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Use an shmem_exit callback to remove backend from PMChildFlags on exit

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This seems nicer than having to duplicate the logic between
InitProcess() and ProcKill() for which child processes have a
PMChildFlags slot.

Move the MarkPostmasterChildActive() call earlier in InitProcess(),
out of the section protected by the spinlock.

Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
This commit is contained in:
Heikki Linnakangas
2024-10-08 15:06:34 +03:00
parent 85ec945b78
commit 2bbc261ddb
3 changed files with 27 additions and 31 deletions
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3
src/include/storage/pmsignal.h
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@ -73,8 +73,7 @@ extern QuitSignalReason GetQuitSignalReason(void);
extern int AssignPostmasterChildSlot(void);
extern bool ReleasePostmasterChildSlot(int slot);
extern bool IsPostmasterChildWalSender(int slot);
extern void MarkPostmasterChildActive(void);
extern void MarkPostmasterChildInactive(void);
extern void RegisterPostmasterChildActive(void);
extern void MarkPostmasterChildWalSender(void);
extern bool PostmasterIsAliveInternal(void);
extern void PostmasterDeathSignalInit(void);