Re: multithreaded callbacks (was Re: [AD] de fourium pointium ohium)

[Peter Wang <tjaden@xxxxxxxxxx>]

On 06 Aug 2001, Eric Botcazou <ebotcazou@xxxxxxxxxx> wrote:
> This makes me think: which semantics to choose for these "mutexes" regarding
> multiple locking ? The way the mini-API is currently designed
> (acquire_mutex()/release_mutex()) might suggest to use the same semantics as
> acquire_bitmap()/release_bitmap(), that is multiple acquire calls can be
> nested and the "mutex" will be truly released only if the lock count returns
> to zero (this is the behaviour of Win32 mutexes and critical sections).

Also the behavior of pthread mutexes, and almost certainly BeOS
semaphores (can someone else check this please?).

So (probably) we might as well allow nesting.