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	(issue ASTERISK-21645) Reported by: Matt Jordan Review: https://reviewboard.asterisk.org/r/2545/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@390920 65c4cc65-6c06-0410-ace0-fbb531ad65f3
		
			
				
	
	
		
			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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	return 0;
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| }
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	return CMP_MATCH;
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| }
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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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| 
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| 	context = ast_strdupa(data);
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| 
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| 	exten = strsep(&context, "@");
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| 
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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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| 
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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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| 
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| 	ast_debug(4, "Checking state of exten %d in context %s\n", search.exten, context);
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| 
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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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| 
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| 	return AST_DEVICE_INUSE;
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| }
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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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| 
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| 	ast_devstate_changed(state, AST_DEVSTATE_CACHABLE, "park:%d@%s", exten, context);
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| }
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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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| 
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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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