#define STATIC_ARRAY_SIZE(a) (sizeof (a) / sizeof (*(a)))
+#define IS_TRUE(s) ((strcasecmp ("true", (s)) == 0) \
+ || (strcasecmp ("yes", (s)) == 0) \
+ || (strcasecmp ("on", (s)) == 0))
+#define IS_FALSE(s) ((strcasecmp ("false", (s)) == 0) \
+ || (strcasecmp ("no", (s)) == 0) \
+ || (strcasecmp ("off", (s)) == 0))
+
char *sstrncpy (char *dest, const char *src, size_t n);
int ssnprintf (char *dest, size_t n, const char *format, ...);
char *sstrdup(const char *s);
int strsubstitute (char *str, char c_from, char c_to);
-/* FIXME: `timeval_sub_timespec' needs a description */
-int timeval_sub_timespec (struct timeval *tv0, struct timeval *tv1, struct timespec *ret);
+/*
+ * NAME
+ * timeval_cmp
+ *
+ * DESCRIPTION
+ * Compare the two time values `tv0' and `tv1' and store the absolut value
+ * of the difference in the time value pointed to by `delta' if it does not
+ * equal NULL.
+ *
+ * RETURN VALUE
+ * Returns an integer less than, equal to, or greater than zero if `tv0' is
+ * less than, equal to, or greater than `tv1' respectively.
+ */
+int timeval_cmp (struct timeval tv0, struct timeval tv1, struct timeval *delta);
+
+/* make sure tv_usec stores less than a second */
+#define NORMALIZE_TIMEVAL(tv) \
+ do { \
+ (tv).tv_sec += (tv).tv_usec / 1000000; \
+ (tv).tv_usec = (tv).tv_usec % 1000000; \
+ } while (0)
int check_create_dir (const char *file_orig);
(vl)->host, (vl)->plugin, (vl)->plugin_instance, \
(ds)->type, (vl)->type_instance)
-typedef int (*dirwalk_callback_f)(const char *filename);
-int walk_directory (const char *dir, dirwalk_callback_f callback);
+typedef int (*dirwalk_callback_f)(const char *dirname, const char *filename,
+ void *user_data);
+int walk_directory (const char *dir, dirwalk_callback_f callback,
+ void *user_data);
int read_file_contents (const char *filename, char *buf, int bufsize);
+counter_t counter_diff (counter_t old_value, counter_t new_value);
+
#endif /* COMMON_H */