C++ (Cpp) ATOMIC_STORE_SEQ Examples

Example #1

void FreeThunkEntry(ALuint index)
{
    ReadLock(&ThunkLock);
    if(index > 0 && index <= ThunkArraySize)
        ATOMIC_STORE_SEQ(&ThunkArray[index-1], AL_FALSE);
    ReadUnlock(&ThunkLock);
}

Example #2

File: solaris.c Project: xxxbxxx/openal-soft

static ALCboolean ALCsolarisBackend_start(ALCsolarisBackend *self)
{
    ATOMIC_STORE_SEQ(&self->killNow, AL_FALSE);
    if(althrd_create(&self->thread, ALCsolarisBackend_mixerProc, self) != althrd_success)
        return ALC_FALSE;
    return ALC_TRUE;
}

Example #3

ALenum NewThunkEntry(ALuint *index)
{
    void *NewList;
    ALuint i;

    ReadLock(&ThunkLock);
    for(i = 0;i < ThunkArraySize;i++)
    {
        if(ATOMIC_EXCHANGE(ALenum, &ThunkArray[i], AL_TRUE, almemory_order_acq_rel) == AL_FALSE)
        {
            ReadUnlock(&ThunkLock);
            *index = i+1;
            return AL_NO_ERROR;
        }
    }
    ReadUnlock(&ThunkLock);

    WriteLock(&ThunkLock);
    /* Double-check that there's still no free entries, in case another
     * invocation just came through and increased the size of the array.
     */
    for(;i < ThunkArraySize;i++)
    {
        if(ATOMIC_EXCHANGE(ALenum, &ThunkArray[i], AL_TRUE, almemory_order_acq_rel) == AL_FALSE)
        {
            WriteUnlock(&ThunkLock);
            *index = i+1;
            return AL_NO_ERROR;
        }
    }

    NewList = al_calloc(16, ThunkArraySize*2 * sizeof(*ThunkArray));
    if(!NewList)
    {
        WriteUnlock(&ThunkLock);
        ERR("Realloc failed to increase to %u entries!\n", ThunkArraySize*2);
        return AL_OUT_OF_MEMORY;
    }
    memcpy(NewList, ThunkArray, ThunkArraySize*sizeof(*ThunkArray));
    al_free(ThunkArray);
    ThunkArray = NewList;
    ThunkArraySize *= 2;

    ATOMIC_STORE_SEQ(&ThunkArray[i], AL_TRUE);
    WriteUnlock(&ThunkLock);

    *index = i+1;
    return AL_NO_ERROR;
}

Example #4

AL_API void AL_APIENTRY alBufferi(ALuint buffer, ALenum param, ALint value)
{
    ALCdevice *device;
    ALCcontext *context;
    ALbuffer *albuf;

    context = GetContextRef();
    if(!context) return;

    device = context->Device;
    LockBuffersRead(device);
    if((albuf=LookupBuffer(device, buffer)) == NULL)
        SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done);

    switch(param)
    {
    case AL_UNPACK_BLOCK_ALIGNMENT_SOFT:
        if(!(value >= 0))
            SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
        ATOMIC_STORE_SEQ(&albuf->UnpackAlign, value);
        break;

    case AL_PACK_BLOCK_ALIGNMENT_SOFT:
        if(!(value >= 0))
            SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
        ATOMIC_STORE_SEQ(&albuf->PackAlign, value);
        break;

    default:
        SET_ERROR_AND_GOTO(context, AL_INVALID_ENUM, done);
    }

done:
    UnlockBuffersRead(device);
    ALCcontext_DecRef(context);
}