1 /*
2 * SysDB - src/include/core/store.h
3 * Copyright (C) 2012 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #ifndef SDB_CORE_STORE_H
29 #define SDB_CORE_STORE_H 1
31 #include "sysdb.h"
32 #include "core/object.h"
33 #include "utils/time.h"
34 #include "utils/llist.h"
36 #include <stdio.h>
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
42 typedef struct {
43 sdb_object_t parent;
45 sdb_time_t last_update;
46 char *name;
47 } sdb_store_obj_t;
48 #define SDB_STORE_OBJ_INIT { SDB_OBJECT_INIT, 0, NULL }
49 #define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
50 #define SDB_CONST_STORE_OBJ(obj) ((const sdb_store_obj_t *)(obj))
52 typedef struct {
53 sdb_store_obj_t parent;
55 char *hostname;
56 } sdb_service_t;
57 #define SDB_SVC_INIT { SDB_STORE_OBJ_INIT, NULL }
58 #define SDB_SVC(obj) ((sdb_service_t *)(obj))
59 #define SDB_CONST_SVC(obj) ((const sdb_service_t *)(obj))
61 typedef struct {
62 sdb_store_obj_t parent;
64 char *attr_value;
65 char *hostname;
66 } sdb_attribute_t;
67 #define SDB_ATTR_INIT { SDB_STORE_OBJ_INIT, NULL, NULL }
68 #define SDB_ATTR(obj) ((sdb_attribute_t *)(obj))
69 #define SDB_CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
71 typedef struct {
72 sdb_store_obj_t parent;
74 sdb_llist_t *attributes;
75 sdb_llist_t *services;
76 } sdb_host_t;
77 #define SDB_HOST_INIT { SDB_STORE_OBJ_INIT, NULL, NULL }
78 #define SDB_HOST(obj) ((sdb_host_t *)(obj))
79 #define SDB_CONST_HOST(obj) ((const sdb_host_t *)(obj))
81 /* shortcuts for accessing the sdb_store_obj_t attributes of inheriting
82 * objects */
83 #define _last_update parent.last_update
84 #define _name parent.name
86 sdb_host_t *
87 sdb_host_create(const char *name);
89 /*
90 * sdb_store_host:
91 * Add/update a host in the store. If the host, identified by its name,
92 * already exists, it will be updated according to the specified 'host'
93 * object. Else, a new entry will be created in the store. Any memory required
94 * for storing the entry will be allocated an managed by the store itself. The
95 * specified host-object will not be referenced or further accessed.
96 *
97 * Returns:
98 * - 0 on success
99 * - a positive value if the new entry is older than the currently stored
100 * entry (in this case, no update will happen)
101 * - a negative value on error
102 */
103 int
104 sdb_store_host(const sdb_host_t *host);
106 const sdb_host_t *
107 sdb_store_get_host(const char *name);
109 sdb_attribute_t *
110 sdb_attribute_create(const char *hostname,
111 const char *name, const char *value);
113 /*
114 * sdb_store_attribute:
115 * Add/update a host's attribute in the store. If the attribute, identified by
116 * its name, already exists for the specified host, it will be updated
117 * according to the specified 'attr' object. If the referenced host does not
118 * exist, an error will be reported. Else, a new entry will be created in the
119 * store. Any memory required for storing the entry will be allocated and
120 * managed by the store itself. The specified attribute-object will not be
121 * referenced or further accessed.
122 *
123 * Returns:
124 * - 0 on success
125 * - a positive value if the new entry is older than the currently stored
126 * entry (in this case, no update will happen)
127 * - a negative value on error
128 */
129 int
130 sdb_store_attribute(const sdb_attribute_t *attr);
132 sdb_service_t *
133 sdb_service_create(const char *hostname, const char *name);
135 /*
136 * sdb_store_service:
137 * Add/update a store in the store. If the service, identified by its name,
138 * already exists for the specified host, it will be updated according to the
139 * specified 'service' object. If the referenced host does not exist, an error
140 * will be reported. Else, a new entry will be created in the store. Any
141 * memory required for storing the entry will be allocated an managed by the
142 * store itself. The specified service-object will not be referenced or
143 * further accessed.
144 *
145 * Returns:
146 * - 0 on success
147 * - a positive value if the new entry is older than the currently stored
148 * entry (in this case, no update will happen)
149 * - a negative value on error
150 */
151 int
152 sdb_store_service(const sdb_service_t *svc);
154 const sdb_service_t *
155 sdb_store_get_service(const sdb_host_t *host, const char *name);
157 int
158 sdb_store_dump(FILE *fh);
160 #ifdef __cplusplus
161 } /* extern "C" */
162 #endif
164 #endif /* ! SDB_CORE_STORE_H */
166 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */