Multithreading in MFC

Question

Hi

I was trying to do sample code to understand multithreading in MFC

I have a scenario as mentioned below.

Thread A ->Should Write to a buffer

Thread B ->Should Write to buffer after Thread A completes

Thread C ->Should Write to buffer after Thread A and B completes .

Thread D ->Reads from the buffer and send it to printer driver.

So as mentioned above,three thread is writing to a buffer one by one and one thread is reading from that buffer.

can anyone give me a flow chart or sample code for this how can we implement this case.

Thanks

Abhi

Sam Hobbs · Answer

Then you can use events. In the main thread create one event for each thread and then each thread can wait for it's event. The events can either be signaled by the preceding thread or the main thread could wait on another event or other events that is/are for thread completion. This site (c-sharpcorner.com) is by definition for C# therefore there is not so much about MFC. I have an article in my web site that should help you; see my Events for Threads .

Abhi MFC · Answer

I was trying to understand how to handle multiple threads thats why i took four threads. just to know how does threads communicates between each other and what all MFC classes do we need to use to implement this case.

Sam Hobbs · Answer

Why use threads for that? Your requirements by definition are to do everything sequentially so there is no need for threads.