feat: Add TCP socket support

[papazof]

Add primitives for TCP support:

• Add helpers to parse TCP addresses
• Add TCP transport and helpers for the async implementation

Note:
This PR does not include Windows support for TCP since we don't use or have experience with it, but since the TCP support is based on std::net components the rust primitives should be cross-platform

@lifupan

[Tim-Zhang]

Hi @papazof, Thank you for you pull request and how about adding a new example which name is like async-tcp-server and async-tcp-client

With these two files, we can not only know how to use the TCP feature, but also quickly add it to the CI

ttrpc-rust/tests/run-examples.rs

Line 88 in 2244900

run_example("async-stream-server", "async-stream-client")?;

Thanks again!

[teawater]

Cool!

[papazof]

Hi @papazof, Thank you for you pull request and how about adding a new example which name is like async-tcp-server and async-tcp-client

With these two files, we can not only know how to use the TCP feature, but also quickly add it to the CI

ttrpc-rust/tests/run-examples.rs

Line 88 in 2244900

run_example("async-stream-server", "async-stream-client")?;

Thanks again!

Sure, i was debating on how to add examples on this. The workflow is the same as the existing examples (apart from the sock removal), so all previous examples should work (on unix) by simply changing the socket. Do you think extending the existing examples - ie. with a cli arg - would make sense for you or do you have another solution in mind?

[Tim-Zhang]

Hi @papazof, Thank you for you pull request and how about adding a new example which name is like async-tcp-server and async-tcp-client
With these two files, we can not only know how to use the TCP feature, but also quickly add it to the CI

ttrpc-rust/tests/run-examples.rs

Line 88 in 2244900

run_example("async-stream-server", "async-stream-client")?;

Thanks again!

Sure, i was debating on how to add examples on this. The workflow is the same as the existing examples (apart from the sock removal), so all previous examples should work (on unix) by simply changing the socket. Do you think extending the existing examples - ie. with a cli arg - would make sense for you or do you have another solution in mind?

Good, let's do it.

[papazof]

I had a go at extending the examples. Let me know if you want something handled differently.

[Tim-Zhang]

LGTM, thanks @papazof