ibrcommon/ibrcommon/SyslogStream.cpp

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/*
 * File:   SyslogStream.cpp
 * Author: morgenro
 *
 * Created on 17. November 2009, 13:43
 */

#include "ibrcommon/config.h"
#include "ibrcommon/SyslogStream.h"
#include <syslog.h>

namespace ibrcommon
{
        std::ostream &slog = SyslogStream::getStream();

        SyslogStream::SyslogStream() : m_buf( BUF_SIZE+1 ), _prio(SYSLOG_INFO)
        {
                setp( &m_buf[0], &m_buf[0] + (m_buf.size()-1) );
        }

        SyslogStream::~SyslogStream()
        {
        }

        void SyslogStream::open(char *name, int option, int facility)
        {
                ::openlog(name, option, facility);
        }

        std::ostream& SyslogStream::getStream()
        {
                static SyslogStream syslogbuf;
                static std::ostream stream(&syslogbuf);

                return stream;
        }

        int SyslogStream::sync()
        {
                if( pptr() > pbase() )
                        writeToDevice();
                return 0; // 0 := Ok
        }

        void SyslogStream::setPriority(const SyslogPriority &prio)
        {
                _prio = prio;
        }

        void SyslogStream::writeToDevice()
        {
                *pptr() = 0; // End Of String
                ::syslog( _prio, "%s", pbase() );
                setp( &m_buf[0], &m_buf[0] + (m_buf.size()-1) );
        }

        std::ostream &operator<<(std::ostream &stream, const SyslogPriority &prio)
        {
                SyslogStream *slog = dynamic_cast<SyslogStream*>(stream.rdbuf());

                if (slog != NULL)
                {
                        slog->setPriority(prio);
                }
                else
                {
                        const char data = prio;
                        stream.write(&data, sizeof(char));
                }

                return stream;
        }
}