postgres

Commit Graph

Author	SHA1	Message	Date
Heikki Linnakangas	d63d486d6c	Remove assertions that some compiler say are tautological To avoid the compiler warnings: launch_backend.c:211:39: warning: comparison of constant 16 with expression of type 'BackendType' (aka 'enum BackendType') is always true [-Wtautological-constant-out-of-range-compare] launch_backend.c:233:39: warning: comparison of constant 16 with expression of type 'BackendType' (aka 'enum BackendType') is always true [-Wtautological-constant-out-of-range-compare] The point of the assertions was to fail more explicitly if someone adds a new BackendType to the end of the enum, but forgets to add it to the child_process_kinds array. It was a pretty weak assertion to begin with, because it wouldn't catch if you added a new BackendType in the middle of the enum. So let's just remove it. Per buildfarm member ayu and a few others, spotted by Tom Lane. Discussion: https://www.postgresql.org/message-id/4119680.1710913067@sss.pgh.pa.us	2 years ago
Heikki Linnakangas	05c3980e7f	Move code for backend startup to separate file This is code that runs in the backend process after forking, rather than postmaster. Move it out of postmaster.c for clarity. Reviewed-by: Tristan Partin, Andres Freund Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi	2 years ago
Heikki Linnakangas	aafc05de1b	Refactor postmaster child process launching Introduce new postmaster_child_launch() function that deals with the differences in EXEC_BACKEND mode. Refactor the mechanism of passing information from the parent to child process. Instead of using different command-line arguments when launching the child process in EXEC_BACKEND mode, pass a variable-length blob of startup data along with all the global variables. The contents of that blob depend on the kind of child process being launched. In !EXEC_BACKEND mode, we use the same blob, but it's simply inherited from the parent to child process. Reviewed-by: Tristan Partin, Andres Freund Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi	2 years ago
Heikki Linnakangas	f1baed18bc	Move some functions from postmaster.c to a new source file This just moves the functions, with no other changes, to make the next commits smaller and easier to review. The moved functions are related to launching postmaster child processes in EXEC_BACKEND mode. Reviewed-by: Tristan Partin, Andres Freund Discussion: https://www.postgresql.org/message-id/7a59b073-5b5b-151e-7ed3-8b01ff7ce9ef@iki.fi	2 years ago

4 Commits (fbed6ebe41beb72d9b7978a414ed4e8515ed1b19)