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bacnet-stack/include/rp.h
2017-04-04 23:25:49 +02:00

138 lines
4.5 KiB
C

/**************************************************************************
*
* Copyright (C) 2012 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*********************************************************************/
#ifndef READPROPERTY_H
#define READPROPERTY_H
#include <stdint.h>
#include <stdbool.h>
#include "bacdef.h"
#include "bacenum.h"
typedef struct BACnet_Read_Property_Data {
BACNET_OBJECT_TYPE object_type;
uint32_t object_instance;
BACNET_PROPERTY_ID object_property;
uint32_t array_index;
uint8_t *application_data;
int application_data_len;
BACNET_ERROR_CLASS error_class;
BACNET_ERROR_CODE error_code;
} BACNET_READ_PROPERTY_DATA;
/* Forward declaration of RPM-style data structure */
struct BACnet_Read_Access_Data;
/** Reads one property for this object type of a given instance.
* A function template; @see device.c for assignment to object types.
* @ingroup ObjHelpers
*
* @param rp_data [in] Pointer to the BACnet_Read_Property_Data structure,
* which is packed with the information from the RP request.
* @return The length of the apdu encoded or -1 for error or
* -2 for abort message.
*/
typedef int (
*read_property_function) (
BACNET_READ_PROPERTY_DATA * rp_data);
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* encode service */
int rp_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata);
/* decode the service request only */
int rp_decode_service_request(
uint8_t * apdu,
unsigned apdu_len,
BACNET_READ_PROPERTY_DATA * rpdata);
/* method to encode the ack without extra buffer */
int rp_ack_encode_apdu_init(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata);
int rp_ack_encode_apdu_object_property_end(
uint8_t * apdu);
/* method to encode the ack using extra buffer */
int rp_ack_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata);
int rp_ack_decode_service_request(
uint8_t * apdu,
int apdu_len, /* total length of the apdu */
BACNET_READ_PROPERTY_DATA * rpdata);
/* Decode instead to RPM-style data structure. */
int rp_ack_fully_decode_service_request(
uint8_t * apdu,
int apdu_len,
struct BACnet_Read_Access_Data *read_access_data);
#ifdef TEST
#include "ctest.h"
int rp_decode_apdu(
uint8_t * apdu,
unsigned apdu_len,
uint8_t * invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata);
int rp_ack_decode_apdu(
uint8_t * apdu,
int apdu_len, /* total length of the apdu */
uint8_t * invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata);
void test_ReadProperty(
Test * pTest);
void test_ReadPropertyAck(
Test * pTest);
#endif
#ifdef __cplusplus
}
#endif /* __cplusplus */
/** @defgroup DataShare Data Sharing BIBBs
* These BIBBs prescribe the BACnet capabilities required to interoperably
* perform the data sharing functions enumerated in 22.2.1.1 for the BACnet
* devices defined therein.
*/
/** @defgroup DSRP Data Sharing -Read Property Service (DS-RP)
* @ingroup DataShare
* 15.5 ReadProperty Service <br>
* The ReadProperty service is used by a client BACnet-user to request the
* value of one property of one BACnet Object. This service allows read access
* to any property of any object, whether a BACnet-defined object or not.
*/
#endif