X-Git-Url: https://git.mxchange.org/?p=core.git;a=blobdiff_plain;f=inc%2Fclasses%2Finterfaces%2Fio%2Fpointer%2Fio%2Fclass_InputOutputPointer.php;h=0cb98dd847801d3cb036a5701bb0d4192b2fe342;hp=6c2de09c78a1a8e49c6156b3d563e8ceca0036b8;hb=87ecc6be399bf88d83093105c667d3abfd6593de;hpb=0a638eea103f0f2b6c48374cb8d01e68893f5a65

diff --git a/inc/classes/interfaces/io/pointer/io/class_InputOutputPointer.php b/inc/classes/interfaces/io/pointer/io/class_InputOutputPointer.php
index 6c2de09c..0cb98dd8 100644
--- a/inc/classes/interfaces/io/pointer/io/class_InputOutputPointer.php
+++ b/inc/classes/interfaces/io/pointer/io/class_InputOutputPointer.php
@@ -22,6 +22,35 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 interface InputOutputPointer extends InputPointer, OutputPointer {
+	/**
+	 * Rewinds to the beginning of the file
+	 *
+	 * @return	$status		Status of this operation
+	 */
+	function rewind ();
+
+	/**
+	 * Advances to next "block" of bytes
+	 *
+	 * @return	void
+	 * @todo	This method will load large but empty files in a whole
+	 */
+	function next ();
+
+	/**
+	 * Checks wether the current entry is valid (not at the end of the file).
+	 * This method will return TRUE if an emptied (nulled) entry has been found.
+	 *
+	 * @return	$isValid	Whether the next entry is valid
+	 */
+	function valid ();
+
+	/**
+	 * Gets current seek position ("key").
+	 *
+	 * @return	$key	Current key in iteration
+	 */
+	function key ();
 }
 
 // [EOF]