Zephyr API Documentation 4.1.99
A Scalable Open Source RTOS
 4.1.99
•All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Modules Pages
lwm2m_path.h
Go to the documentation of this file.
1/*
2 * Copyright (c) 2020 Endian Technologies AB
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7#ifndef ZEPHYR_INCLUDE_NET_LWM2M_PATH_H_
8#define ZEPHYR_INCLUDE_NET_LWM2M_PATH_H_
9
45#define LWM2M_PATH(...) \
46 LWM2M_PATH_MACRO(__VA_ARGS__, LWM2M_PATH4, LWM2M_PATH3, \
47 LWM2M_PATH2, LWM2M_PATH1)(__VA_ARGS__)
48
49
51/* Internal helper macros for the LWM2M_PATH macro */
52#define LWM2M_PATH_VA_NUM_ARGS(...) \
53 LWM2M_PATH_VA_NUM_ARGS_IMPL(__VA_ARGS__, 5, 4, 3, 2, 1)
54#define LWM2M_PATH_VA_NUM_ARGS_IMPL(_1, _2, _3, _4, N, ...) N
55
56#define LWM2M_PATH1(_x) #_x
57#define LWM2M_PATH2(_x, _y) #_x "/" #_y
58#define LWM2M_PATH3(_x, _y, _z) #_x "/" #_y "/" #_z
59#define LWM2M_PATH4(_a, _x, _y, _z) #_a "/" #_x "/" #_y "/" #_z
60
61#define LWM2M_PATH_MACRO(_1, _2, _3, _4, NAME, ...) NAME
83#define LWM2M_OBJ(...) \
84 GET_OBJ_MACRO(__VA_ARGS__, LWM2M_OBJ4, LWM2M_OBJ3, LWM2M_OBJ2, LWM2M_OBJ1)(__VA_ARGS__)
85
87/* Internal helper macros for the LWM2M_OBJ macro */
88#define GET_OBJ_MACRO(_1, _2, _3, _4, NAME, ...) NAME
89#define LWM2M_OBJ1(oi) (struct lwm2m_obj_path) {.obj_id = oi, .level = 1}
90#define LWM2M_OBJ2(oi, oii) (struct lwm2m_obj_path) {.obj_id = oi, .obj_inst_id = oii, .level = 2}
91#define LWM2M_OBJ3(oi, oii, ri) (struct lwm2m_obj_path) \
92 {.obj_id = oi, .obj_inst_id = oii, .res_id = ri, .level = 3}
93#define LWM2M_OBJ4(oi, oii, ri, rii) (struct lwm2m_obj_path) \
94 {.obj_id = oi, .obj_inst_id = oii, .res_id = ri, .res_inst_id = rii, .level = 4}
99#endif /* ZEPHYR_INCLUDE_NET_LWM2M_PATH_H_ */