On Wed, 6 Sep 2000, Andrey A. Chernov wrote:
> Please consider that we talk not about reads but about select. 'Select' is
> used to indicate that data is available while 'read' used to read it, they
No, select on a read descriptor returns successfully when the descriptor
is "ready" to read, what
On Wed, Sep 06, 2000 at 12:44:33AM +0400, Andrey A. Chernov wrote:
[snip]
>
> Please consider that we talk not about reads but about select. 'Select' is
> used to indicate that data is available while 'read' used to read it, they
> are two different things and behaviour of one thing not related t
On Wed, Sep 06, 2000 at 07:35:50AM +1100, Bruce Evans wrote:
> This behaviour is sort of intentional. Reads on a named pipe with no
> writers are specified by POSIX.1 to return immediately. 4.4BSD does
> extra work to break this in some cases. select() on a read descriptor
> open on such a pipe
On Tue, 5 Sep 2000, Peter van Dijk wrote:
> On Tue, Sep 05, 2000 at 07:50:56PM +0400, Andrey A. Chernov wrote:
> > Consider this comment comes from screen(1):
> >
> > /*
> > * Define this if your system exits select() immediatly if a pipe is
> > * opened read-only and no writer has opened it.
On Tue, Sep 05, 2000 at 07:24:58PM +0200, Peter van Dijk wrote:
> > select return code -1 with wrong errno == 0.
Sorry, I was wrong about errno, it returns that descriptor is ready for
read while there is nothing to read.
> I surely do think this behaviour is broken.
>
> http://www.freebsd.org/
On Tue, Sep 05, 2000 at 07:50:56PM +0400, Andrey A. Chernov wrote:
> Consider this comment comes from screen(1):
>
> /*
> * Define this if your system exits select() immediatly if a pipe is
> * opened read-only and no writer has opened it.
> */
> #define BROKEN_PIPE 1
>
> We have broken(?) pi
Consider this comment comes from screen(1):
/*
* Define this if your system exits select() immediatly if a pipe is
* opened read-only and no writer has opened it.
*/
#define BROKEN_PIPE 1
We have broken(?) pipe, according to this statement. At least, we have
select return code -1 with wrong e
