RE: read() & close()

[Kevin Curtis]

Hi,
	I have come across this problem when implementing a sockets
interface to our X.25 card.  On the thread that wants to close the socket,
it must first issue a shutdown().  This will unblock the read() or poll().
And then you can do the close().  

Kevin

-----Original Message-----
From: bert hubert [mailto:[e-mail]]
Sent: 20 March 2003 15:08
To: Filipau, Ihar
Cc: '[e-mail]'
Subject: Re: read() & close()

On Thu, Mar 20, 2003 at 03:14:52PM +0100, Filipau, Ihar wrote:

>     I have/had a simple issue with multi-threaded programs:
> 
>     one thread is doing blocking read(fd) or poll({fd}) on 
>     file/socket.

You can't do poll on a file, it won't tell you anything useful, so I assume
you mean a socket.

>     another thread is doing close(fd).
> 
>     I expected first thread will unblock with some kind 
>     of error - but nope! It is blocked!

Can you show code with this problem?

Regards,

bert

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