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