Does bidi_copy_buf can be used in any os

[hzxuzhonghu]

If not how could write code that can be run on any os?

[zephyrchien]

It depends on the buffer you provide. Box<[u8]> or other types which impl AsMut<[u8]>, and the associated read/write syscall can be found on any platform. However unix pipe is for unix, and splice is a linux-specific syscall.

[hzxuzhonghu]

How about bidi_zero_copy, I used it to splice between two socket in a proxy

[zephyrchien]

It is a one-line wrapper of copybuf. Please look into the source code.

[hzxuzhonghu]

I am new to rust, i suspect it is not cross-platform, just to confirm here

[zephyrchien]

bidi-zero-copy is for linux only. You can use conditional compilation to fallback to bidi-copy on other platforms.

[zephyrchien]

https://github.com/zhboner/realm/blob/master/realm_core/src/tcp/plain.rs

[hzxuzhonghu]

Thanks for the clarification here