81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* libgsmd event demultiplexer handler
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*
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* (C) 2006-2007 by OpenMoko, Inc.
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* Written by Harald Welte <laforge@openmoko.org>
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* All Rights Reserved
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <libgsmd/voicecall.h>
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#include <libgsmd/event.h>
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#include <gsmd/usock.h>
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#include <gsmd/event.h>
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#include "lgsm_internals.h"
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static lgsm_evt_handler *evt_handlers[__NUM_GSMD_EVT];
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int lgsm_evt_handler_register(struct lgsm_handle *lh, int evt_type,
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lgsm_evt_handler *handler)
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{
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if (evt_type >= __NUM_GSMD_EVT)
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return -EINVAL;
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evt_handlers[evt_type] = handler;
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return 0;
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}
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void lgsm_evt_handler_unregister(struct lgsm_handle *lh, int evt_type)
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{
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if (evt_type < __NUM_GSMD_EVT)
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evt_handlers[evt_type] = NULL;
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}
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static int evt_demux_msghandler(struct lgsm_handle *lh, struct gsmd_msg_hdr *gmh)
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{
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struct gsmd_evt_auxdata *aux = gmh->data;
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if (gmh->len < sizeof(*aux))
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return -EIO;
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if (gmh->msg_type != GSMD_MSG_EVENT ||
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gmh->msg_subtype >= __NUM_GSMD_EVT)
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return -EINVAL;
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if (evt_handlers[gmh->msg_subtype])
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return evt_handlers[gmh->msg_subtype](lh, gmh->msg_subtype, aux);
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else
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return 0;
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}
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int lgsm_evt_init(struct lgsm_handle *lh)
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{
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return lgsm_register_handler(lh, GSMD_MSG_EVENT, &evt_demux_msghandler);
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}
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void lgsm_evt_exit(struct lgsm_handle *lh)
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{
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lgsm_unregister_handler(lh, GSMD_MSG_EVENT);
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}
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