llama : fix ctrl+c handler

[magicse]

ref #11605, ggml-org/llama.vim#35

For correct processing ctrl+c signal

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[ngxson]

Can you explain why this change is needed and which case does it fix?

[ngxson]

What you explained is not related to this change. I don't see why ctrl+c handler is related to that

[magicse]

Wow, sorry about that! I made two changes.

Regarding these changes:
We attempted to register the Ctrl+C event after ctx_server.queue_tasks.start_loop(). As a result, the user was no longer able to interrupt the process.

To allow the user to use Ctrl+C at any time, I think we need to register the event earlier in the process.

[ngxson]

Wow, sorry about that! I made two changes.

That's why you should have a proper title and description for each PR.

[ngxson]

This introduce another bug, now I can no longer interrupt model loading.

[ggerganov]

ref #11605

[magicse]

I'll double check everything today. Could you please clarify what operating system you use?

[ngxson]

I'm using MacOS. It should be the same on all platforms. I think you moved the handler to before model loading.