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1 /*
2  * libkmod - interface to kernel module operations
3  *
4  * Copyright (C) 2011-2013  ProFUSION embedded systems
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #pragma once
21 
22 #include <inttypes.h>
23 
24 struct index_value {
25 	struct index_value *next;
26 	unsigned int priority;
27 	unsigned int len;
28 	char value[0];
29 };
30 
31 /* In-memory index (depmod only) */
32 struct index_file;
33 struct index_file *index_file_open(const char *filename);
34 void index_file_close(struct index_file *idx);
35 char *index_search(struct index_file *idx, const char *key);
36 void index_dump(struct index_file *in, int fd, const char *prefix);
37 struct index_value *index_searchwild(struct index_file *idx, const char *key);
38 
39 void index_values_free(struct index_value *values);
40 
41 /* Implementation using mmap */
42 struct index_mm;
43 struct index_mm *index_mm_open(struct kmod_ctx *ctx, const char *filename,
44 						unsigned long long *stamp);
45 void index_mm_close(struct index_mm *index);
46 char *index_mm_search(struct index_mm *idx, const char *key);
47 struct index_value *index_mm_searchwild(struct index_mm *idx, const char *key);
48 void index_mm_dump(struct index_mm *idx, int fd, const char *prefix);
49