Posted by Ratvin on 11/18/85 11:51

sem_remove will cause trouble if there are other processes blocking on
the semaphore. This has already been tried.

Is there any way to remove a semaphore only if there are no processes
waiting on it?

I mean to say that if there are processes blocking on the sem then
release the semaphore after use otherwise remove it.

I m in search of the best possible strategy to do this....

Any suggestions?

Thanks
Ratheesh K J

Marek Simon wrote:

> try sem_remove();
> Marek
>
> Unni napsal(a):
> > Hello all,
> >
> > I m facing a memory related problem with semaphores. Our business
> > application uses semaphores extensively and the limit imposed by the OS
> > on the number of semaphores that can exist on the system is only 128.
> >
> > This could be increased to a higher value but that would not be a
> > permanant solution to my belief. We are using the sem_get, sem_acquire
> > php functions. After the use we are releasing the semaphore by using
> > sem_release.
> >
> > The problem is that the semaphore will remain on the system until it is
> > rebooted. And once the limit of 128 semaphores is reached, any attemt
> > to create a new semaphore will result in a "No space left on device"
> > error.
> >
> > Can anybody help with any solutions in this regard.
> >
> > Thanks
> >
> > Ratheesh K J
> >

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