Re: Win32 semaphore patch - Mailing list pgsql-patches

From Tom Lane
Subject Re: Win32 semaphore patch
Date
Msg-id 26606.1145557207@sss.pgh.pa.us
Whole thread Raw
In response to Re: Win32 semaphore patch  ("Magnus Hagander" <mha@sollentuna.net>)
List pgsql-patches
"Magnus Hagander" <mha@sollentuna.net> writes:
> For #2, yes, the semaphores will go away when the last process holding a
> HANDLE to it goes away.

Well, that raises an interesting point: exactly where in this code does
ownership of the HANDLEs get propagated to the child processes?  As
written, the HANDLEs seem to belong only to the postmaster --- will the
kernel calls even work in the child processes?  According to what
someone was telling me the other day, HANDLEs are process-local, so just
storing them in shared memory doesn't seem like it should work.

            regards, tom lane

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