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Use dlists instead of SHM_QUEUE for syncrep queue

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Part of a series to remove SHM_QUEUE. ilist.h style lists are more widely used
and have an easier to use interface.

Reviewed-by: Thomas Munro <thomas.munro@gmail.com> (in an older version)
Discussion: https://postgr.es/m/20221120055930.t6kl3tyivzhlrzu2@awork3.anarazel.de
Discussion: https://postgr.es/m/20200211042229.msv23badgqljrdg2@alap3.anarazel.de
This commit is contained in:
Andres Freund
2023-01-18 12:15:05 -08:00
parent 5764f611e1
commit 12605414a7
5 changed files with 41 additions and 57 deletions
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src/include/storage/proc.h
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@@ -248,7 +248,7 @@ struct PGPROC
*/
XLogRecPtr waitLSN; /* waiting for this LSN or higher */
int syncRepState; /* wait state for sync rep */
SHM_QUEUE syncRepLinks; /* list link if process is in syncrep queue */
dlist_node syncRepLinks; /* list link if process is in syncrep queue */
/*
* All PROCLOCK objects for locks held or awaited by this backend are