On Wed, 16 Dec 2009, Jogeshwar Karthik Akundi wrote:
Client uses CURL to connect to server using Connect_Only option. While the connection is running, if network cable is removed, the disconnect is not being detected. I use select() to verify readibility/writability on the socket and use curl_easy_read/write to receive/send data. when using the socket descriptor in read/write sets, select doesn't return FD_ISSET. it only times out.
...
so I tried to skip select and force sending data to CURL if buffers are available. Then curl_easy_send returns success. It is able to send packets of 20 bytes (verified only a few packets though) without errors, while I hold the network cable in my hand.
That sounds odd, but maybe you should consider having your heartbeat system require a response within a certain time anyway?
In the same case, we get an error immediately on windows. This issue is OSX specific (atleast for me here).
Perhaps it is, but I'm not aware of any such OSX peculiarities. What does (the equivalent of) strace show?
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