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Phase 2 of pgindent updates.

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Change pg_bsd_indent to follow upstream rules for placement of comments
to the right of code, and remove pgindent hack that caused comments
following #endif to not obey the general rule.

Commit e3860ffa4d wasn't actually using
the published version of pg_bsd_indent, but a hacked-up version that
tried to minimize the amount of movement of comments to the right of
code.  The situation of interest is where such a comment has to be
moved to the right of its default placement at column 33 because there's
code there.  BSD indent has always moved right in units of tab stops
in such cases --- but in the previous incarnation, indent was working
in 8-space tab stops, while now it knows we use 4-space tabs.  So the
net result is that in about half the cases, such comments are placed
one tab stop left of before.  This is better all around: it leaves
more room on the line for comment text, and it means that in such
cases the comment uniformly starts at the next 4-space tab stop after
the code, rather than sometimes one and sometimes two tabs after.

Also, ensure that comments following #endif are indented the same
as comments following other preprocessor commands such as #else.
That inconsistency turns out to have been self-inflicted damage
from a poorly-thought-through post-indent "fixup" in pgindent.

This patch is much less interesting than the first round of indent
changes, but also bulkier, so I thought it best to separate the effects.

Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org
Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
This commit is contained in:
Tom Lane
2017-06-21 15:18:54 -04:00
parent f669c09989
commit c7b8998ebb
1107 changed files with 3433 additions and 3514 deletions
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7
src/backend/utils/time/snapmgr.c
View File

@@ -72,7 +72,7 @@
/*
* GUC parameters
*/
int old_snapshot_threshold; /* number of minutes, -1 disables */
int old_snapshot_threshold; /* number of minutes, -1 disables */
/*
* Structure for dealing with old_snapshot_threshold implementation.
@@ -84,9 +84,8 @@ typedef struct OldSnapshotControlData
* only allowed to move forward.
*/
slock_t mutex_current; /* protect current_timestamp */
TimestampTz current_timestamp; /* latest snapshot timestamp */
slock_t mutex_latest_xmin; /* protect latest_xmin and
* next_map_update */
TimestampTz current_timestamp; /* latest snapshot timestamp */
slock_t mutex_latest_xmin; /* protect latest_xmin and next_map_update */
TransactionId latest_xmin; /* latest snapshot xmin */
TimestampTz next_map_update; /* latest snapshot valid up to */
slock_t mutex_threshold; /* protect threshold fields */