//
// LDASTools AL - A library collection to provide an abstraction layer
//
// Copyright (C) 2018 California Institute of Technology
//
// LDASTools AL is free software; you may redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 (GPLv2) of the
// License or at your discretion, any later version.
//
// LDASTools AL is distributed in the hope that it will be useful, but
// without any warranty or even the implied warranty of merchantability
// or fitness for a particular purpose. See the GNU General Public
// License (GPLv2) for more details.
//
// Neither the names of the California Institute of Technology (Caltech),
// The Massachusetts Institute of Technology (M.I.T), The Laser
// Interferometer Gravitational-Wave Observatory (LIGO), nor the names
// of its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// You should have received a copy of the licensing terms for this
// software included in the file LICENSE located in the top-level
// directory of this package. If you did not, you can view a copy at
// http://dcc.ligo.org/M1500244/LICENSE
//

#include <assert.h>

#include "ldastoolsal/ErrorLog.hh"
#include "ldastoolsal/gpstime.hh"

namespace LDASTools
{
    namespace AL
    {
        ErrorLog StdErrLog( std::cerr, false );
        ErrorLog JournalLog( std::cerr, true );

        bool ErrorLog::m_abort_on_assert_failure = false;

        ErrorLog::ErrorLog( std::ostream& Stream, bool OpenState )
            : m_stream( &Stream ), m_is_open( OpenState ), m_mask( 0 )
        {
            MaskBitSet( ASSERT_FAILURE );
            MaskBitSet( FATAL );
            MaskBitSet( WARNING );
        }

        ErrorLog::~ErrorLog( )
        {
        }

        void
        ErrorLog::operator( )( state              State,
                               const char*        Filename,
                               const int          Line,
                               const std::string& Message,
                               bool               EOL )
        {
            if ( IsOpen( ) && ( m_mask & ( 1 << State ) ) )
            {
                //-------------------------------------------------------------------
                // Ensure only one process writing to the stream at a time
                //-------------------------------------------------------------------
                MutexLock lock( m_lock, __FILE__, __LINE__ );

                ( *m_stream ) << GPSTime::now( ) << " " << Filename << " "
                              << Line << " -- " << Message;
                if ( EOL )
                {
                    ( *m_stream ) << std::endl;
                }
                ( *m_stream ) << std::flush;
                if ( ( State == ASSERT_FAILURE ) &&
                     ( m_abort_on_assert_failure ) )
                {
                    assert( false );
                }
            }
        }
    } // namespace AL
} // namespace LDASTools
