greenplumn CTaskContext 源码
greenplumn CTaskContext 代码
文件路径：/src/backend/gporca/libgpos/src/task/CTaskContext.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2008 Greenplum, Inc.
//
// @filename:
// CTaskContext.cpp
//
// @doc:
// Task context implementation
//---------------------------------------------------------------------------
#include "gpos/task/CTaskContext.h"
#include "gpos/common/CAutoRef.h"
#include "gpos/error/CLoggerStream.h"
using namespace gpos;
//---------------------------------------------------------------------------
// @function:
// CTaskContext::CTaskContext
//
// @doc:
// ctor
//
//---------------------------------------------------------------------------
CTaskContext::CTaskContext(CMemoryPool *mp)
: m_bitset(nullptr),
m_log_out(&CLoggerStream::m_stdout_stream_logger),
m_log_err(&CLoggerStream::m_stderr_stream_logger),
m_locale(ElocEnUS_Utf8)
{
m_bitset = GPOS_NEW(mp) CBitSet(mp, EtraceSentinel);
}
//---------------------------------------------------------------------------
// @function:
// CTaskContext::CTaskContext
//
// @doc:
// used to inherit parent task's context
//
//---------------------------------------------------------------------------
CTaskContext::CTaskContext(CMemoryPool *mp, const CTaskContext &task_ctxt)
: m_bitset(nullptr),
m_log_out(task_ctxt.GetOutputLogger()),
m_log_err(task_ctxt.GetErrorLogger()),
m_locale(task_ctxt.Locale())
{
// allocate bitset and union separately to guard against leaks under OOM
CAutoRef<CBitSet> bitset;
bitset = GPOS_NEW(mp) CBitSet(mp);
bitset->Union(task_ctxt.m_bitset);
m_bitset = bitset.Reset();
}
//---------------------------------------------------------------------------
// @function:
// CTaskContext::~CTaskContext
//
// @doc:
// dtor
//
//---------------------------------------------------------------------------
CTaskContext::~CTaskContext()
{
CRefCount::SafeRelease(m_bitset);
}
//---------------------------------------------------------------------------
// @function:
// CTaskContext::Trace
//
// @doc:
// Set trace flag; return original setting
//
//---------------------------------------------------------------------------
BOOL
CTaskContext::SetTrace(ULONG trace, BOOL val)
{
if (val)
{
return m_bitset->ExchangeSet(trace);
}
else
{
return m_bitset->ExchangeClear(trace);
}
}
// EOF
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