greenplumn CTaskContext 源码
greenplumn CTaskContext 代码
文件路径：/src/backend/gporca/libgpos/include/gpos/task/CTaskContext.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2008 Greenplum, Inc.
//
// @filename:
// CTaskContext.h
//
// @doc:
// Context object for task; holds configurable state of worker, e.g.
// GUCs, trace options, output streams etc.; by default inherited from
// parent task
//---------------------------------------------------------------------------
#ifndef GPOS_CTaskContext_H
#define GPOS_CTaskContext_H
#include "gpos/base.h"
#include "gpos/common/CBitSet.h"
namespace gpos
{
class CTaskContext
{
// trace flag iterator needs access to trace vector
friend class CTraceFlagIter;
private:
// trace vector
CBitSet *m_bitset;
// output log abstraction
ILogger *m_log_out;
// error log abstraction
ILogger *m_log_err;
// locale of messages
ELocale m_locale;
public:
// basic ctor; used only for the main worker
CTaskContext(CMemoryPool *mp);
// copy ctor
// used to inherit parent task's context
CTaskContext(CMemoryPool *mp, const CTaskContext &task_ctxt);
// dtor
~CTaskContext();
// accessors
inline ILogger *
GetOutputLogger() const
{
return m_log_out;
}
inline ILogger *
GetErrorLogger() const
{
return m_log_err;
}
void
SetLogOut(ILogger *log_out)
{
GPOS_ASSERT(nullptr != log_out);
m_log_out = log_out;
}
void
SetLogErr(ILogger *log_err)
{
GPOS_ASSERT(nullptr != log_err);
m_log_err = log_err;
}
// set trace flag
BOOL SetTrace(ULONG trace, BOOL val);
// test if tracing on
inline BOOL
IsTraceSet(ULONG trace)
{
return m_bitset->Get(trace);
}
// locale
ELocale
Locale() const
{
return m_locale;
}
void
SetLocale(ELocale locale)
{
m_locale = locale;
}
CBitSet *
copy_trace_flags(CMemoryPool *mp) const
{
return GPOS_NEW(mp) CBitSet(mp, *m_bitset);
}
}; // class CTaskContext
} // namespace gpos
#endif // !GPOS_CTaskContext_H
// EOF
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