Alternatives to signals

harsha.kgp · External Since: Jul 10, 2007 Posts: 2

hi,
I am trying to send notifiications from kernel to user-mode
process in linux. What are the ways to achieve this?
I found two ways
1) signals
2) using the /proc file system

are there any other ways to to notify user mode process from the
kernel.

thanks
harry

ellis · External Since: Apr 02, 2004 Posts: 193

In article <1184027806.007029.213500.TakeThisOut@j4g2000prf.googlegroups.com>,
<harsha.kgp.TakeThisOut@gmail.com> wrote:

>are there any other ways to to notify user mode process from the
>kernel.

Theres select and poll.

Bin Chen · External Since: Jun 01, 2007 Posts: 37

On Jul 10, 8:36 am, harsha.... RemoveThis @gmail.com wrote:
> hi,
> I am trying to send notifiications from kernel to user-mode
> process in linux. What are the ways to achieve this?
> I found two ways
> 1) signals
> 2) using the /proc file system
>
> are there any other ways to to notify user mode process from the
> kernel.
>
> thanks
> harry

netlink socket, google it.

Josef Moellers · External Since: Jul 07, 2005 Posts: 389

harsha.kgp RemoveThis @gmail.com wrote:
> hi,
> I am trying to send notifiications from kernel to user-mode
> process in linux. What are the ways to achieve this?
> I found two ways
> 1) signals
> 2) using the /proc file system
>
> are there any other ways to to notify user mode process from the
> kernel.

There's only one way to send asynchronous notifications to a user
process and that is signals.
Obviously, there are a couple of other ways to send synchronous
notifications: select/poll, read in /proc or /sys or /dev.

--
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