New POSIX semaphore functionality

Robert Collins
Mon Oct 27 12:10:00 GMT 2003

On Mon, 2003-10-27 at 23:05, Corinna Vinschen wrote:

> The only missing functionality from POSIX semaphore now is sem_unlink().
> I don't how to implement it correctly.  The requirement is, if a process
> has called sem_unlink(), further calls to sem_open() using the same name
> will create a new semaphore.  Other processes, which have still a 
> semaphore using the same name, but opened before the call to sem_unlink(),
> are unaffected.  This isn't supported by Windows semaphores, AFAIK.

It isn't. Back when I was working this code, I intended to do process
shared foo via cygserver - allowing this to work.

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