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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). &nbsp;This long processing is started in a Callback function. &nbsp;During this time the GUI main window is essentially locked up. &nbsp;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. &nbsp;I assume it's simply because the processing function is eating all the CPU time. &nbsp;Once the Callback process completes the window is accessible again. &nbsp;BTW, I'm running CDE and all other windows outside my application are still active. &nbsp;Is there a solution to this?
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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?

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

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.