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/* (C) 2008 by Harald Welte <laforge@gnumonks.org>
* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* All Rights Reserved
*
* This program is free software; you can 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 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <osmocore/msgb.h>
//#include <openbsc/gsm_data.h>
#include <osmocore/talloc.h>
//#include <openbsc/debug.h>
void *tall_msgb_ctx;
struct msgb *msgb_alloc(uint16_t size, const char *name)
{
struct msgb *msg;
msg = _talloc_zero(tall_msgb_ctx, sizeof(*msg) + size, name);
if (!msg) {
//LOGP(DRSL, LOGL_FATAL, "unable to allocate msgb\n");
return NULL;
}
msg->data_len = size;
msg->len = 0;
msg->data = msg->_data;
msg->head = msg->_data;
msg->tail = msg->_data;
return msg;
}
void msgb_free(struct msgb *m)
{
talloc_free(m);
}
void msgb_enqueue(struct llist_head *queue, struct msgb *msg)
{
llist_add_tail(&msg->list, queue);
}
struct msgb *msgb_dequeue(struct llist_head *queue)
{
struct llist_head *lh;
if (llist_empty(queue))
return NULL;
lh = queue->next;
llist_del(lh);
return llist_entry(lh, struct msgb, list);
}
void msgb_reset(struct msgb *msg)
{
msg->len = 0;
msg->data = msg->_data;
msg->head = msg->_data;
msg->tail = msg->_data;
msg->trx = NULL;
msg->lchan = NULL;
msg->l2h = NULL;
msg->l3h = NULL;
msg->l4h = NULL;
memset(&msg->cb, 0, sizeof(msg->cb));
}
uint8_t *msgb_data(const struct msgb *msg)
{
return msg->data;
}
uint16_t msgb_length(const struct msgb *msg)
{
return msg->len;
}
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