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Re: [lwip-users] idle connection timeout

From: address@hidden
Subject: Re: [lwip-users] idle connection timeout
Date: Mon, 15 Sep 2014 22:49:02 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

mobin.seven wrote:
I want to close idle connections on server side with 15s timeout.
Is  SO_RCVTIMEO what I need?
I use this line:
int timeout = 15000;
lwip_setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));

Where did you get that line from? lwIP tries to implement the standard. And the standard says (google for "opengroup so_rcvtimeo" and you find it) that it "accepts a timeval structure" for SO_RCVTIMEO. I guess you have been using winsock before (they use a DWORD pointer with miliseconds)? Winsock is in most cases not a good example when trying to write portable code :-)


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