How do I terminate the script by using the API G__calc?

ROOT
1

Hi Everyone,

I used the CINT interpreter, it’s very convenient for me.
But I have a question for how to terminate the script that is running by API G__calc?

My programming source code is running the G__calc in a thread like:
…
…
G_calc(“main()”);

My script likes:
while(1) {
…
…
}

Now, I only use the dangerous API “TerminateThread” to terminte the script, but it always memory leaks :cry:

Dose anybody suggest me how to resolve the question?

Thanks,

ChuYuan

2

Hi,

What about simply using ‘return’? (Or maybe exit if you want to also end the process).

Cheers,
Philippe.

3

Hi,
Because the code is blocking while running the C script file by the API G__calc, I do not have any method to notify the C script “return”; I only used the TerminateThread to terminate the running thread :frowning:

4

Hi,

you could share a variable, say “int terminateThread” with G__calc. You pass it into G__calc as the address to the variable, i.e.

int terminateThread = 0;
char buf[1024];
sprintf(buf, "main((int*)%ld)", &terminateThread);
G__calc(buf);

main() now becomes:

main(int* pTerminateThread) {
...
while(!*pTerminateThread) {
}

You end G__calc by simply setting int terminateThread = 1. There is an issue with the two threads accessing the same memory address without synchronization, but really, you don’t care :slight_smile:

Cheers, Axel.