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Remove obsolete XLogRecPtr macros

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This gets rid of XLByteLT, XLByteLE, XLByteEQ and XLByteAdvance.
These were useful for brevity when XLogRecPtrs were split in
xlogid/xrecoff; but now that they are simple uint64's, they are just
clutter.  The only downside to making this change would be ease of
backporting patches, but that has been negated by other substantive
changes to the involved code anyway.  The clarity of simpler expressions
makes the change worthwhile.

Most of the changes are mechanical, but in a couple of places, the patch
author chose to invert the operator sense, making the code flow more
logical (and more in line with preceding comments).

Author: Andres Freund
Eyeballed by Dimitri Fontaine and Alvaro Herrera
This commit is contained in:
Alvaro Herrera
2012-12-28 13:06:15 -03:00
parent 24eca7977e
commit 5ab3af46dd
20 changed files with 163 additions and 177 deletions
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12
src/backend/replication/syncrep.c
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@@ -120,7 +120,7 @@ SyncRepWaitForLSN(XLogRecPtr XactCommitLSN)
* be a low cost check.
*/
if (!WalSndCtl->sync_standbys_defined ||
XLByteLE(XactCommitLSN, WalSndCtl->lsn[mode]))
XactCommitLSN <= WalSndCtl->lsn[mode])
{
LWLockRelease(SyncRepLock);
return;
@@ -287,7 +287,7 @@ SyncRepQueueInsert(int mode)
* Stop at the queue element that we should after to ensure the queue
* is ordered by LSN.
*/
if (XLByteLT(proc->waitLSN, MyProc->waitLSN))
if (proc->waitLSN < MyProc->waitLSN)
break;
proc = (PGPROC *) SHMQueuePrev(&(WalSndCtl->SyncRepQueue[mode]),
@@ -428,12 +428,12 @@ SyncRepReleaseWaiters(void)
* Set the lsn first so that when we wake backends they will release up to
* this location.
*/
if (XLByteLT(walsndctl->lsn[SYNC_REP_WAIT_WRITE], MyWalSnd->write))
if (walsndctl->lsn[SYNC_REP_WAIT_WRITE] < MyWalSnd->write)
{
walsndctl->lsn[SYNC_REP_WAIT_WRITE] = MyWalSnd->write;
numwrite = SyncRepWakeQueue(false, SYNC_REP_WAIT_WRITE);
}
if (XLByteLT(walsndctl->lsn[SYNC_REP_WAIT_FLUSH], MyWalSnd->flush))
if (walsndctl->lsn[SYNC_REP_WAIT_FLUSH] < MyWalSnd->flush)
{
walsndctl->lsn[SYNC_REP_WAIT_FLUSH] = MyWalSnd->flush;
numflush = SyncRepWakeQueue(false, SYNC_REP_WAIT_FLUSH);
@@ -543,7 +543,7 @@ SyncRepWakeQueue(bool all, int mode)
/*
* Assume the queue is ordered by LSN
*/
if (!all && XLByteLT(walsndctl->lsn[mode], proc->waitLSN))
if (!all && walsndctl->lsn[mode] < proc->waitLSN)
return numprocs;
/*
@@ -640,7 +640,7 @@ SyncRepQueueIsOrderedByLSN(int mode)
* Check the queue is ordered by LSN and that multiple procs don't
* have matching LSNs
*/
if (XLByteLE(proc->waitLSN, lastLSN))
if (proc->waitLSN <= lastLSN)
return false;
lastLSN = proc->waitLSN;