greenplumn CAutoTimer 源码
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
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