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Refactor WaitLSNType enum to use a macro for type count

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Change WAIT_LSN_TYPE_COUNT from an enum sentinel to a macro definition,
in a similar way to IOObject, IOContext, and BackendType enums.  Remove
explicit enum value assignments well.

Author: Xuneng Zhou <xunengzhou@gmail.com>
This commit is contained in:
Alexander Korotkov 2025-12-14 17:18:32 +02:00
parent c5ae07a90a
commit b27e48213f
2 changed files with 9 additions and 8 deletions
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10
src/backend/access/transam/xlogwait.c
View file

@ -126,7 +126,7 @@ updateMinWaitedLSN(WaitLSNType lsnType)
XLogRecPtr minWaitedLSN = PG_UINT64_MAX;
int i = (int) lsnType;
Assert(i >= 0 && i < (int) WAIT_LSN_TYPE_COUNT);
Assert(i >= 0 && i < WAIT_LSN_TYPE_COUNT);
if (!pairingheap_is_empty(&waitLSNState->waitersHeap[i]))
{
@ -147,7 +147,7 @@ addLSNWaiter(XLogRecPtr lsn, WaitLSNType lsnType)
WaitLSNProcInfo *procInfo = &waitLSNState->procInfos[MyProcNumber];
int i = (int) lsnType;
Assert(i >= 0 && i < (int) WAIT_LSN_TYPE_COUNT);
Assert(i >= 0 && i < WAIT_LSN_TYPE_COUNT);
LWLockAcquire(WaitLSNLock, LW_EXCLUSIVE);
@ -172,7 +172,7 @@ deleteLSNWaiter(WaitLSNType lsnType)
WaitLSNProcInfo *procInfo = &waitLSNState->procInfos[MyProcNumber];
int i = (int) lsnType;
Assert(i >= 0 && i < (int) WAIT_LSN_TYPE_COUNT);
Assert(i >= 0 && i < WAIT_LSN_TYPE_COUNT);
LWLockAcquire(WaitLSNLock, LW_EXCLUSIVE);
@ -213,7 +213,7 @@ wakeupWaiters(WaitLSNType lsnType, XLogRecPtr currentLSN)
int numWakeUpProcs;
int i = (int) lsnType;
Assert(i >= 0 && i < (int) WAIT_LSN_TYPE_COUNT);
Assert(i >= 0 && i < WAIT_LSN_TYPE_COUNT);
do
{
@ -270,7 +270,7 @@ WaitLSNWakeup(WaitLSNType lsnType, XLogRecPtr currentLSN)
{
int i = (int) lsnType;
Assert(i >= 0 && i < (int) WAIT_LSN_TYPE_COUNT);
Assert(i >= 0 && i < WAIT_LSN_TYPE_COUNT);
/*
* Fast path check. Skip if currentLSN is InvalidXLogRecPtr, which means

7
src/include/access/xlogwait.h
View file

@ -35,11 +35,12 @@ typedef enum
*/
typedef enum WaitLSNType
{
WAIT_LSN_TYPE_REPLAY = 0, /* Waiting for replay on standby */
WAIT_LSN_TYPE_FLUSH = 1, /* Waiting for flush on primary */
WAIT_LSN_TYPE_COUNT = 2
WAIT_LSN_TYPE_REPLAY, /* Waiting for replay on standby */
WAIT_LSN_TYPE_FLUSH, /* Waiting for flush on primary */
} WaitLSNType;
#define WAIT_LSN_TYPE_COUNT (WAIT_LSN_TYPE_FLUSH + 1)
/*
* WaitLSNProcInfo - the shared memory structure representing information
* about the single process, which may wait for LSN operations. An item of