[edk2-devel] [NetworkPkg] Clarification on EFI_TCP6_PROTOCOL Destruction Behavior

[Ayush Singh]

Hello everyone. I am trying to implement Network Support in Rust std for 
UEFI. While trying to use the TCP6_PROTOCOL, I am not quite sure how to 
deal with destructing the protocol. Since TCP6_PROTOCOL is created using 
a EFI_SERVICE_BINDING_PROTCOL, it should be destroyed using the 
`DestroyChild()` method. However, do I also have to call 
`TCP6_PROTOCOL->Close()` before this or will `DestroyChild()` do that 
implicitly? If I do have to call this method myself, then do I need to 
do `DestroyChild()` in the `CloseToken->Event->NotifyFunction` or is it 
fine to `DestroyChild()` after calling `Close()` (event though `Close` 
is nonblocking) ?


Also, it would be great if someone can point me to some TCP Network 
applications. I did find some but most were either drivers, or were very 
simple and did not do any Cleanup stuff.


Note: Rust does not need the user to close the connection manually. It 
is closed once the object is dropped (which is done once the object 
owner goes out of scope at compile time).


Yours Sincerely

Ayush Singh



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