TCache class

In unit CacheCls

Cache class.

Declaration

pascal

TCache = class

Description

TCache implements a cache class: it is a list-like class, but which uses a counting mechanism, and keeps a Most-Recent-Used list; this list represents the 'cache'. The list is internally kept as a doubly-linked list.

The Data property offers indexed access to the array of items. When accessing the array through this property, the MRUSlot property is updated.

Properties

`Data`	public	Indexed access to data items.
`MRUSlot`	public	Most recent item slot.
`LRUSlot`	public	Last used item.
`SlotCount`	public	Number of slots in the list.
`Slots`	public	Indexed array to the slots.

Methods

`Create`	public	Create a new cache class.
`Destroy`	public	Free the TCache class from memory.
`Add`	public	Add a data element to the list.
`AddNew`	public	Add a new item to the list.
`FindSlot`	public	Find data pointer in the list.
`IndexOf`	public	Return index of a data pointer in the list.
`Remove`	public	Remove a data item from the list.

Events

`OnIsDataEqual`	public	Event to compare 2 items.
`OnFreeSlot`	public	Event called when a slot is freed.

Fields

`FSlotCount`	protected
`FSlots`	protected
`FMRUSlot`	protected
`FLRUSlot`	protected

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.