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Get rid of the former rather baroque mechanism for propagating the values

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of ThisStartUpID and RedoRecPtr into new backends.  It's a lot easier just
to make them all grab the values out of shared memory during startup.
This helps to decouple the postmaster from checkpoint execution, which I
need since I'm intending to let the bgwriter do it instead, and it also
fixes a bug in the Win32 port: ThisStartUpID wasn't getting propagated at
all AFAICS.  (Doesn't give me a lot of faith in the amount of testing that
port has gotten.)
This commit is contained in:
Tom Lane
2004-05-27 17:12:57 +00:00
parent bb44a7c525
commit 16974ee910
6 changed files with 38 additions and 59 deletions
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4
src/backend/access/heap/heapam.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.167 2004/05/20 15:07:30 tgl Exp $
* $PostgreSQL: pgsql/src/backend/access/heap/heapam.c,v 1.168 2004/05/27 17:12:37 tgl Exp $
*
*
* INTERFACE ROUTINES
@ -1902,7 +1902,7 @@ l3:
* XLOG stuff: no logging is required as long as we have no
* savepoints. For savepoints private log could be used...
*/
((PageHeader) BufferGetPage(*buffer))->pd_sui = ThisStartUpID;
PageSetSUI(BufferGetPage(*buffer), ThisStartUpID);
/* store transaction information of xact marking the tuple */
tuple->t_data->t_infomask &= ~(HEAP_XMAX_COMMITTED |