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Re: SIGPOLL and named pipes
- From: Christopher Faylor <cgf-use-the-mailinglist-please at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Sun, 24 Aug 2008 11:14:28 -0400
- Subject: Re: SIGPOLL and named pipes
- References: <g8rhpc$ke1$1@ger.gmane.org>
- Reply-to: cygwin at cygwin dot com
On Sun, Aug 24, 2008 at 01:47:56PM +0200, Thomas Maier-Komor wrote:
>I don't get SIGPOLL on Cygwin in a software that runs fine on Linux and
>Solaris. Is there a known issue concerning SIGPOLL and named pipes.
SIGPOLL (aka SIGIO) is not implemented in Cygwin.
>Additionally, there seem to be a bug in Cygwin concerning the
>concatenation of data written to a named pipe. If I open the named
>pipe a second time with O_WRONLY, to make sure that there is always one
>valid open input to the named pipe, the data written to the pipe from
>different processes doesn't get concatenated and I have to close and
>reopen the named pipe. This is in contrast to the behavior in Linux
>and Solaris, and POSIX semantics.
Named pipes in Cygwin 1.5.25 are only partially implemented. They
should work better in 1.7.x.
cgf
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