void snd_midi_event_reset_encode(snd_midi_event_t *dev)
{
unsigned long flags;
spin_lock_irqsave(&dev->lock, flags);
reset_encode(dev);
spin_unlock_irqrestore(&dev->lock, flags);
}
/**
* \brief Resizes the MIDI message encoding buffer.
* \param dev MIDI event parser.
* \param bufsize The new buffer size.
* \return Zero on success, otherwise a negative error code.
*
* This function resizes the buffer that is used to hold partially encoded MIDI
* messages.
*
* If there is a partially encoded message in the buffer, it is dropped.
*
* \par Errors:
* <dl>
* <dt>-ENOMEM<dd>Out of memory.
*
* \sa snd_midi_event_encode, snd_midi_event_reset_encode
*/
int snd_midi_event_resize_buffer(snd_midi_event_t *dev, size_t bufsize)
{
unsigned char *new_buf, *old_buf;
if (bufsize == dev->bufsize)
return 0;
new_buf = malloc(bufsize);
if (new_buf == NULL)
return -ENOMEM;
old_buf = dev->buf;
dev->buf = new_buf;
dev->bufsize = bufsize;
reset_encode(dev);
free(old_buf);
return 0;
}
/*
* resize buffer
*/
int snd_midi_event_resize_buffer(snd_midi_event_t *dev, int bufsize)
{
unsigned char *new_buf, *old_buf;
unsigned long flags;
if (bufsize == dev->bufsize)
return 0;
new_buf = kmalloc(bufsize, GFP_KERNEL);
if (new_buf == NULL)
return -ENOMEM;
spin_lock_irqsave(&dev->lock, flags);
old_buf = dev->buf;
dev->buf = new_buf;
dev->bufsize = bufsize;
reset_encode(dev);
spin_unlock_irqrestore(&dev->lock, flags);
kfree(old_buf);
return 0;
}
/**
* \brief Reset MIDI encode parser
* \param dev MIDI event parser
* \return 0 on success otherwise a negative error code
*
* Resets MIDI encode parser
*/
void snd_midi_event_reset_encode(snd_midi_event_t *dev)
{
reset_encode(dev);
}
