1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #ifndef _INIT_PROPERTY_H
18 #define _INIT_PROPERTY_H
19
20 #include <stddef.h>
21 #include <sys/system_properties.h>
22
23 extern void property_init(void);
24 extern void property_load_boot_defaults(void);
25 extern void load_persist_props(void);
26 extern void load_all_props(void);
27 extern void start_property_service(void);
28 void get_property_workspace(int *fd, int *sz);
29 extern int __property_get(const char *name, char *value);
30 extern int property_set(const char *name, const char *value);
31 extern bool properties_initialized();
32
33 #ifndef __clang__
34 extern void __property_get_size_error()
35 __attribute__((__error__("property_get called with too small buffer")));
36 #else
37 extern void __property_get_size_error();
38 #endif
39
40 static inline
41 __attribute__ ((always_inline))
42 __attribute__ ((gnu_inline))
43 #ifndef __clang__
44 __attribute__ ((artificial))
45 #endif
property_get(const char * name,char * value)46 int property_get(const char *name, char *value)
47 {
48 size_t value_len = __builtin_object_size(value, 0);
49 if (value_len != PROP_VALUE_MAX)
50 __property_get_size_error();
51
52 return __property_get(name, value);
53 }
54
55 #endif /* _INIT_PROPERTY_H */
56