94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2022 Nordic Semiconductor ASA
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
#ifndef LWM2M_OBSERVATION_H
|
|
#define LWM2M_OBSERVATION_H
|
|
#include "lwm2m_object.h"
|
|
|
|
int lwm2m_notify_observer(uint16_t obj_id, uint16_t obj_inst_id, uint16_t res_id);
|
|
int lwm2m_notify_observer_path(const struct lwm2m_obj_path *path);
|
|
|
|
#define MAX_TOKEN_LEN 8
|
|
|
|
struct observe_node {
|
|
sys_snode_t node;
|
|
sys_slist_t path_list; /* List of Observation path */
|
|
uint8_t token[MAX_TOKEN_LEN]; /* Observation Token */
|
|
int64_t event_timestamp; /* Timestamp for trig next Notify */
|
|
int64_t last_timestamp; /* Timestamp from last Notify */
|
|
struct lwm2m_message *active_notify; /* Currently active notification */
|
|
uint32_t counter;
|
|
uint16_t format;
|
|
uint8_t tkl;
|
|
bool resource_update : 1; /* Resource is updated */
|
|
bool composite : 1; /* Composite Observation */
|
|
};
|
|
/* Attribute handling. */
|
|
|
|
struct lwm2m_attr *lwm2m_engine_get_next_attr(const void *ref, struct lwm2m_attr *prev);
|
|
const char *lwm2m_engine_get_attr_name(const struct lwm2m_attr *attr);
|
|
|
|
const char *const lwm2m_attr_to_str(uint8_t type);
|
|
|
|
void clear_attrs(void *ref);
|
|
|
|
int64_t engine_observe_shedule_next_event(struct observe_node *obs, uint16_t srv_obj_inst,
|
|
const int64_t timestamp);
|
|
|
|
void remove_observer_from_list(struct lwm2m_ctx *ctx, sys_snode_t *prev_node,
|
|
struct observe_node *obs);
|
|
|
|
struct observe_node *engine_observe_node_discover(sys_slist_t *observe_node_list,
|
|
sys_snode_t **prev_node,
|
|
sys_slist_t *lwm2m_path_list,
|
|
const uint8_t *token, uint8_t tkl);
|
|
|
|
int engine_remove_observer_by_token(struct lwm2m_ctx *ctx, const uint8_t *token, uint8_t tkl);
|
|
|
|
int lwm2m_write_attr_handler(struct lwm2m_engine_obj *obj, struct lwm2m_message *msg);
|
|
|
|
int lwm2m_engine_observation_handler(struct lwm2m_message *msg, int observe, uint16_t accept,
|
|
bool composite);
|
|
|
|
void engine_remove_observer_by_id(uint16_t obj_id, int32_t obj_inst_id);
|
|
|
|
/* path object list */
|
|
struct lwm2m_obj_path_list {
|
|
sys_snode_t node;
|
|
struct lwm2m_obj_path path;
|
|
};
|
|
/* Initialize path list */
|
|
void lwm2m_engine_path_list_init(sys_slist_t *lwm2m_path_list, sys_slist_t *lwm2m_free_list,
|
|
struct lwm2m_obj_path_list path_object_buf[],
|
|
uint8_t path_object_size);
|
|
/**
|
|
* Add new path to the list while maintaining hierarchical sort order
|
|
*
|
|
* @param lwm2m_path_list sorted path list
|
|
* @param lwm2m_free_list free list
|
|
* @param path path to be added
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int lwm2m_engine_add_path_to_list(sys_slist_t *lwm2m_path_list, sys_slist_t *lwm2m_free_list,
|
|
const struct lwm2m_obj_path *path);
|
|
|
|
int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, const struct lwm2m_obj_path *path,
|
|
void **ref);
|
|
|
|
/**
|
|
* Remove paths when parent already exists in the list
|
|
*
|
|
* @note Path list must be sorted
|
|
* @see lwm2m_engine_add_path_to_list()
|
|
*
|
|
* @param lwm2m_path_list sorted path list
|
|
* @param lwm2m_free_list free list
|
|
*/
|
|
void lwm2m_engine_clear_duplicate_path(sys_slist_t *lwm2m_path_list, sys_slist_t *lwm2m_free_list);
|
|
|
|
/* Resources */
|
|
sys_slist_t *lwm2m_obs_obj_path_list(void);
|
|
#endif /* LWM2M_OBSERVATION_H */
|