greenplumn CPrintPrefix 代码
文件路径：/src/backend/gporca/libgpopt/src/base/CPrintPrefix.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2009 Greenplum, Inc.
/
/ @filename:
/ CPrintPrefix.cpp
/
/ @doc:
/ Implementation of print prefix class
/---------------------------------------------------------------------------
#include "gpopt/base/CPrintPrefix.h"
#include "gpos/base.h"
#include "gpos/task/IWorker.h"
using namespace gpopt;
/---------------------------------------------------------------------------
/ @function:
/ CPrintPrefix::CPrintPrefix
/
/ @doc:
/ ctor
/
/---------------------------------------------------------------------------
CPrintPrefix::CPrintPrefix(const CPrintPrefix *ppfx, const CHAR *sz)
: m_ppfx(ppfx), m_sz(sz)
{
GPOS_ASSERT(nullptr != sz);
}
/---------------------------------------------------------------------------
/ @function:
/ CPrintPrefix::OsPrint
/
/ @doc:
/ print function;
/ recursively traverse the linked list of prefixes and print them
/ in reverse order
/
/---------------------------------------------------------------------------
IOstream &
CPrintPrefix::OsPrint(IOstream &os) const
{
GPOS_CHECK_STACK_SIZE;
if (nullptr != m_ppfx)
{
(void) m_ppfx->OsPrint(os);
}
os << m_sz;
return os;
}
/ EOF
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