Steve Karg
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/**
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* @file
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* @author Steve Karg <skarg@users.sourceforge.net>
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* @date 2008
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* @brief A basic BACnet device object list management implementation
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* @copyright SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0
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*/
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "bacnet/basic/sys/keylist.h"
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#include "bacnet/basic/object/objects.h"
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/* list of devices */
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static OS_Keylist Device_List = NULL;
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void objects_init(void)
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{
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if (!Device_List) {
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Device_List = Keylist_Create();
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}
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}
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int objects_device_count(void)
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{
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objects_init();
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return Keylist_Count(Device_List);
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}
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uint32_t objects_device_id(int index)
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{
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uint32_t instance = UINT32_MAX;
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(void)Keylist_Index_Key(Device_List, index, &instance);
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return instance;
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}
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OBJECT_DEVICE_T *objects_device_data(int index)
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{
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objects_init();
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return Keylist_Data_Index(Device_List, index);
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}
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OBJECT_DEVICE_T *objects_device_by_instance(uint32_t device_instance)
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{
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objects_init();
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return Keylist_Data(Device_List, device_instance);
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}
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OBJECT_DEVICE_T *objects_device_new(uint32_t device_instance)
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{
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OBJECT_DEVICE_T *pDevice = NULL;
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KEY key = device_instance;
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int index;
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objects_init();
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if (Device_List) {
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/* does this device already exist? */
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pDevice = Keylist_Data(Device_List, key);
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if (pDevice) {
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memset(pDevice, 0, sizeof(OBJECT_DEVICE_T));
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} else {
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pDevice = calloc(1, sizeof(OBJECT_DEVICE_T));
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if (pDevice) {
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pDevice->Object_Identifier.type = OBJECT_DEVICE;
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pDevice->Object_Identifier.instance = device_instance;
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pDevice->Object_Type = OBJECT_DEVICE;
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index = Keylist_Data_Add(Device_List, key, pDevice);
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if (index < 0) {
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/* unable to add */
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free(pDevice);
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pDevice = NULL;
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} else {
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/* successfully added */
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pDevice->Object_List = Keylist_Create();
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}
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}
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}
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}
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return pDevice;
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}
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bool objects_device_delete(int index)
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{
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bool result = false;
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OBJECT_DEVICE_T *pDevice = NULL;
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BACNET_OBJECT_ID *pObject;
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objects_init();
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if (Device_List) {
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pDevice = Keylist_Data_Delete_By_Index(Device_List, index);
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if (pDevice) {
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if (pDevice->Object_List) {
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do {
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pObject =
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Keylist_Data_Delete_By_Index(pDevice->Object_List, 0);
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/* free any dynamic memory used */
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if (pObject) {
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free(pObject);
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}
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} while (pObject);
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Keylist_Delete(pDevice->Object_List);
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}
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free(pDevice);
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result = true;
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}
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}
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return result;
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}
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