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For the similar reason I do not using any go based proxy code in my MintFlow app, and use rust to implement some proxy protocols.

But my app’s wireguard is natively implemented by fdio vpp plugin, so it’s based on C.

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I would not have guessed that iOS allows enough access to APIs to implement anything vpp-based. Very cool to see. I also enjoyed working with vpp (for the brief 6 months that I had with it).

I was thinking that's hard, but I noticed that vpp get ported to FreeBSD using epoll shim library, and I learnt apple Darwin use some some userland of FreeBSD to do POSIX compatibility, then after some tests and hacking, most related to minor POSIX API adaptation such as mmap and one major coroutine need add some assembly code, and it work! But I think most disappointed to me is that apple do lack some vectorized network IO unless do some kernel extension or other sort non standard ways.

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