Re: [ECOS] TCP close(...) action

[Gary Thomas <gary@mlbassoc.com>]

On Sat, 2003-10-18 at 12:24, Matt Jerdonek wrote:
> Hi Folks,
> 
> I have a simple program with two threads that send /
> recv from a single TCP socket.  One thread blocks on a
> recv call while the other thread sends data on the
> same socket.
> 
> I put a close call in the send thread.  The expected
> behavior was for the recv thread to wake (with 0 bytes
> of data) and a FIN to be sent on the ethernet.  The
> actual behavior was that the recv thread never woke
> and the FIN was not sent.  (Is this intended or a
> bug?).  I found the soclose function would not be
> invoked because the recv was still using the file
> handle.  Once the recv released the file handle, the
> FIN flowed on the ethernet.
> 
> I worked around this issue by calling
> cyg_thread_release from my application, which woke up
> the recv thread.  But I wonder if there is better
> solution?  Could (or should) the close call be made to
> wake up blocked threads?  If so, any suggestions?
> 

How did you create this socket?  How did you set up
the send and receive threads?  Maybe a code snippet would
help us understand your problem.

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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