Table of Contents
Previous Chapter Chapter 32: State
The state record is used to store an arbitrary ASCII string.
-----------------------------------------------------------
Field Type DCT Initial Access Modify Rec Proc PP
Monitor
-----------------------------------------------------------
VAL STRING Yes Null Yes Yes Yes Yes
OVAL STRING No Null Yes No
-----------------------------------------------------------
----------------------------------------------------------
Name Summary Description
----------------------------------------------------------
VAL Value Field An arbitrary string value
OVAL Old Value Used to decide when to invoke monitors.
----------------------------------------------------------
Two record support routines are provided:
process
process triggers monitors on VAL when it changes and scans the forward link if necessary.
get_value
get_value fills in struct valueDes so that it refers to VAL.
Table of Contents
Next Chapter