openal-soft/OpenAL32/alError.c

/**
 * OpenAL cross platform audio library
 * Copyright (C) 1999-2000 by authors.
 * This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 *  License along with this library; if not, write to the
 *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *  Boston, MA  02111-1307, USA.
 * Or go to http://www.gnu.org/copyleft/lgpl.html
 */

#include "config.h"

#include <signal.h>

#include "alMain.h"
#include "AL/alc.h"
#include "alError.h"

ALboolean TrapALError = AL_FALSE;

AL_API ALenum AL_APIENTRY alGetError(void)
{
    ALCcontext *Context;
    ALenum errorCode;

    Context = GetContextRef();
    if(!Context) return AL_INVALID_OPERATION;

    errorCode = ExchangeInt(&Context->LastError, AL_NO_ERROR);

    ALCcontext_DecRef(Context);

    return errorCode;
}

ALvoid alSetError(ALCcontext *Context, ALenum errorCode)
{
    if(TrapALError)
    {
#ifdef _WIN32
        /* DebugBreak will cause an exception if there is no debugger */
        if(IsDebuggerPresent())
            DebugBreak();
#elif defined(SIGTRAP)
        raise(SIGTRAP);
#endif
    }
    CompExchangeInt(&Context->LastError, AL_NO_ERROR, errorCode);
}