125 lines
3.0 KiB
C
125 lines
3.0 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Jonathan Rose <jrose@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Call Parking Device State Management
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*
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* \author Jonathan Rose <jrose@digium.com>
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*/
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#include "asterisk.h"
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#include "asterisk/logger.h"
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#include "res_parking.h"
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#include "asterisk/devicestate.h"
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struct parking_lot_extension_inuse_search {
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char *context;
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int exten;
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};
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static int retrieve_parked_user_targeted(void *obj, void *arg, int flags)
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{
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int *target = arg;
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struct parked_user *user = obj;
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if (user->parking_space == *target) {
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return CMP_MATCH;
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}
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return 0;
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}
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static int parking_lot_search_context_extension_inuse(void *obj, void *arg, int flags)
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{
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struct parking_lot *lot = obj;
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struct parking_lot_extension_inuse_search *search = arg;
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RAII_VAR(struct parked_user *, user, NULL, ao2_cleanup);
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if (strcmp(lot->cfg->parking_con, search->context)) {
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return 0;
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}
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if ((search->exten < lot->cfg->parking_start) || (search->exten > lot->cfg->parking_stop)) {
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return 0;
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}
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user = ao2_callback(lot->parked_users, 0, retrieve_parked_user_targeted, &search->exten);
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if (!user) {
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return 0;
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}
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ao2_lock(user);
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if (user->resolution != PARK_UNSET) {
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/* The parked user isn't in an answerable state. */
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ao2_unlock(user);
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return 0;
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}
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ao2_unlock(user);
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return CMP_MATCH;
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}
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static enum ast_device_state metermaidstate(const char *data)
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{
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struct ao2_container *global_lots = get_parking_lot_container();
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RAII_VAR(struct parking_lot *, lot, NULL, ao2_cleanup);
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char *context;
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char *exten;
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struct parking_lot_extension_inuse_search search = {};
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context = ast_strdupa(data);
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exten = strsep(&context, "@");
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if (ast_strlen_zero(context) || ast_strlen_zero(exten)) {
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return AST_DEVICE_INVALID;
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}
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search.context = context;
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if (sscanf(exten, "%d", &search.exten) != 1) {
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return AST_DEVICE_INVALID;
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}
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ast_debug(4, "Checking state of exten %d in context %s\n", search.exten, context);
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lot = ao2_callback(global_lots, 0, parking_lot_search_context_extension_inuse, &data);
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if (!lot) {
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return AST_DEVICE_NOT_INUSE;
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}
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return AST_DEVICE_INUSE;
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}
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void parking_notify_metermaids(int exten, const char *context, enum ast_device_state state)
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{
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ast_debug(4, "Notification of state change to metermaids %d@%s\n to state '%s'\n",
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exten, context, ast_devstate2str(state));
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ast_devstate_changed(state, AST_DEVSTATE_CACHABLE, "park:%d@%s", exten, context);
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}
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void unload_parking_devstate(void)
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{
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ast_devstate_prov_del("Park");
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}
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int load_parking_devstate(void)
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{
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return ast_devstate_prov_add("Park", metermaidstate);
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}
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