On 30/11/2023 22:26, Andres Freund wrote:
On 2023-11-30 01:36:25 +0200, Heikki Linnakangas wrote:
From a96b6e92fdeaa947bf32774c425419b8f987b8e2 Mon Sep 17 00:00:00 2001
From: Heikki Linnakangas <heikki.linnakan...@iki.fi>
Date: Thu, 30 Nov 2023 00:01:25 +0200
Subject: [PATCH v3 1/7] Refactor CreateSharedMemoryAndSemaphores
For clarity, have separate functions for *creating* the shared memory
and semaphores at postmaster or single-user backend startup, and
for *attaching* to existing shared memory structures in EXEC_BACKEND
case. CreateSharedMemoryAndSemaphores() is now called only at
postmaster startup, and a new AttachSharedMemoryStructs() function is
called at backend startup in EXEC_BACKEND mode.
I assume CreateSharedMemoryAndSemaphores() is still called during crash
restart?
Yes.
I wonder if it shouldn't split three ways:
1) create
2) initialize
3) attach
Why? What would be the difference between create and initialize phases?
--
Heikki Linnakangas
Neon (https://neon.tech)
