Contiki-NG
attribute.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2010, Swedish Institute of Computer Science
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 /**
31  * \file
32  * Definitions for attributes.
33  * \author
34  * Nicolas Tsiftes <nvt@sics.se>
35  */
36 
37 #ifndef ATTRIBUTE_H
38 #define ATTRIBUTE_H
39 
40 #include <stdint.h>
41 #include <stdlib.h>
42 
43 #include "lib/list.h"
44 
45 #include "db-options.h"
46 
47 typedef enum {
48  DOMAIN_UNSPECIFIED = 0,
49  DOMAIN_INT = 1,
50  DOMAIN_LONG = 2,
51  DOMAIN_STRING = 3,
52  DOMAIN_FLOAT = 4
53 } domain_t;
54 
55 #define ATTRIBUTE_FLAG_NO_STORE 0x1
56 #define ATTRIBUTE_FLAG_INVALID 0x2
57 #define ATTRIBUTE_FLAG_PRIMARY_KEY 0x4
58 #define ATTRIBUTE_FLAG_UNIQUE 0x8
59 
60 struct attribute {
61  struct attribute *next;
62  void *index;
63  long aggregation_value;
64  uint8_t aggregator;
65  uint8_t domain;
66  uint8_t element_size;
67  uint8_t flags;
68  char name[ATTRIBUTE_NAME_LENGTH + 1];
69 };
70 
71 typedef struct attribute attribute_t;
72 typedef uint8_t attribute_id_t;
73 
74 struct attribute_value {
75  union {
76  int int_value;
77  long long_value;
78  unsigned char *string_value;
79  } u;
80  domain_t domain;
81 };
82 
83 typedef struct attribute_value attribute_value_t;
84 
85 #define VALUE_LONG(value) (value)->u.long_value
86 #define VALUE_INT(value) (value)->u.int_value
87 #define VALUE_STRING(value) (value)->u.string_value
88 
89 #endif /* ATTRIBUTES_H */
Linked list manipulation routines.
Database configuration options.