1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/* Portable file-based implementation of LV2 Persist.
* See <http://lv2plug.in/ns/ext/persist> for details.
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This file is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this file; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdbool.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _LV2PFile* LV2PFile;
typedef struct _LV2PFile_Iterator* LV2PFile_Iterator;
typedef enum {
LV2_PFILE_OK = 0,
LV2_PFILE_UNKNOWN_ERROR = 1,
LV2_PFILE_EOF = 2,
LV2_PFILE_CORRUPT = 3
} LV2PFileStatus;
/** Open/Create a new persist file. */
LV2PFile
lv2_pfile_open(const char* path, bool write);
/** Write a record to a persist file. */
LV2PFileStatus
lv2_pfile_write(LV2PFile file,
const char* key,
const void* value,
uint64_t size,
const char* type);
/** Read a record from a persist file.
* @a key and @a value are allocated with malloc and must be freed by caller.
*/
LV2PFileStatus
lv2_pfile_read(LV2PFile file,
char** key,
uint32_t* key_len,
char** type,
uint32_t* type_len,
void** value,
uint64_t* size);
/** Close a persist file.
* After this call, @a file is invalid.
*/
void
lv2_pfile_close(LV2PFile file);
#ifdef __cplusplus
} /* extern "C" */
#endif
|
