From 13e10daa330ea2b699c9aa9d14b3adbd01111fd6 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Wed, 10 Jun 2009 05:40:52 +0800 Subject: move openbsc into its own subdirectory --- openbsc/src/msgb.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 openbsc/src/msgb.c (limited to 'openbsc/src/msgb.c') diff --git a/openbsc/src/msgb.c b/openbsc/src/msgb.c new file mode 100644 index 000000000..ce390e84a --- /dev/null +++ b/openbsc/src/msgb.c @@ -0,0 +1,70 @@ +/* (C) 2008 by Harald Welte + * 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 +#include +#include +#include + +#include + +struct msgb *msgb_alloc(u_int16_t size) +{ + struct msgb *msg = malloc(sizeof(*msg) + size); + + if (!msg) + return NULL; + memset(msg, 0, sizeof(*msg)+size); + + msg->data_len = size; + msg->len = 0; + msg->data = msg->_data; + + msg->head = msg->data; + msg->data = msg->data; + /* reset tail pointer */ + msg->tail = msg->data; + //msg->end = msg->tail + size; + + return msg; +} + +void msgb_free(struct msgb *m) +{ + 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); +} -- cgit v1.2.3