size_t data_len);
+/**
+ * Extend metadata. Merges the meta data from the second argument
+ * into the first, discarding duplicate key-value pairs.
+ *
+ * @param md metadata to extend
+ * @param in metadata to merge
+ */
+void
+GNUNET_CONTAINER_meta_data_merge (struct GNUNET_CONTAINER_MetaData *md,
+ const struct GNUNET_CONTAINER_MetaData *in);
+
+
/**
* Remove an item.
*
size_t data_len);
+/**
+ * Remove all items in the container.
+ *
+ * @param md metadata to manipulate
+ */
+void
+GNUNET_CONTAINER_meta_data_clear (struct GNUNET_CONTAINER_MetaData *md);
+
+
/**
* Add the current time as the publication date
* to the meta-data.
GNUNET_CONTAINER_MetaData
*md, unsigned char **thumb);
-/**
- * Extract meta-data from a file.
- *
- * @param md metadata to set
- * @param filename name of file to inspect
- * @param extractors plugins to use
- * @return GNUNET_SYSERR on error, otherwise the number
- * of meta-data items obtained
- */
-int
-GNUNET_CONTAINER_meta_data_extract_from_file (struct
- GNUNET_CONTAINER_MetaData
- *md, const char *filename,
- struct EXTRACTOR_PluginList *
- extractors);
/**
*GNUNET_CONTAINER_meta_data_deserialize (const char *input,
size_t size);
-/**
- * Does the meta-data claim that this is a directory?
- * Checks if the mime-type is that of a GNUnet directory.
- *
- * @param md metadata to inspect
- * @return GNUNET_YES if it is, GNUNET_NO if it is not, GNUNET_SYSERR if
- * we have no mime-type information (treat as 'GNUNET_NO')
- */
-int GNUNET_CONTAINER_meta_data_test_for_directory (const struct
- GNUNET_CONTAINER_MetaData
- *md);
-
/* ******************************* HashMap **************************** */