Re: interprocess communication
Re: interprocess communication
- Subject: Re: interprocess communication
- From: Terry Lambert <email@hidden>
- Date: Fri, 21 Nov 2008 17:01:17 -0800
Depends:
<http://www.opengroup.org/onlinepubs/009695399/functions/pthread_condattr_setpshared.html
>
% grep pthread_condattr_setpshared /usr/include/*.h
/usr/include/pthread.h:int
pthread_condattr_setpshared(pthread_condattr_t *,
Personally, I would use a counting semaphore, which is why I suggested
he look that up instead.
-- Terry
On Nov 21, 2008, at 3:41 PM, Jean-Daniel Dupas wrote:
Correct me if I'm wrong, but pthread_cond (unlike named semaphores)
are only for intrerthread communication, not interprocess
communication, isn't it ?
Le 22 nov. 08 à 00:30, Terry Lambert a écrit :
man pthread_cond_wait
man pthread_cond_signal
man pthread_cond_broadcast
-- Terry
On Nov 20, 2008, at 9:31 PM, Rakesh Singhal wrote:
Yes, but I do not need counting semaphore. Binary semaphore fits
in my
case. I am looking for it to understand and then implement.
Regards
On Fri, Nov 21, 2008 at 2:05 AM, Terry Lambert
<email@hidden> wrote:
On Nov 20, 2008, at 4:07 AM, Jean-Daniel Dupas wrote:
Le 20 nov. 08 à 12:30, Rakesh Singhal a écrit :
I want some advice on Inter Process Communication (IPC). I have
one
dynamic library(dylib) and one application(app). Actually I am
porting
something from Windows so I will write about windows code.
In Application, I create one event object (eventName). Now, I
create
one thread and call waitForSingleObject and now it is waiting for
someone to set the event and the it will come out. In DLL I
create
one event object of same name (eventName). Now, whenever I
need, set
the event in DLL then in application that thread comes out of
wait and
executes the code and again start waiting.
You are describing a condition variable, which is a simplified
case of a
counting semaphore. Google either of these.
-- Terry
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