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Rename ShmemVariableCache to TransamVariables

Browse Source 
The old name was misleading: It's not a cache, the values kept in the
struct are the authoritative source.

Reviewed-by: Tristan Partin, Richard Guo
Discussion: https://www.postgresql.org/message-id/6537d63d-4bb5-46f8-9b5d-73a8ba4720ab@iki.fi
This commit is contained in:
Heikki Linnakangas
2023-12-08 09:47:15 +02:00
parent 15916ffb04
commit b31ba5310b
18 changed files with 172 additions and 175 deletions
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6
src/backend/access/transam/clog.c
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@ -758,12 +758,12 @@ ZeroCLOGPage(int64 pageno, bool writeXlog)
/*
* This must be called ONCE during postmaster or standalone-backend startup,
* after StartupXLOG has initialized ShmemVariableCache->nextXid.
* after StartupXLOG has initialized TransamVariables->nextXid.
*/
void
StartupCLOG(void)
{
TransactionId xid = XidFromFullTransactionId(ShmemVariableCache->nextXid);
TransactionId xid = XidFromFullTransactionId(TransamVariables->nextXid);
int64 pageno = TransactionIdToPage(xid);
LWLockAcquire(XactSLRULock, LW_EXCLUSIVE);
@ -782,7 +782,7 @@ StartupCLOG(void)
void
TrimCLOG(void)
{
TransactionId xid = XidFromFullTransactionId(ShmemVariableCache->nextXid);
TransactionId xid = XidFromFullTransactionId(TransamVariables->nextXid);
int64 pageno = TransactionIdToPage(xid);
LWLockAcquire(XactSLRULock, LW_EXCLUSIVE);