greenplumn CAutoTimer 代码
文件路径：/src/backend/gporca/libgpos/src/common/CAutoTimer.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2008 - 2010 Greenplum, Inc.
/
/ @filename:
/ CAutoTimer.cpp
/
/ @doc:
/ Implementation of wrapper around wall clock timer
/---------------------------------------------------------------------------
#include "gpos/common/CAutoTimer.h"
#include "gpos/base.h"
#include "gpos/task/CAutoSuspendAbort.h"
using namespace gpos;
/---------------------------------------------------------------------------
/ @function:
/ CAutoTimer::CAutoTimer
/
/ @doc:
/ ctor
/
/---------------------------------------------------------------------------
CAutoTimer::CAutoTimer(const CHAR *sz, BOOL fPrint)
: m_timer_text_label(sz), m_print_text_label(fPrint)
{
GPOS_ASSERT(nullptr != sz);
}
/---------------------------------------------------------------------------
/ @function:
/ CAutoTimer::~CAutoTimer
/
/ @doc:
/ Destructor prints time difference and label
/
/---------------------------------------------------------------------------
CAutoTimer::~CAutoTimer() throw()
{
if (m_print_text_label)
{
/ suspend cancellation - destructors should not throw
CAutoSuspendAbort asa;
ULONG ulElapsedTimeMS = m_clock.ElapsedMS();
GPOS_TRACE_FORMAT("timer:%s: %dms", m_timer_text_label,
ulElapsedTimeMS);
}
}
/ EOF