?
Solved

C/Motif/*nix: Long processing is locking out the GUI window.

Posted on 2004-09-10
1
Medium Priority
?
223 Views
Last Modified: 2010-04-15
I have an application in C/Motif on Solaris which will go off into some long processing routines which can last several minutes (basically opening large files, reading and manipulating data, then writing out to a new file in a different format).  This long processing is started in a Callback function.  During this time the GUI main window is essentially locked up.  Now, it's not completely locked up because I'm dumping info to a text window and the window is occasionally updated, but the user is not able to access any menus, etc.  I assume it's simply because the processing function is eating all the CPU time.  Once the Callback process completes the window is accessible again.  BTW, I'm running CDE and all other windows outside my application are still active.  Is there a solution to this?
0
Comment
Question by:jimdgar
1 Comment
 
LVL 23

Accepted Solution

by:
brettmjohnson earned 375 total points
ID: 12029660
I think you should probably run the long processing routines in a separate thread.
Have the callback routine spawn the thread.  Have the background thread send
messages to the main thread, which can display the status in the GUI.
0

Featured Post

Simplify Active Directory Administration

Administration of Active Directory does not have to be hard.  Too often what should be a simple task is made more difficult than it needs to be.The solution?  Hyena from SystemTools Software.  With ease-of-use as well as powerful importing and bulk updating capabilities.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An Outlet in Cocoa is a persistent reference to a GUI control; it connects a property (a variable) to a control.  For example, it is common to create an Outlet for the text field GUI control and change the text that appears in this field via that Ou…
Examines three attack vectors, specifically, the different types of malware used in malicious attacks, web application attacks, and finally, network based attacks.  Concludes by examining the means of securing and protecting critical systems and inf…
The goal of this video is to provide viewers with basic examples to understand opening and writing to files in the C programming language.
The goal of this video is to provide viewers with basic examples to understand recursion in the C programming language.
Suggested Courses

601 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question