Let's say I have two processes which are accessing a shared resource (let's say shared memory). Now, these two processes will need some kind of synchronisation mechanism, to be able to access the resource properly, and avoid race condition.

Currently, shared semaphores can be shared with child processes, but there is no way of accessing a named shared semaphore by two separate processes.

Although, the semaphore created by default is a named semaphore, and has the potential to be accessed by multiple processes, but because of the flags, it can't be opened by any other process.

This is a feature request, and not a bug, therefore I have selected type as enhancement.