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Refactor inCommit flag into generic delayChkpt flag.

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Rename PGXACT->inCommit flag into delayChkpt flag,
and generalise comments to allow use in other situations,
such as the forthcoming potential use in checksum patch.
Replace wait loop to look for VXIDs with delayChkpt set.
No user visible changes, not behaviour changes at present.

Simon Riggs, reviewed and rebased by Jeff Davis
This commit is contained in:
Simon Riggs
2012-12-03 13:13:53 +00:00
parent 7a764990d8
commit f21bb9cfb5
7 changed files with 89 additions and 73 deletions
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4
src/backend/storage/lmgr/proc.c
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@@ -350,7 +350,7 @@ InitProcess(void)
MyProc->backendId = InvalidBackendId;
MyProc->databaseId = InvalidOid;
MyProc->roleId = InvalidOid;
MyPgXact->inCommit = false;
MyPgXact->delayChkpt = false;
MyPgXact->vacuumFlags = 0;
/* NB -- autovac launcher intentionally does not set IS_AUTOVACUUM */
if (IsAutoVacuumWorkerProcess())
@@ -516,7 +516,7 @@ InitAuxiliaryProcess(void)
MyProc->backendId = InvalidBackendId;
MyProc->databaseId = InvalidOid;
MyProc->roleId = InvalidOid;
MyPgXact->inCommit = false;
MyPgXact->delayChkpt = false;
MyPgXact->vacuumFlags = 0;
MyProc->lwWaiting = false;
MyProc->lwWaitMode = 0;