Call Parking Device State Management. More...

#include "asterisk.h"
#include "asterisk/logger.h"
#include "res_parking.h"
#include "asterisk/devicestate.h"

Include dependency graph for parking_devicestate.c:

Data Structures
struct	parking_lot_extension_inuse_search

Functions
int	load_parking_devstate (void)
	Register Parking devstate handler.

static enum ast_device_state	metermaidstate (const char *data)

static int	parking_lot_search_context_extension_inuse (void obj, void arg, int flags)

void	parking_notify_metermaids (int exten, const char *context, enum ast_device_state state)
	Notify metermaids that we've changed an extension.

static int	retrieve_parked_user_targeted (void obj, void arg, int flags)

void	unload_parking_devstate (void)
	Unregister Parking devstate handler.

Detailed Description

Call Parking Device State Management.

Author: Jonathan Rose jrose.nosp@m.@dig.nosp@m.ium.c.nosp@m.om

Definition in file parking_devicestate.c.

Function Documentation

◆ load_parking_devstate()

int load_parking_devstate ( void )

Register Parking devstate handler.

Since: 12.0.0

Definition at line 121 of file parking_devicestate.c.

{
    return ast_devstate_prov_add("Park", metermaidstate);
}

References ast_devstate_prov_add(), and metermaidstate().

Referenced by load_module().

◆ metermaidstate()

static enum ast_device_state metermaidstate ( const char * data )

static

Definition at line 77 of file parking_devicestate.c.

{
    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;
}

References ao2_callback, ao2_cleanup, ast_debug, AST_DEVICE_INUSE, AST_DEVICE_INVALID, AST_DEVICE_NOT_INUSE, ast_strdupa, ast_strlen_zero(), parking_lot_extension_inuse_search::context, parking_lot_extension_inuse_search::exten, get_parking_lot_container(), NULL, parking_lot_search_context_extension_inuse(), RAII_VAR, and strsep().

Referenced by load_parking_devstate().

◆ parking_lot_search_context_extension_inuse()

static int parking_lot_search_context_extension_inuse	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 47 of file parking_devicestate.c.

{
    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;
}

References ao2_callback, ao2_cleanup, ao2_lock, ao2_unlock, parking_lot::cfg, CMP_MATCH, parking_lot_extension_inuse_search::context, parking_lot_extension_inuse_search::exten, NULL, PARK_UNSET, parking_lot::parked_users, parking_lot_cfg::parking_con, parking_lot_cfg::parking_start, parking_lot_cfg::parking_stop, RAII_VAR, and retrieve_parked_user_targeted().

Referenced by metermaidstate().

◆ parking_notify_metermaids()

void parking_notify_metermaids	(	int	exten,
		const char *	context,
		enum ast_device_state	state
	)

Notify metermaids that we've changed an extension.

Since: 12.0.0

Parameters

exten	Extension of the call parked/unparked
context	Context of the call parked/unparked
state	new device state

Definition at line 108 of file parking_devicestate.c.

{
    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);
}

References ast_debug, ast_devstate2str(), AST_DEVSTATE_CACHABLE, ast_devstate_changed(), parking_lot_extension_inuse_search::context, and parking_lot_extension_inuse_search::exten.

Referenced by bridge_parking_pull(), and bridge_parking_push().

◆ retrieve_parked_user_targeted()

static int retrieve_parked_user_targeted	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 36 of file parking_devicestate.c.

{
    int *target = arg;
    struct parked_user *user = obj;
    if (user->parking_space == *target) {
        return CMP_MATCH;
    }
 
    return 0;
}