delete;
/ ctor
CAutoTimer(const CHAR *sz, BOOL fPrint);
/ dtor
~CAutoTimer() throw();
}; / class CAutoTimer
} / namespace gpos
#endif / !GPOS_CAutoTimer_H
/ EOF