hi all,
could someone tell me how to get the thread id when do the open_call()/close_call()?
or we can get the thread id unless wo do the l4_ipc_send() operation?
I only want to get the thread id who do the open_call()/close_call() operation? When more than one task do the operation The server can store the thread id.
thank you and best wishes.
On Sun, Aug 30, 2009 at 6:00 PM,
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Today's Topics:
1. Re: can server side get the thread id of client side?
(fang zhengshu)
----------------------------------------------------------------------
Message: 1
Date: Sun, 30 Aug 2009 02:57:16 -0400
From: fang zhengshu <fangzhsh07@gmail.com>
To: l4-hackers@os.inf.tu-dresden.de
Subject: Re: can server side get the thread id of client side?
Message-ID:
<a73d246f0908292357w7ddaed5cwdb2a3013b07020c5@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
hi all,
3. Re: can server side get the thread id of client side?
> (Bj?rn D?bel)
> Message: 3
> Date: Fri, 28 Aug 2009 09:40:17 +0200
> From: Bj?rn D?bel <doebel@os.inf.tu-dresden.de>
> To: L4 Hackers <l4-hackers@os.inf.tu-dresden.de>
> Subject: Re: can server side get the thread id of client side?
> Message-ID: <4A9789E1.7080503@os.inf.tu-dresden.de>
> Content-Type: text/plain; charset=ISO-8859-1
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> > I know that the client side can get the server's thread_id throw name
> > service. I want to ask can the server side get the client's task_id or
> > thread_id?
> > or must the client side send the thread_id to server?
>
> your server will call either l4_ipc_wait() or l4_ipc_reply_and_wait() in
> order to receive the message from the client. In both cases there is a
> src parameter which will contain the client's thread ID after the system
> call returns.
>
sorry for not explaining it clearly.
if I defined two functions in idl file, just like:
interface test{
int open(int fd, int flags);
int close(fd);
};
and I implement them in the server side.
I know that when I use open()/close() in the client side, the server will
call the function open_component()/close_component() which are in the server
side.
In the open_component()/close_component() function I want to get thread id
of the caller to do some operation flag.but as we know, when we call
open()/close() in client side, the open_component()/close_component()
function in server side will be executed. so we can not use l4_ipc_wait() or
l4_ipc_reply_and_wait() function in the open_component()/close_component()
function, or it will be stop and wait for a message in the function. So in
order to get the thread id in the open_component()/close_component(), when
or where should I use the l4_ipc_wait() or l4_ipc_reply and wait() to get
the thread id?
thank you!
--
fang,
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fang,