Hi, On 2023-02-05 11:06:13 -0500, Tom Lane wrote: > Andres Freund <and...@anarazel.de> writes: > > On February 5, 2023 1:00:50 AM GMT+01:00, Thomas Munro > > <thomas.mu...@gmail.com> wrote: > >> Are there any more descriptors we need to think about? > > > Postmaster's listen sockets? > > I wonder whether O_CLOEXEC on that would be inherited by the > client-communication sockets, though.
I'd be very suprised if it were. <hack> Nope, at least not on linux. Verified by looking at /proc/*/fdinfo/n after adding SOCK_CLOEXEC to just the socket() call. 'flags' changes from 02 -> 02000002 for the listen socket, but stays at 04002 for the client socket. If I add SOCK_CLOEXEC to accept() (well, accept4()), it does change from 04002 to 02004002. Greetings, Andres Freund
