[lwip-users] Why closesocket block ?

[runjin]

First,I set the socket in this code:

 

unsigned long ul = 1 ;

                    ioctlsocket(nNewSocket,FIONBIO ,&ul);

                     BOOL bDontLinger=FALSE;

                     setsockopt(nNewSocket,SOL_SOCKET,SO_DONTLINGER,(char*)&bDontLinger,sizeof(bDontLinger));

 

 

When I call closesocket to close the socket,this function block for a long time,why this happen?

 

 

2010-11-29

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runjin