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Top Forums Programming can-not detect TCP disconnects well Post 302228167 by redoubtable on Saturday 23rd of August 2008 06:53:59 AM
Old 08-23-2008
It would be easier if you post the code you're using.

Generally servers simply send a packet every X minutes and wait for reply for Y minutes, if there is no reply they assume the connection is timed out. You can use poll(), alarm(), setitimer()...
 

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tcp.h(3HEAD)							      Headers							      tcp.h(3HEAD)

NAME
tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP) SYNOPSIS
#include <netinet/tcp.h> DESCRIPTION
The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level: TCP_NODELAY Avoid coalescing of small segments. The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with getsockopt(). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5) SunOS 5.10 10 Sep 2004 tcp.h(3HEAD)
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