A better way to share global data structures than as global variables?

[mvanrijnen 123]

post deleted?

 

[Brian Evans 105]

4 hours ago, mvanrijnen said:

post deleted?

 

Looks like it. There was another post by the same account in a different topic that also looked auto generated but had an extra sentence not really on topic with a link to a commercial software/service website. 

[Dalija Prasnikar 1396]

4 hours ago, Brian Evans said:

Looks like it. There was another post by the same account in a different topic that also looked auto generated but had an extra sentence not really on topic with a link to a commercial software/service website. 

This is classic AI spammer tactic. Post AI on random posts to make it look like user is actively participating, and then separately they also post blatant spam.

[JonRobertson 72]

On 1/27/2022 at 8:09 AM, Fr0sT.Brutal said:

You don't have full and flexible control over when a DM is created

Yes you do, as long as you have the source code. You have complete control over when a DM is created.

[Bill Meyer 337]

On 3/8/2022 at 9:01 PM, Steven Kamradt said:

In your case, I would put the variables you are working with in a class or even a record and set the scope to what you selected as private to the thread.  Keep it simple, its all about preventing access from multiple threads.  If you have a global variable that needs to be accessed by multiple threads, protect the access using some sort of semaphore, such as a critical section or spin lock.

Before anyone gets too upset, my perspective is based on dealing with legacy code you have come into. There are numerous advantages to encapsulating global variables. Not only do you establish a measure of access control, but if you expose them as properties with getters and setters, you can easily set breakpoints to discover points of interaction. Equally, you could introduce logging. But even without those benefits, you will be altering the calling code to reference MyGlobals.SomeState, rather than simply SomeState. Once you have accomplished that tedious task, it is also a simple matter to search for all such references by searching on MyGlobals.

 

Other benefits will become apparent as you work through things.

[silvercoder79 24]

Just to add to the previous reply... I would move into a record like described here -

 

https://caryjensen.blogspot.com/2012/01/for-record.html?m=1

 

And depending on how you want to "use" it, you could definition it in main application class or form and pass around as necessary.  Or just declare instance somewhere for use.

 

Just my 2c worth