X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fcommon.h;h=d0cc4e829b59a2bf895248ac8bf7664b727e655e;hb=4027126a75439c7d2b1d5572092fd291ef19ead6;hp=d372872a30d135dd6743f6365b2b76f1f26b8013;hpb=98062438c25226e2e4a28ab629de5dfa27a79913;p=collectd.git

diff --git a/src/common.h b/src/common.h
index d372872a..d0cc4e82 100644
--- a/src/common.h
+++ b/src/common.h
@@ -98,7 +98,7 @@ ssize_t swrite (int fd, const void *buf, size_t count);
  *
  * DESCRIPTION
  *   Splits a string into parts and stores pointers to the parts in `fields'.
- *   The characters split at are ` ' (space) and "\t" (tab).
+ *   The characters split at are: " ", "\t", "\r", and "\n".
  *
  * PARAMETERS
  *   `string'      String to split. This string will be modified. `fields' will
@@ -158,10 +158,76 @@ int strjoin (char *dst, size_t dst_len, char **fields, size_t fields_num, const
  */
 int escape_slashes (char *buf, int buf_len);
 
+/*
+ * NAME
+ *   replace_special
+ *
+ * DESCRIPTION
+ *   Replaces any special characters (anything that's not alpha-numeric or a
+ *   dash) with an underscore.
+ *
+ *   E.g. "foo$bar&" would become "foo_bar_".
+ *
+ * PARAMETERS
+ *   `buffer'      String to be handled.
+ *   `buffer_size' Length of the string. The function returns after
+ *                 encountering a null-byte or reading this many bytes.
+ */
+void replace_special (char *buffer, size_t buffer_size);
+
 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
+ *   strunescape
+ *
+ * DESCRIPTION
+ *   Replaces any escaped characters in a string with the appropriate special
+ *   characters. The following escaped characters are recognized:
+ *
+ *     \t -> <tab>
+ *     \n -> <newline>
+ *     \r -> <carriage return>
+ *
+ *   For all other escacped characters only the backslash will be removed.
+ *
+ * PARAMETERS
+ *   `buf'         String to be unescaped.
+ *   `buf_len'     Length of the string, including the terminating null-byte.
+ *
+ * RETURN VALUE
+ *   Returns zero upon success, a value less than zero else.
+ */
+int strunescape (char *buf, size_t buf_len);
+
+/*
+ * 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)
+
+/* make sure tv_sec stores less than a second */
+#define NORMALIZE_TIMESPEC(tv) \
+	do { \
+		(tv).tv_sec += (tv).tv_nsec / 1000000000; \
+		(tv).tv_nsec = (tv).tv_nsec % 1000000000; \
+	} while (0)
 
 int check_create_dir (const char *file_orig);
 
@@ -194,6 +260,7 @@ int format_name (char *ret, int ret_len,
 int parse_identifier (char *str, char **ret_host,
 		char **ret_plugin, char **ret_plugin_instance,
 		char **ret_type, char **ret_type_instance);
+int parse_value (const char *value, value_t *ret_value, const data_source_t ds);
 int parse_values (char *buffer, value_list_t *vl, const data_set_t *ds);
 
 #if !HAVE_GETPWNAM_R