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pgindent run for 9.6

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This commit is contained in:
Robert Haas
2016-06-09 18:02:36 -04:00
parent 9164deea2f
commit 4bc424b968
252 changed files with 2670 additions and 2558 deletions
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61
src/backend/utils/time/snapmgr.c
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@ -78,16 +78,15 @@ typedef struct OldSnapshotControlData
* Variables for old snapshot handling are shared among processes and are
* only allowed to move forward.
*/
slock_t mutex_current; /* protect current_timestamp */
slock_t mutex_current; /* protect current_timestamp */
int64 current_timestamp; /* latest snapshot timestamp */
slock_t mutex_latest_xmin; /* protect latest_xmin
* and next_map_update
*/
TransactionId latest_xmin; /* latest snapshot xmin */
int64 next_map_update; /* latest snapshot valid up to */
slock_t mutex_threshold; /* protect threshold fields */
slock_t mutex_latest_xmin; /* protect latest_xmin and
* next_map_update */
TransactionId latest_xmin; /* latest snapshot xmin */
int64 next_map_update; /* latest snapshot valid up to */
slock_t mutex_threshold; /* protect threshold fields */
int64 threshold_timestamp; /* earlier snapshot is old */
TransactionId threshold_xid; /* earlier xid may be gone */
TransactionId threshold_xid; /* earlier xid may be gone */
/*
* Keep one xid per minute for old snapshot error handling.
@ -117,11 +116,11 @@ typedef struct OldSnapshotControlData
*
* Persistence is not needed.
*/
int head_offset; /* subscript of oldest tracked time */
int64 head_timestamp; /* time corresponding to head xid */
int count_used; /* how many slots are in use */
int head_offset; /* subscript of oldest tracked time */
int64 head_timestamp; /* time corresponding to head xid */
int count_used; /* how many slots are in use */
TransactionId xid_by_minute[FLEXIBLE_ARRAY_MEMBER];
} OldSnapshotControlData;
} OldSnapshotControlData;
static volatile OldSnapshotControlData *oldSnapshotControl;
@ -709,8 +708,8 @@ UpdateActiveSnapshotCommandId(void)
/*
* Don't allow modification of the active snapshot during parallel
* operation. We share the snapshot to worker backends at the beginning of
* parallel operation, so any change to the snapshot can lead to
* operation. We share the snapshot to worker backends at the beginning
* of parallel operation, so any change to the snapshot can lead to
* inconsistencies. We have other defenses against
* CommandCounterIncrement, but there are a few places that call this
* directly, so we put an additional guard here.
@ -1634,7 +1633,7 @@ TransactionIdLimitedForOldSnapshots(TransactionId recentXmin,
}
ts = AlignTimestampToMinuteBoundary(ts)
- (old_snapshot_threshold * USECS_PER_MINUTE);
- (old_snapshot_threshold * USECS_PER_MINUTE);
/* Check for fast exit without LW locking. */
SpinLockAcquire(&oldSnapshotControl->mutex_threshold);
@ -1660,14 +1659,14 @@ TransactionIdLimitedForOldSnapshots(TransactionId recentXmin,
if (oldSnapshotControl->count_used > 0
&& ts >= oldSnapshotControl->head_timestamp)
{
int offset;
int offset;
offset = ((ts - oldSnapshotControl->head_timestamp)
/ USECS_PER_MINUTE);
if (offset > oldSnapshotControl->count_used - 1)
offset = oldSnapshotControl->count_used - 1;
offset = (oldSnapshotControl->head_offset + offset)
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
xlimit = oldSnapshotControl->xid_by_minute[offset];
if (NormalTransactionIdFollows(xlimit, recentXmin))
@ -1715,8 +1714,8 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
ts = AlignTimestampToMinuteBoundary(whenTaken);
/*
* Keep track of the latest xmin seen by any process. Update mapping
* with a new value when we have crossed a bucket boundary.
* Keep track of the latest xmin seen by any process. Update mapping with
* a new value when we have crossed a bucket boundary.
*/
SpinLockAcquire(&oldSnapshotControl->mutex_latest_xmin);
latest_xmin = oldSnapshotControl->latest_xmin;
@ -1747,7 +1746,7 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
if (whenTaken < 0)
{
elog(DEBUG1,
"MaintainOldSnapshotTimeMapping called with negative whenTaken = %ld",
"MaintainOldSnapshotTimeMapping called with negative whenTaken = %ld",
(long) whenTaken);
return;
}
@ -1789,10 +1788,10 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
* USECS_PER_MINUTE)))
{
/* existing mapping; advance xid if possible */
int bucket = (oldSnapshotControl->head_offset
+ ((ts - oldSnapshotControl->head_timestamp)
/ USECS_PER_MINUTE))
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
int bucket = (oldSnapshotControl->head_offset
+ ((ts - oldSnapshotControl->head_timestamp)
/ USECS_PER_MINUTE))
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
if (TransactionIdPrecedes(oldSnapshotControl->xid_by_minute[bucket], xmin))
oldSnapshotControl->xid_by_minute[bucket] = xmin;
@ -1800,8 +1799,8 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
else
{
/* We need a new bucket, but it might not be the very next one. */
int advance = ((ts - oldSnapshotControl->head_timestamp)
/ USECS_PER_MINUTE);
int advance = ((ts - oldSnapshotControl->head_timestamp)
/ USECS_PER_MINUTE);
oldSnapshotControl->head_timestamp = ts;
@ -1815,14 +1814,14 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
else
{
/* Store the new value in one or more buckets. */
int i;
int i;
for (i = 0; i < advance; i++)
{
if (oldSnapshotControl->count_used == OLD_SNAPSHOT_TIME_MAP_ENTRIES)
{
/* Map full and new value replaces old head. */
int old_head = oldSnapshotControl->head_offset;
int old_head = oldSnapshotControl->head_offset;
if (old_head == (OLD_SNAPSHOT_TIME_MAP_ENTRIES - 1))
oldSnapshotControl->head_offset = 0;
@ -1833,9 +1832,9 @@ MaintainOldSnapshotTimeMapping(int64 whenTaken, TransactionId xmin)
else
{
/* Extend map to unused entry. */
int new_tail = (oldSnapshotControl->head_offset
+ oldSnapshotControl->count_used)
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
int new_tail = (oldSnapshotControl->head_offset
+ oldSnapshotControl->count_used)
% OLD_SNAPSHOT_TIME_MAP_ENTRIES;
oldSnapshotControl->count_used++;
oldSnapshotControl->xid_by_minute[new_tail] = xmin;