[ECOS] TCP close(...) action

[Matt Jerdonek <maj1224@yahoo.com>]

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?

Thanks,
-- Matt

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