dynamic_modules: add timer API to network filters ABI

[agrawroh]

Description

This PR adds timer API to the Dynamic Modules network filter ABI.

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Commit Message: dynamic_modules: add timer to network filters ABI
Additional Description: Added timer API to the Dynamic Modules network filter ABI.
Risk Level: Low
Testing: Added Tests
Docs Changes: Added
Release Notes: N/A

[repokitteh-read-only]

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🐱

Caused by: #42957 was opened by agrawroh.

see: more, trace.

[mathetake]

hmm. I am against adding a timer ABI. Users can use scheduler ABI to achieve this and that's why HTTP filter doesn't have this one

[agrawroh]

hmm. I am against adding a timer ABI. Users can use scheduler ABI to achieve this and that's why HTTP filter doesn't have this one

Hmmm, do we think the scheduler is enough?

[mathetake]

I believe so but i would love the input from @wbpcode too.

[wbpcode]

I agree with @mathetake in some way 🤔 Why this is necessary and which scenarios are not supported by current way?

[agrawroh]

I agree with @mathetake in some way 🤔 Why this is necessary and which scenarios are not supported by current way?

My understanding is that scheduler is not cancellable and can't be re-armed with a different duration. Also, timers are more of "do this later" vs. scheduler which is "do this now from another thread".

We could have use-cases that actually benefit from having timers.