8.217. Tie::HandleProvides skeletal methods for handle-tying classes. Tie::Handle provides a new method as backup in case a class has no TIEHANDLE method. (See the perltie manpage for more detailed information and for examples.) To write your own tied-handle classes, use the following methods.
TIEHANDLE classname, list Constructor. This method is invoked by the command tie *glob, classname. Associates new glob instance with class classname. list represents any additional arguments needed to complete the association.
DESTROY this Frees storage associated with the tied handle this. Permits class to take some action when an instance is destroyed. Rarely needed.
GETC this Gets one character from tied handle this. PRINT this, list Prints the values in list.
PRINTF this, format, list Prints the values in list using format.
READ this, scalar, length, offset Reads length bytes from scalar starting at offset.
READLINE this Reads one line from this.
WRITE this, scalar, length, offset Writes length bytes of data from scalar starting at offset. Copyright © 2002 O'Reilly & Associates. All rights reserved. |
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