From kde-devel  Wed Nov 06 01:58:39 2002
From: Jasem Mutlaq <mutlaqja () ku ! edu>
Date: Wed, 06 Nov 2002 01:58:39 +0000
To: kde-devel
Subject: Re: Active objects, threads, signals & slots
X-MARC-Message: https://marc.info/?l=kde-devel&m=103654802825829

> while (true) {
>     wait_for_something_to_happen_with_timeout
>     if (something_happened) {
>         process
>     }
>     if (userCancelled) {
>         do_a_clean_exit
>     }
> }
>=20
> Most of the time is spent waiting.
>=20

I exactly have the same problem, the main application updates a message q=
ueue,=20
the client checks if the queue has any messages, and if there is, it=20
dispatches them.

while (true)
{
  // semaphore
  sem_wait(&semdata)
 =20
   if (!message.empty())
       dispatch(message);

  sem_post(&semdata);
}

But the above looks like it's going to burn the CPU. Any ideas?

Jasem Mutlaq

 
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