|
Are these two seperate apps or one app
?
Regards
Paul McKenzie
Analyst Programmer
SMSS ltd.
----- Original Message -----
Sent: Friday, February 14, 2003 12:12
PM
Subject: [DUG]: [Q] A design
issue...
G'Day,
I have been trying to come up with an elegant
solution to something but have not had any success. Some suggestions and
comments would be most welcome. This is the scenario:
1. Application is
single threaded
2. Makes call to a procedure that is very intensive (say a
recursive scan of a directory tree)
Now I dont want the 2. call to
return until it has completed what it is doing. However as it utilises 100%
CPU the main application suffers. So how do I work around
this?
Possible Solutions
a) Provide a callback in the 2.
procedure so that the application can do something about things. Say call
Application.ProcessMessages
This is OK, but it would be nice if the
caller of 2. did not have to do anything.
So I guess my question is.
How do I change 2 so that it:
- Co-Operates nicely with its caller in
terms of resource usage
- Blocks until it finishes
Is it somehow
possible to kick off a thread in 2. but still have it block until it finishes
what it has to do?
I hope this is clear. Any comments, suggestions
welcome.
--
Donovan
----------------------------------------------------------------------
Donovan J. Edye [www.edye.wattle.id.au]
Namadgi Systems [www.namsys.com.au]
Voice: +61 2 6285-3460
Fax: +61 2 6285-3459
TVisualBasic =
Class(None);
Heard just before the 'Big Bang': "...Uh Oh...."
----------------------------------------------------------------------
GXExplorer [http://www.gxexplorer.org]
Freeware Windows Explorer
replacement. Also includes freeware delphi
windows explorer components.
----------------------------------------------------------------------
|
