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Idle connections are not monitored right now. So if a server closes after a response without advertising it, it won't be detected until a next request wants to use the connection. This is a bit problematic because it unnecessarily maintains file descriptors and sockets in an idle state. This patch implements a very simple idle connection manager for the stream interface. It presents itself as an I/O callback. The HTTP engine enables it when it recycles a connection. If a close or an error is detected on the underlying socket, it tries to drain as much data as possible from the socket, detect the close and responds with a close as well, then detaches from the stream interface. |
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