diff options
Diffstat (limited to 'src/shared/libosmocore/src/msgb.c')
| -rw-r--r-- | src/shared/libosmocore/src/msgb.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/src/shared/libosmocore/src/msgb.c b/src/shared/libosmocore/src/msgb.c deleted file mode 100644 index c8564dbb..00000000 --- a/src/shared/libosmocore/src/msgb.c +++ /dev/null @@ -1,156 +0,0 @@ -/* (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. - * - */ - -/*! \addtogroup msgb - * @{ - */ - -/*! \file msgb.c - */ - -#include <unistd.h> -#include <string.h> -#include <stdlib.h> - -#include <osmocom/core/msgb.h> -//#include <openbsc/gsm_data.h> -#include <osmocom/core/talloc.h> -//#include <openbsc/debug.h> - -void *tall_msgb_ctx; - -/*! \brief Allocate a new message buffer - * \param[in] size Length in octets, including headroom - * \param[in] name Human-readable name to be associated with msgb - * - * This function allocates a 'struct msgb' as well as the underlying - * memory buffer for the actual message data (size specified by \a size) - * using the talloc memory context previously set by \ref msgb_set_talloc_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; -} - -/*! \brief Release given message buffer - * \param[in] m Message buffer to be free'd - */ -void msgb_free(struct msgb *m) -{ - talloc_free(m); -} - -/*! \brief Enqueue message buffer to tail of a queue - * \param[in] queue linked list header of queue - * \param[in] msgb message buffer to be added to the queue - * - * The function will append the specified message buffer \a msg to the - * queue implemented by \ref llist_head \a queue - */ -void msgb_enqueue(struct llist_head *queue, struct msgb *msg) -{ - llist_add_tail(&msg->list, queue); -} - -/*! \brief Dequeue message buffer from head of queue - * \param[in] queue linked list header of queue - * \returns message buffer (if any) or NULL if queue empty - * - * The function will remove the first message buffer from the queue - * implemented by 'ref llist_head \a 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); -} - -/*! \brief Re-set all message buffer pointers - * \param[in] m message buffer that is to be resetted - * - * This will re-set the various internal pointers into the underlying - * message buffer, i.e. remvoe all headroom and treat the msgb as - * completely empty. It also initializes the control buffer to zero. - */ -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)); -} - -/*! \brief get pointer to data section of message buffer - * \param[in] msg message buffer - * \returns pointer to data section of message buffer - */ -uint8_t *msgb_data(const struct msgb *msg) -{ - return msg->data; -} - -/*! \brief get length of message buffer - * \param[in] msg message buffer - * \returns length of data section in message buffer - */ -uint16_t msgb_length(const struct msgb *msg) -{ - return msg->len; -} - -/*! \brief Set the talloc context for \ref msgb_alloc - * \param[in] ctx talloc context to be used as root for msgb allocations - */ -void msgb_set_talloc_ctx(void *ctx) -{ - tall_msgb_ctx = ctx; -} - -/*! @} */ |