| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _LNSTAT_H |
| #define _LNSTAT_H |
| |
| #include <limits.h> |
| #include <sys/select.h> |
| |
| #define LNSTAT_VERSION "0.02 041002" |
| |
| #define PROC_NET_STAT "/proc/net/stat" |
| |
| #define LNSTAT_MAX_FILES 32 |
| #define LNSTAT_MAX_FIELDS_PER_LINE 32 |
| #define LNSTAT_MAX_FIELD_NAME_LEN 32 |
| |
| struct lnstat_file; |
| |
| struct lnstat_field { |
| struct lnstat_file *file; |
| unsigned int num; /* field number in line */ |
| char name[LNSTAT_MAX_FIELD_NAME_LEN+1]; |
| unsigned long values[2]; /* two buffers for values */ |
| unsigned long result; |
| }; |
| |
| struct lnstat_file { |
| struct lnstat_file *next; |
| char path[PATH_MAX+1]; |
| char basename[NAME_MAX+1]; |
| struct timeval last_read; /* last time of read */ |
| struct timeval interval; /* interval */ |
| int compat; /* 1 == backwards compat mode */ |
| FILE *fp; |
| unsigned int num_fields; /* number of fields */ |
| struct lnstat_field fields[LNSTAT_MAX_FIELDS_PER_LINE]; |
| }; |
| |
| |
| struct lnstat_file *lnstat_scan_dir(const char *path, const int num_req_files, |
| const char **req_files); |
| int lnstat_update(struct lnstat_file *lnstat_files); |
| int lnstat_dump(FILE *outfd, struct lnstat_file *lnstat_files); |
| struct lnstat_field *lnstat_find_field(struct lnstat_file *lnstat_files, |
| const char *name); |
| #endif /* _LNSTAT_H */ |