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Add support for concurrent send/recv apis for tun device #87
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kp-mariappan-ramasamy
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Tokio supports async api's for UDP socket which does not need `&mut self` pub async fn recv(&self, buf: &mut [u8]) -> Result<usize> pub async fn send(&self, buf: &[u8]) -> Result<usize> This makes it pretty easy to call it concurrently, without adding Arc<Mutex<T>> to UdpSocket. This PR tries to add support for similar apis to tun device. In this commit, only sync version of recv/send apis are added. Async version will be added in further commit. Reference: https://docs.rs/tokio/latest/tokio/net/struct.UdpSocket.html#method.recv https://docs.rs/tokio/latest/tokio/net/struct.UdpSocket.html#method.send
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Thanks @xmh0511 for the review. I have addressed the comments and tested in linux and android platform. Can you please take a look again ? |
Everything sounds good to me, I will merge this PR after checking passed. |
Since unix uses AsyncFd from tokio, it is easier to wait for Ready on AsyncFd and call sync send/recv apis This commit does not take care of windows, which is not as straight-forward as posix variants.
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When adding support for async send/recv apis in ssrlive#87, ios and android builds got broken with following error error[E0433]: failed to resolve: use of undeclared crate or module `io` Root cause: Both ios and android platform code did not import std::io::self which caused it to fail. Updated it to use full path to fix it
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Tokio supports async api's for UDP socket which does not need
&mut selfThis makes it pretty easy to call it concurrently, without adding Arc<Mutex> to UdpSocket.
This PR tries to add support for similar apis to tun device in
tun2crate.Reference:
https://docs.rs/tokio/latest/tokio/net/struct.UdpSocket.html#method.recv
https://docs.rs/tokio/latest/tokio/net/struct.UdpSocket.html#method.send
This PR does not take care of windows, which is not as straight-forward as posix variants.