misc/lnstat.h

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