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Standardize "WAL location" terminology

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Other previously used terms were "WAL position" or "log position".
This commit is contained in:
Peter Eisentraut
2017-05-12 13:51:27 -04:00
parent c1a7f64b4a
commit d496a65790
19 changed files with 62 additions and 62 deletions
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24
src/backend/replication/walsender.c
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@@ -194,7 +194,7 @@ static volatile sig_atomic_t replication_active = false;
static LogicalDecodingContext *logical_decoding_ctx = NULL;
static XLogRecPtr logical_startptr = InvalidXLogRecPtr;
/* A sample associating a log position with the time it was written. */
/* A sample associating a WAL location with the time it was written. */
typedef struct
{
XLogRecPtr lsn;
@@ -340,7 +340,7 @@ static void
IdentifySystem(void)
{
char sysid[32];
char xpos[MAXFNAMELEN];
char xloc[MAXFNAMELEN];
XLogRecPtr logptr;
char *dbname = NULL;
DestReceiver *dest;
@@ -367,7 +367,7 @@ IdentifySystem(void)
else
logptr = GetFlushRecPtr();
snprintf(xpos, sizeof(xpos), "%X/%X", (uint32) (logptr >> 32), (uint32) logptr);
snprintf(xloc, sizeof(xloc), "%X/%X", (uint32) (logptr >> 32), (uint32) logptr);
if (MyDatabaseId != InvalidOid)
{
@@ -406,8 +406,8 @@ IdentifySystem(void)
/* column 2: timeline */
values[1] = Int32GetDatum(ThisTimeLineID);
/* column 3: xlog position */
values[2] = CStringGetTextDatum(xpos);
/* column 3: wal location */
values[2] = CStringGetTextDatum(xloc);
/* column 4: database name, or NULL if none */
if (dbname)
@@ -842,7 +842,7 @@ static void
CreateReplicationSlot(CreateReplicationSlotCmd *cmd)
{
const char *snapshot_name = NULL;
char xpos[MAXFNAMELEN];
char xloc[MAXFNAMELEN];
char *slot_name;
bool reserve_wal = false;
CRSSnapshotAction snapshot_action = CRS_EXPORT_SNAPSHOT;
@@ -975,7 +975,7 @@ CreateReplicationSlot(CreateReplicationSlotCmd *cmd)
ReplicationSlotSave();
}
snprintf(xpos, sizeof(xpos), "%X/%X",
snprintf(xloc, sizeof(xloc), "%X/%X",
(uint32) (MyReplicationSlot->data.confirmed_flush >> 32),
(uint32) MyReplicationSlot->data.confirmed_flush);
@@ -1008,7 +1008,7 @@ CreateReplicationSlot(CreateReplicationSlotCmd *cmd)
values[0] = CStringGetTextDatum(slot_name);
/* consistent wal location */
values[1] = CStringGetTextDatum(xpos);
values[1] = CStringGetTextDatum(xloc);
/* snapshot name, or NULL if none */
if (snapshot_name != NULL)
@@ -1729,7 +1729,7 @@ PhysicalConfirmReceivedLocation(XLogRecPtr lsn)
}
/*
* Regular reply from standby advising of WAL positions on standby server.
* Regular reply from standby advising of WAL locations on standby server.
*/
static void
ProcessStandbyReplyMessage(void)
@@ -2579,7 +2579,7 @@ XLogSendPhysical(void)
/*
* Record the current system time as an approximation of the time at which
* this WAL position was written for the purposes of lag tracking.
* this WAL location was written for the purposes of lag tracking.
*
* In theory we could make XLogFlush() record a time in shmem whenever WAL
* is flushed and we could get that time as well as the LSN when we call
@@ -3353,7 +3353,7 @@ WalSndKeepaliveIfNecessary(TimestampTz now)
/*
* Record the end of the WAL and the time it was flushed locally, so that
* LagTrackerRead can compute the elapsed time (lag) when this WAL position is
* LagTrackerRead can compute the elapsed time (lag) when this WAL location is
* eventually reported to have been written, flushed and applied by the
* standby in a reply message.
*/
@@ -3410,7 +3410,7 @@ LagTrackerWrite(XLogRecPtr lsn, TimestampTz local_flush_time)
}
/*
* Find out how much time has elapsed between the moment WAL position 'lsn'
* Find out how much time has elapsed between the moment WAL location 'lsn'
* (or the highest known earlier LSN) was flushed locally and the time 'now'.
* We have a separate read head for each of the reported LSN locations we
* receive in replies from standby; 'head' controls which read head is