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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
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17
src/backend/replication/walsender.c
View File

@ -402,7 +402,7 @@ IdentifySystem(void)
TupOutputState *tstate;
TupleDesc tupdesc;
Datum values[4];
bool nulls[4];
bool nulls[4] = {0};
TimeLineID currTLI;
/*
@ -437,7 +437,6 @@ IdentifySystem(void)
}
dest = CreateDestReceiver(DestRemoteSimple);
MemSet(nulls, false, sizeof(nulls));
/* need a tuple descriptor representing four columns */
tupdesc = CreateTemplateTupleDesc(4);
@ -483,7 +482,7 @@ ReadReplicationSlot(ReadReplicationSlotCmd *cmd)
DestReceiver *dest;
TupOutputState *tstate;
TupleDesc tupdesc;
Datum values[READ_REPLICATION_SLOT_COLS];
Datum values[READ_REPLICATION_SLOT_COLS] = {0};
bool nulls[READ_REPLICATION_SLOT_COLS];
tupdesc = CreateTemplateTupleDesc(READ_REPLICATION_SLOT_COLS);
@ -495,8 +494,7 @@ ReadReplicationSlot(ReadReplicationSlotCmd *cmd)
TupleDescInitBuiltinEntry(tupdesc, (AttrNumber) 3, "restart_tli",
INT8OID, -1, 0);
MemSet(values, 0, READ_REPLICATION_SLOT_COLS * sizeof(Datum));
MemSet(nulls, true, READ_REPLICATION_SLOT_COLS * sizeof(bool));
memset(nulls, true, READ_REPLICATION_SLOT_COLS * sizeof(bool));
LWLockAcquire(ReplicationSlotControlLock, LW_SHARED);
slot = SearchNamedReplicationSlot(cmd->slotname, false);
@ -859,13 +857,12 @@ StartReplication(StartReplicationCmd *cmd)
TupOutputState *tstate;
TupleDesc tupdesc;
Datum values[2];
bool nulls[2];
bool nulls[2] = {0};
snprintf(startpos_str, sizeof(startpos_str), "%X/%X",
LSN_FORMAT_ARGS(sendTimeLineValidUpto));
dest = CreateDestReceiver(DestRemoteSimple);
MemSet(nulls, false, sizeof(nulls));
/*
* Need a tuple descriptor representing two columns. int8 may seem
@ -1043,7 +1040,7 @@ CreateReplicationSlot(CreateReplicationSlotCmd *cmd)
TupOutputState *tstate;
TupleDesc tupdesc;
Datum values[4];
bool nulls[4];
bool nulls[4] = {0};
Assert(!MyReplicationSlot);
@ -1178,7 +1175,6 @@ CreateReplicationSlot(CreateReplicationSlotCmd *cmd)
LSN_FORMAT_ARGS(MyReplicationSlot->data.confirmed_flush));
dest = CreateDestReceiver(DestRemoteSimple);
MemSet(nulls, false, sizeof(nulls));
/*----------
* Need a tuple descriptor representing four columns:
@ -3488,7 +3484,7 @@ pg_stat_get_wal_senders(PG_FUNCTION_ARGS)
TimestampTz replyTime;
bool is_sync_standby;
Datum values[PG_STAT_GET_WAL_SENDERS_COLS];
bool nulls[PG_STAT_GET_WAL_SENDERS_COLS];
bool nulls[PG_STAT_GET_WAL_SENDERS_COLS] = {0};
int j;
/* Collect data from shared memory */
@ -3527,7 +3523,6 @@ pg_stat_get_wal_senders(PG_FUNCTION_ARGS)
}
}
memset(nulls, 0, sizeof(nulls));
values[0] = Int32GetDatum(pid);
if (!has_privs_of_role(GetUserId(), ROLE_PG_READ_ALL_STATS))