Passing events from Delphi to running code in C memory

[RadekXxX]

I don't think it's possible, but I'll ask.

Example: Delphi will receive an event from a serial port, for example, and I would like to pass this event to C using the previously obtained GetSymbol pointer, but at the same time I need the C code to be run using the RUN command. But to get GetSymbol, I have to run Relocate, and then I can't call Run.

It would theoretically be possible to:

1. Call Relocate
2. GetSymbol(onEvent) and GetSymbol(main)
3. Run the main function obtained using GetSymbol in a Delphi thread
4. If the event occurs, call onEvent obtained using GetSymbol

Note: The main function would contain a while true {},...

Thank you

[jarroddavis68]

yes, this should be possible as long as you are using the same instance. Make sure to put critical sections guards around the access. Note, I have not tested this situation at all so you will have to report any issues you find, and we will see if we can fix them.

[RadekXxX]

If you mean using critical sections to call a Delphi->C function, I think it won't work, because if I call the main function and activate the critical section before, it will never be released, because the main function in C will contain an infinite loop.

If that's not possible, the solution would be to call the Delphi function from a C loop to check if any event occurred in Delphi.

I'll test it and give feedback, but first I need to test the port on ARM and ARM64