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      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 
     14 struct lnstat_file;
     15 
     16 struct 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 
     24 struct 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 
     37 struct lnstat_file *lnstat_scan_dir(const char *path, const int num_req_files,
     38 				    const char **req_files);
     39 int lnstat_update(struct lnstat_file *lnstat_files);
     40 int lnstat_dump(FILE *outfd, struct lnstat_file *lnstat_files);
     41 struct lnstat_field *lnstat_find_field(struct lnstat_file *lnstat_files,
     42 				       const char *name);
     43 #endif /* _LNSTAT_H */
     44