greenplumn CLoggerStream 源码
greenplumn CLoggerStream 代码
文件路径：/src/backend/gporca/libgpos/include/gpos/error/CLoggerStream.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CLoggerStream.h
//
// @doc:
// Implementation of logging interface over stream
//---------------------------------------------------------------------------
#ifndef GPOS_CLoggerStream_H
#define GPOS_CLoggerStream_H
#include "gpos/error/CLogger.h"
#include "gpos/io/IOstream.h"
namespace gpos
{
//---------------------------------------------------------------------------
// @class:
// CLoggerStream
//
// @doc:
// Stream logging.
//
//---------------------------------------------------------------------------
class CLoggerStream : public CLogger
{
private:
// log stream
IOstream &m_os;
// write string to stream
void
Write(const WCHAR *log_entry,
ULONG // severity
) override
{
m_os = m_os << log_entry;
}
public:
CLoggerStream(const CLoggerStream &) = delete;
// ctor
CLoggerStream(IOstream &os);
// dtor
~CLoggerStream() override;
// wrapper for stdout
static CLoggerStream m_stdout_stream_logger;
// wrapper for stderr
static CLoggerStream m_stderr_stream_logger;
}; // class CLoggerStream
} // namespace gpos
#endif // !GPOS_CLoggerStream_H
// EOF
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