Questions about NWTCPConnection

Question

Ladder Network OP

Created Oct ’19

Replies 2

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Participants 2

I want to know how the connection mode of NWTCPConnection works.

Is the blocking mode used?

I didn't find the answer in the official document, I hope someone can help me.

Can it be changed to non-blocking mode if it is blocking mode?

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Answer 1

DTS Engineer OP

Apple

Oct ’19

Accepted Answer

NWTCPConnection

is an asynchronous API.

ps Your questions about “blocking mode” assume that, under the covers,

NWTCPConnection

is using a BSD Socket. This is not the case [1]. Rather, it’s implemented using our shiny new user-space networking stack, as introduced in WWDC 2017 Session 707 Advances in Networking, Part 1.

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Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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[1] Except for macOS, where the continued existence of NKEs means that we can’t yet enable user-space networking.

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Answer 2

Ladder Network OP

Oct ’19

Thank you eskimo.

You answered my doubts!

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