Memory Question

Fernando Carreiro 2021.04.16 20:00 #1

William Russin:

Is it possible to retain a variable double in memory, that is calculated inside an EA, that will stay in memory when a computer is restarted?

Thanks for any help... couldn't find the answer in Documentation or by Search....

I'm thinking GlobalVariableSet() may do it...can anyone confirm this?

Yes, the Global Terminal Variables is the answer!

EDIT: Just remember to flush them regularly using GlobalVariablesFlush() to prevent loss of data in case of a application or computer crash.

William Russin 2021.04.16 20:02 #2

Thanks Fernando !!! I appreciate your help !!!

William Russin 2021.04.16 20:32 #3

I've never used GlobalVariablesFlush() before...but it seems like a great plan. Does each GlobalVariableSet() that I create need to be "Flushed" after I set them? or does one GlobalVariableFlush() save them all? The documentation seems to be ok using it once to save all...

Not sure how that can be tested without having a crash LOL

Global Variables Lost on iRSIOnArray Issues [WARNING CLOSED!] Any newbie

Fernando Carreiro 2021.04.16 20:55 #4

William Russin:

I've never used GlobalVariablesFlush() before...but it seems like a great plan. Does each GlobalVariableSet() that I create need to be "Flushed" after I set them? or does one GlobalVariableFlush() save them all? The documentation seems to be ok using it once to save all...

Not sure how that can be tested without having a crash LOL

It flushes any and all pending data. In my own code, I use it every time I update a block of global terminal variables, but also for individual updates when necessary.