Horak Daniel <horak(at)mmp(dot)plzen-city(dot)cz> writes:
> I have tested my solution a bit more and I have to say that reusing a
> semaphore by a new backend works OK. But it is not possible for a newly
> created backend to use a semaphore allocated by postmaster (it freezes on
> test if the semaphore with given key already exists - done with
> semId=semget(semKey, 0, 0) in function IpcSemaphoreCreate() in
> storage/ipc/ipc.c ). Why it is, I don't know, but it seems that my solution
> uses the ipc library in the right way.
It seems that you have found a bug in the cygipc library. I suggest
reporting it to the author of same...
regards, tom lane