1 files changed, 43 insertions, 0 deletions
diff --git a/misc/lnstat.h b/misc/lnstat.h
new file mode 100644
index 0000000..433599c
--- /dev/null
+++ b/misc/lnstat.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LNSTAT_H
+#define _LNSTAT_H
+
+#include <limits.h>
+#include <sys/select.h>
+
+#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 */