Chain_Control Struct Reference
[Chain Handler]
#include <chain.h>
Collaboration diagram for Chain_Control:
Data Fields | |
| Chain_Node * | first |
| Chain_Node * | permanent_null |
| Chain_Node * | last |
Detailed Description
This is used to manage a chain. A chain consists of a doubly linked list of zero or more nodes.
- Note:
- This implementation does not require special checks for manipulating the first and last elements on the chain. To accomplish this the Chain_Control structure is treated as two overlapping Chain_Node structures. The permanent head of the chain overlays a node structure on the first and permanent_null fields. The permanent tail of the chain overlays a node structure on the permanent_null and last elements of the structure.
Field Documentation
This points to the first node on this chain.
Referenced by _Chain_Get_first_unprotected(), _Chain_Has_only_one_node(), _Chain_Initialize_empty(), _Chain_Is_empty(), _Thread_Calculate_heir(), and _Watchdog_First().
This field is always 0.
Referenced by _Chain_Initialize_empty(), and _Chain_Tail().
This points to the last node on this chain.
Referenced by _Chain_Append_unprotected(), _Chain_Has_only_one_node(), _Chain_Initialize_empty(), and _Watchdog_Last().
The documentation for this struct was generated from the following file:
