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Replace many MemSet calls with struct initialization

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This replaces all MemSet() calls with struct initialization where that
is easily and obviously possible.  (For example, some cases have to
worry about padding bits, so I left those.)

(The same could be done with appropriate memset() calls, but this
patch is part of an effort to phase out MemSet(), so it doesn't touch
memset() calls.)

Reviewed-by: Ranier Vilela <ranier.vf@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@alvh.no-ip.org>
Discussion: https://www.postgresql.org/message-id/9847b13c-b785-f4e2-75c3-12ec77a3b05c@enterprisedb.com
This commit is contained in:
Peter Eisentraut
2022-07-16 08:42:15 +02:00
parent c94ae9d827
commit 9fd45870c1
51 changed files with 200 additions and 468 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
contrib/pg_visibility/pg_visibility.c
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@ -75,7 +75,7 @@ pg_visibility_map(PG_FUNCTION_ARGS)
Buffer vmbuffer = InvalidBuffer;
TupleDesc tupdesc;
Datum values[2];
bool nulls[2];
bool nulls[2] = {0};
rel = relation_open(relid, AccessShareLock);
@ -88,7 +88,6 @@ pg_visibility_map(PG_FUNCTION_ARGS)
errmsg("invalid block number")));
tupdesc = pg_visibility_tupdesc(false, false);
MemSet(nulls, 0, sizeof(nulls));
mapbits = (int32) visibilitymap_get_status(rel, blkno, &vmbuffer);
if (vmbuffer != InvalidBuffer)
@ -117,7 +116,7 @@ pg_visibility(PG_FUNCTION_ARGS)
Page page;
TupleDesc tupdesc;
Datum values[3];
bool nulls[3];
bool nulls[3] = {0};
rel = relation_open(relid, AccessShareLock);
@ -130,7 +129,6 @@ pg_visibility(PG_FUNCTION_ARGS)
errmsg("invalid block number")));
tupdesc = pg_visibility_tupdesc(false, true);
MemSet(nulls, 0, sizeof(nulls));
mapbits = (int32) visibilitymap_get_status(rel, blkno, &vmbuffer);
if (vmbuffer != InvalidBuffer)
@ -188,10 +186,9 @@ pg_visibility_map_rel(PG_FUNCTION_ARGS)
if (info->next < info->count)
{
Datum values[3];
bool nulls[3];
bool nulls[3] = {0};
HeapTuple tuple;
MemSet(nulls, 0, sizeof(nulls));
values[0] = Int64GetDatum(info->next);
values[1] = BoolGetDatum((info->bits[info->next] & (1 << 0)) != 0);
values[2] = BoolGetDatum((info->bits[info->next] & (1 << 1)) != 0);
@ -233,10 +230,9 @@ pg_visibility_rel(PG_FUNCTION_ARGS)
if (info->next < info->count)
{
Datum values[4];
bool nulls[4];
bool nulls[4] = {0};
HeapTuple tuple;
MemSet(nulls, 0, sizeof(nulls));
values[0] = Int64GetDatum(info->next);
values[1] = BoolGetDatum((info->bits[info->next] & (1 << 0)) != 0);
values[2] = BoolGetDatum((info->bits[info->next] & (1 << 1)) != 0);
@ -266,7 +262,7 @@ pg_visibility_map_summary(PG_FUNCTION_ARGS)
int64 all_frozen = 0;
TupleDesc tupdesc;
Datum values[2];
bool nulls[2];
bool nulls[2] = {0};
rel = relation_open(relid, AccessShareLock);
@ -300,7 +296,6 @@ pg_visibility_map_summary(PG_FUNCTION_ARGS)
TupleDescInitEntry(tupdesc, (AttrNumber) 2, "all_frozen", INT8OID, -1, 0);
tupdesc = BlessTupleDesc(tupdesc);
MemSet(nulls, 0, sizeof(nulls));
values[0] = Int64GetDatum(all_visible);
values[1] = Int64GetDatum(all_frozen);