* usage of pipes
@ 2004-11-23 5:54 Jagadeesh Bhaskar P
2004-11-23 6:43 ` Glynn Clements
2004-11-23 8:15 ` Justinas
0 siblings, 2 replies; 3+ messages in thread
From: Jagadeesh Bhaskar P @ 2004-11-23 5:54 UTC (permalink / raw)
To: linux-c-programming
Hi,
I created a pipe in a program. Now i want to write through that to
another program. Is it possible?
Or putting it in other words, can I communicate with a pipe (and not a
named pipe or FIFO), between 2 entirely independent processes?
--
Jagadeesh Bhaskar P <jbhaskar@hclinsys.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: usage of pipes
2004-11-23 5:54 usage of pipes Jagadeesh Bhaskar P
@ 2004-11-23 6:43 ` Glynn Clements
2004-11-23 8:15 ` Justinas
1 sibling, 0 replies; 3+ messages in thread
From: Glynn Clements @ 2004-11-23 6:43 UTC (permalink / raw)
To: Jagadeesh Bhaskar P; +Cc: linux-c-programming
Jagadeesh Bhaskar P wrote:
> I created a pipe in a program. Now i want to write through that to
> another program. Is it possible?
> Or putting it in other words, can I communicate with a pipe (and not a
> named pipe or FIFO), between 2 entirely independent processes?
The other process needs a descriptor for the other end of the pipe.
AFAIK, there are only two ways to achieve this: either both processes
must have a common ancestor which creates the pipe, or the processes
must communicate via a Unix-domain socket so that the creator can send
the descriptor using sendmsg() with an SCM_RIGHTS message.
--
Glynn Clements <glynn@gclements.plus.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: usage of pipes
2004-11-23 5:54 usage of pipes Jagadeesh Bhaskar P
2004-11-23 6:43 ` Glynn Clements
@ 2004-11-23 8:15 ` Justinas
1 sibling, 0 replies; 3+ messages in thread
From: Justinas @ 2004-11-23 8:15 UTC (permalink / raw)
To: Jagadeesh Bhaskar P; +Cc: linux-c-programming
On Tue, 23 Nov 2004 11:24:24 +0530
Jagadeesh Bhaskar P <jbhaskar@hclinsys.com> wrote:
> Hi,
>
> I created a pipe in a program. Now i want to write through that to
> another program. Is it possible?
> Or putting it in other words, can I communicate with a pipe (and not a
> named pipe or FIFO), between 2 entirely independent processes?
>
>
Helo.
Here are some info on this topic:
http://www.gnu.org/software/libc/manual/html_node/Pipes-and-FIFOs.html
> --
> Jagadeesh Bhaskar P <jbhaskar@hclinsys.com>
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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