1#ifndef _LNSTAT_H
2#define _LNSTAT_H
3
4#include <limits.h>
5
6#define LNSTAT_VERSION "0.02 041002"
7
8#define PROC_NET_STAT	"/proc/net/stat"
9
10#define LNSTAT_MAX_FILES			32
11#define LNSTAT_MAX_FIELDS_PER_LINE		32
12#define LNSTAT_MAX_FIELD_NAME_LEN		32
13
14struct lnstat_file;
15
16struct lnstat_field {
17	struct lnstat_file *file;
18	unsigned int num;			/* field number in line */
19	char name[LNSTAT_MAX_FIELD_NAME_LEN+1];
20	unsigned long values[2];		/* two buffers for values */
21	unsigned long result;
22};
23
24struct lnstat_file {
25	struct lnstat_file *next;
26	char path[PATH_MAX+1];
27	char basename[NAME_MAX+1];
28	struct timeval last_read;		/* last time of read */
29	struct timeval interval;		/* interval */
30	int compat;				/* 1 == backwards compat mode */
31	FILE *fp;
32	unsigned int num_fields;		/* number of fields */
33	struct lnstat_field fields[LNSTAT_MAX_FIELDS_PER_LINE];
34};
35
36
37struct lnstat_file *lnstat_scan_dir(const char *path, const int num_req_files,
38				    const char **req_files);
39int lnstat_update(struct lnstat_file *lnstat_files);
40int lnstat_dump(FILE *outfd, struct lnstat_file *lnstat_files);
41struct lnstat_field *lnstat_find_field(struct lnstat_file *lnstat_files,
42				       const char *name);
43#endif /* _LNSTAT_H */
44