coap_async_internal.h

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/*
 * coap_async_internal.h -- state management for asynchronous messages
 *
 * Copyright (C) 2010-2026 Olaf Bergmann <bergmann@tzi.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * This file is part of the CoAP library libcoap. Please see README for terms
 * of use.
 */

 
#ifndef COAP_ASYNC_INTERNAL_H_
#define COAP_ASYNC_INTERNAL_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Note that if COAP_SERVER_SUPPORT is not set, then COAP_ASYNC_SUPPORT undefined */
#if COAP_ASYNC_SUPPORT

struct coap_async_t {
  struct coap_async_t *next; 
  coap_tick_t delay;    
  coap_session_t *session;         
  coap_pdu_t *pdu;                 
  void *app_data;                   
  coap_app_data_free_callback_t app_cb; 
  coap_address_t local_if;         
};

coap_async_t *coap_register_async_lkd(coap_session_t *session,
                                      const coap_pdu_t *request,
                                      coap_tick_t delay);

int coap_check_async(coap_context_t *context, coap_tick_t now, coap_tick_t *tim_rem);

coap_async_t *coap_find_async_lkd(coap_session_t *session, coap_bin_const_t token);

void coap_async_trigger_lkd(coap_async_t *async);

void coap_async_set_delay_lkd(coap_async_t *async, coap_tick_t delay);

void *coap_async_set_app_data2_lkd(coap_async_t *async_entry,
                                   void *data,
                                   coap_app_data_free_callback_t callback);

void coap_free_async_lkd(coap_session_t *session, coap_async_t *async);

void coap_delete_all_async(coap_context_t *context);

 
#endif /* COAP_ASYNC_SUPPORT */
 
#ifdef __cplusplus
}
#endif
 
#endif /* COAP_ASYNC_INTERNAL_H_ */