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 "core/time.h"
34 #include "utils/llist.h"
36 #include <stdio.h>
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
42 extern const sdb_type_t sdb_host_type;
43 extern const sdb_type_t sdb_attribute_type;
44 extern const sdb_type_t sdb_service_type;
46 typedef struct {
47 sdb_object_t super;
48 sdb_time_t last_update;
49 } sdb_store_obj_t;
50 #define SDB_STORE_OBJ_INIT(t) { SDB_OBJECT_TYPED_INIT(t), 0 }
51 #define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
52 #define SDB_CONST_STORE_OBJ(obj) ((const sdb_store_obj_t *)(obj))
54 typedef struct {
55 sdb_store_obj_t super;
57 char *hostname;
58 } sdb_service_t;
59 #define SDB_SVC_INIT { SDB_STORE_OBJ_INIT(sdb_service_type), NULL }
60 #define SDB_SVC(obj) ((sdb_service_t *)(obj))
61 #define SDB_CONST_SVC(obj) ((const sdb_service_t *)(obj))
63 typedef struct {
64 sdb_store_obj_t super;
66 char *attr_value;
67 char *hostname;
68 } sdb_attribute_t;
69 #define SDB_ATTR_INIT { SDB_STORE_OBJ_INIT(sdb_attribute_type), NULL, NULL }
70 #define SDB_ATTR(obj) ((sdb_attribute_t *)(obj))
71 #define SDB_CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
73 typedef struct {
74 sdb_store_obj_t super;
76 sdb_llist_t *attributes;
77 sdb_llist_t *services;
78 } sdb_host_t;
79 #define SDB_HOST_INIT { SDB_STORE_OBJ_INIT(sdb_host_type), NULL, NULL }
80 #define SDB_HOST(obj) ((sdb_host_t *)(obj))
81 #define SDB_CONST_HOST(obj) ((const sdb_host_t *)(obj))
83 /* shortcuts for accessing the sdb_store_obj_t attributes of inheriting
84 * objects */
85 #define _last_update super.last_update
87 /*
88 * sdb_store_host:
89 * Add/update a host in the store. If the host, identified by its
90 * canonicalized name, already exists, it will be updated according to the
91 * specified name and timestamp. Else, a new entry will be created in the
92 * store. Any memory required for storing the entry will be allocated an
93 * managed by the store itself.
94 *
95 * Returns:
96 * - 0 on success
97 * - a positive value if the new entry is older than the currently stored
98 * entry (in this case, no update will happen)
99 * - a negative value on error
100 */
101 int
102 sdb_store_host(const char *name, sdb_time_t last_update);
104 _Bool
105 sdb_store_has_host(const char *name);
107 /*
108 * sdb_store_attribute:
109 * Add/update a host's attribute in the store. If the attribute, identified by
110 * its name, already exists for the specified host, it will be updated
111 * according to the specified 'attr' object. If the referenced host does not
112 * exist, an error will be reported. Else, a new entry will be created in the
113 * store. Any memory required for storing the entry will be allocated and
114 * managed by the store itself. The specified attribute-object will not be
115 * referenced or further accessed.
116 *
117 * Returns:
118 * - 0 on success
119 * - a positive value if the new entry is older than the currently stored
120 * entry (in this case, no update will happen)
121 * - a negative value on error
122 */
123 int
124 sdb_store_attribute(const sdb_attribute_t *attr);
126 sdb_service_t *
127 sdb_service_create(const char *hostname, const char *name);
129 /*
130 * sdb_store_service:
131 * Add/update a store in the store. If the service, identified by its name,
132 * already exists for the specified host, it will be updated according to the
133 * specified 'service' object. If the referenced host does not exist, an error
134 * will be reported. Else, a new entry will be created in the store. Any
135 * memory required for storing the entry will be allocated an managed by the
136 * store itself. The specified service-object will not be referenced or
137 * further accessed.
138 *
139 * Returns:
140 * - 0 on success
141 * - a positive value if the new entry is older than the currently stored
142 * entry (in this case, no update will happen)
143 * - a negative value on error
144 */
145 int
146 sdb_store_service(const sdb_service_t *svc);
148 const sdb_service_t *
149 sdb_store_get_service(const sdb_host_t *host, const char *name);
151 int
152 sdb_store_dump(FILE *fh);
154 #ifdef __cplusplus
155 } /* extern "C" */
156 #endif
158 #endif /* ! SDB_CORE_STORE_H */
160 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */