worker thread

[ashwarrior]

i have created a visual C++ workspace and i uses worker thread method, what i want to ask is what is the maximum number of threads can it runs?

[Arjay]

That's not a good question because it points to the fact that if you need that many threads, then you don't have a good design.

Since creating a thread requires a handle, one limit is the max # of handles available on the system. A while back (I think NT4 or Win2K) that used to be around 65K. Of course not all those would be available (because of other apps running, etc.).

You have a more practical limit of several thousand, but still that doesn't mean that using that many is a good design. Investigate thread pooling via QueueUserWorkItem api.

[ashwarrior]

ok the program i have done total need of ten threads but when i put in the last thread coding in i have error when executing the program.

[Arjay]

It's time to get out the undisputed king of troubleshooters.


That's right, pull out "the debugger."

Look for resources shared between threads that aren't synchronized.

[ashwarrior]

i can try it but i dont know if i learn the solutions from there

[Arjay]

Post the code from one of the thread procedures.