63 lines
2 KiB
C
63 lines
2 KiB
C
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/*
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* Copyright (c) 2022 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef LWM2M_OBSERVATION_H
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#define LWM2M_OBSERVATION_H
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#include "lwm2m_object.h"
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int lwm2m_notify_observer(uint16_t obj_id, uint16_t obj_inst_id, uint16_t res_id);
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int lwm2m_notify_observer_path(struct lwm2m_obj_path *path);
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#define MAX_TOKEN_LEN 8
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struct observe_node {
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sys_snode_t node;
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sys_slist_t path_list; /* List of Observation path */
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uint8_t token[MAX_TOKEN_LEN]; /* Observation Token */
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int64_t event_timestamp; /* Timestamp for trig next Notify */
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int64_t last_timestamp; /* Timestamp from last Notify */
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uint32_t counter;
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uint16_t format;
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uint8_t tkl;
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bool resource_update : 1; /* Resource is updated */
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bool composite : 1; /* Composite Observation */
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bool active_tx_operation : 1; /* Active Notification process ongoing */
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};
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/* Attribute handling. */
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struct lwm2m_attr *lwm2m_engine_get_next_attr(const void *ref,
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struct lwm2m_attr *prev);
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const char *lwm2m_engine_get_attr_name(const struct lwm2m_attr *attr);
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void clear_attrs(void *ref);
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/**/
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int64_t engine_observe_shedule_next_event(struct observe_node *obs, uint16_t srv_obj_inst,
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const int64_t timestamp);
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void remove_observer_from_list(struct lwm2m_ctx *ctx, sys_snode_t *prev_node,
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struct observe_node *obs);
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struct observe_node *engine_observe_node_discover(sys_slist_t *observe_node_list,
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sys_snode_t **prev_node,
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sys_slist_t *lwm2m_path_list,
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const uint8_t *token, uint8_t tkl);
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int engine_remove_observer_by_token(struct lwm2m_ctx *ctx, const uint8_t *token, uint8_t tkl);
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int lwm2m_write_attr_handler(struct lwm2m_engine_obj *obj,
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struct lwm2m_message *msg);
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int lwm2m_engine_observation_handler(struct lwm2m_message *msg, int observe, uint16_t accept,
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bool composite);
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void engine_remove_observer_by_id(uint16_t obj_id, int32_t obj_inst_id);
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/* Resources */
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sys_slist_t *lwm2m_obs_obj_path_list(void);
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#endif /* LWM2M_OBSERVATION_H */
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