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mirror of https://github.com/postgres/postgres.git synced 2025-08-27 07:42:10 +03:00
Michael Paquier b2b023aa37 injection_points: Add initialization of shmem state when loading module
This commits adds callbacks to initialize the shared memory state of the
module when loaded with shared_preload_libraries.  This is necessary to
be able to update the test introduced in 768a9fd553 to use the macros
INJECTION_POINT_{LOAD,CACHED}() rather than a SQL function in the module
injection_points forcing a load, as this test runs a callback in a
critical section where no memory allocation should happen.

Initializing the shared memory state of the module while loading
provides a strict control on the timing of its allocation.  If the
module is not loaded at startup, it will use a GetNamedDSMSegment()
instead to initialize its shmem state on-the-fly.

Per discussion with Álvaro Herrera.

Author: Michael Paquier
Discussion: https://postgr.es/m/ZsUnJUlSOBNAzwW1@paquier.xyz
2024-08-23 10:12:58 +09:00
2019-12-18 09:13:13 +01:00
2022-12-04 15:23:00 -05:00
2024-01-03 20:49:05 -05:00
2020-02-10 20:47:50 +01:00
2024-02-28 15:17:23 +04:00

PostgreSQL Database Management System

This directory contains the source code distribution of the PostgreSQL database management system.

PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.

Description
Зеркало официального репозитория PostgreSQL GIT
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