[Issue 14260] std.net.curl.byLineAsync should be stoppped manually.

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=14260

Martin Nowak <code at dawg.eu> changed:

           What    |Removed                     |Added
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                 CC|                            |code at dawg.eu

--- Comment #1 from Martin Nowak <code at dawg.eu> ---
The code is already provisioned to handle that, just need to enhance
WorkerThreadProtocol to add an abort method that sends a bool to workerTid.
This will be received in _receiveAsyncChunks and tell curl to abort the request
(by returning 0 from onReceive).

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