Function should_keep_alive 

pub fn should_keep_alive(request: &Request) -> bool

Determines if a connection should be kept alive based on request headers and version.

This is a convenience function that combines Connection header parsing with HTTP version-aware keep-alive logic.

Arguments

• request - The HTTP request to check

Returns

true if the connection should be kept alive, false otherwise.

Behavior

• HTTP/1.1 defaults to keep-alive unless Connection: close is present
• HTTP/1.0 requires explicit Connection: keep-alive to stay open
• Connection: close always closes the connection
• Connection: keep-alive always keeps the connection open