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Improve some global variable declarations

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We have in launch_backend.c:

    /*
     * The following need to be available to the save/restore_backend_variables
     * functions.  They are marked NON_EXEC_STATIC in their home modules.
     */
    extern slock_t *ShmemLock;
    extern slock_t *ProcStructLock;
    extern PGPROC *AuxiliaryProcs;
    extern PMSignalData *PMSignalState;
    extern pg_time_t first_syslogger_file_time;
    extern struct bkend *ShmemBackendArray;
    extern bool redirection_done;

That comment is not completely true: ShmemLock, ShmemBackendArray, and
redirection_done are not in fact NON_EXEC_STATIC.  ShmemLock once was,
but was then needed elsewhere.  ShmemBackendArray was static inside
postmaster.c before launch_backend.c was created.  redirection_done
was never static.

This patch moves the declaration of ShmemLock and redirection_done to
a header file.

ShmemBackendArray gets a NON_EXEC_STATIC.  This doesn't make a
difference, since it only exists if EXEC_BACKEND anyway, but it makes
it consistent.

After that, the comment is now correct.

Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/flat/e0a62134-83da-4ba4-8cdb-ceb0111c95ce@eisentraut.org
This commit is contained in:
Peter Eisentraut
2024-07-02 06:55:56 +02:00
parent 881455e57b
commit 8f8bcb8883
7 changed files with 5 additions and 10 deletions
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2
src/backend/utils/error/elog.c
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@@ -95,8 +95,6 @@ ErrorContextCallback *error_context_stack = NULL;
sigjmp_buf *PG_exception_stack = NULL;
extern bool redirection_done;
/*
* Hook for intercepting messages before they are sent to the server log.
* Note that the hook will not get called for messages that are suppressed