/*
*===========================================================================
* ipcom_buffer_end_ptr
*===========================================================================
* Description: Returns a pointer to the first free byte in the buffer.
* Parameters:
* Returns:
*
*/
IP_PUBLIC Ip_u8 *
ipcom_buffer_end_ptr(Ipcom_buffer *buffer)
{
IPCOM_LOG3(DEBUG2,
"ipcom_buffer_write_ptr :: buf=%x, end=%d, offset=%d",
buffer, buffer->end, buffer->offset);
return &(buffer->buf[buffer->end]);
}
/*
*===========================================================================
* ipcom_buffer_start_ptr
*===========================================================================
* Description: Returns a pointer to the first used byte in the buffer.
* Parameters:
* Returns:
*
*/
IP_PUBLIC Ip_u8 *
ipcom_buffer_start_ptr(Ipcom_buffer *buffer)
{
IPCOM_LOG3(DEBUG2,
"ipcom_buffer_ptr :: buf=%x, end=%d, offset=%d",
buffer, buffer->end, buffer->offset);
return buffer->buf + buffer->offset;
}
/*
*===========================================================================
* ipnet_pkt_queue_mbc_remove
*===========================================================================
* Description: Removes an queue from a container queue and put pack a
* default queue type.
* Parameters: c - The MBC parent queue for 'q'.
* q - The queue to remove.
* Returns: 0 = success, <0 = error code (-IP_ERRNO_xxx)
*
*/
IP_STATIC int
ipnet_pkt_queue_mbc_remove(Ipnet_pkt_queue_mbc *c, Ipnet_pkt_queue *q)
{
Ip_u32 band;
ip_assert(c->hdr.id == q->parent_id);
for (band = 0; band < c->number_of_bands; band++)
{
if (q == c->bands[band])
{
int ret = ipnet_pkt_queue_mbc_insert_default_queue(c, band);
if (ret < 0)
IPCOM_LOG3(WARNING, "MBC: Failed to replace %s:%d with a fifo in remove(): %s",
q->type, q->id, ipcom_strerror(-ret));
return ret;
}
}
return -IP_ERRNO_ESRCH;
}
/*
*===========================================================================
* ipcom_buffer_trim
*===========================================================================
* Description:
* Parameters:
* Returns:
*
*/
IP_PUBLIC void
ipcom_buffer_trim(Ipcom_buffer *buffer)
{
IPCOM_LOG3(DEBUG2,
"ipcom_buffer_trim :: buf=%x, offset=%d, end=%d",
buffer, buffer->offset, buffer->end);
if(buffer->end == buffer->offset)
{
buffer->end = 0;
buffer->offset = 0;
return;
}
/* If more than the first half of the buffer is free/unused, move the
* data to the beginning of the buffer */
if(buffer->offset > buffer->alloc/2)
{
ipcom_memmove(buffer->buf, buffer->buf + buffer->offset, buffer->end - buffer->offset);
buffer->end -= buffer->offset;
buffer->offset = 0;
}
}
/*
*===========================================================================
* ipnet_pkt_queue_mbc_get
*===========================================================================
* Description: Returns the queue that matches the specified ID.
* Parameters: q - A MBC packet queue.
* id - The ID of the contained queue.
* Returns: A pointer to the queue or IP_NULL if it was not found.
*
*/
IP_STATIC struct Ipnet_pkt_queue_struct *
ipnet_pkt_queue_mbc_get(Ipnet_pkt_queue_mbc *q, int id)
{
Ip_u32 band;
Ipnet_pkt_queue *c;
if (q->hdr.id == id)
return &q->hdr;
for (band = 0; band < q->number_of_bands; band++)
{
c = q->bands[band];
if (c)
{
if (c->id == id)
return c;
if (c->c_ops && IP_NULL != (c = c->c_ops->q_get(c, id)))
return c;
}
}
IPCOM_LOG3(DEBUG2, "MBC: Did not find %d queue inside %s:%d",
id, q->hdr.type, q->hdr.id);
return IP_NULL;
}
