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Assorted examples of expanded type-safer palloc/pg_malloc API

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This adds some uses of the new palloc/pg_malloc variants here and
there as a demonstration and test.  This is kept separate from the
actual API patch, since the latter might be backpatched at some point.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/bb755632-2a43-d523-36f8-a1e7a389a907@enterprisedb.com
This commit is contained in:
Peter Eisentraut
2022-09-12 08:31:56 +02:00
parent 2016055a92
commit 5015e1e1b5
12 changed files with 90 additions and 111 deletions
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9
src/backend/tcop/postgres.c
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@ -1660,7 +1660,7 @@ exec_bind_message(StringInfo input_message)
numPFormats = pq_getmsgint(input_message, 2);
if (numPFormats > 0)
{
pformats = (int16 *) palloc(numPFormats * sizeof(int16));
pformats = palloc_array(int16, numPFormats);
for (int i = 0; i < numPFormats; i++)
pformats[i] = pq_getmsgint(input_message, 2);
}
@ -1848,8 +1848,7 @@ exec_bind_message(StringInfo input_message)
oldcxt = MemoryContextSwitchTo(MessageContext);
if (knownTextValues == NULL)
knownTextValues =
palloc0(numParams * sizeof(char *));
knownTextValues = palloc0_array(char *, numParams);
if (log_parameter_max_length_on_error < 0)
knownTextValues[paramno] = pstrdup(pstring);
@ -1958,7 +1957,7 @@ exec_bind_message(StringInfo input_message)
numRFormats = pq_getmsgint(input_message, 2);
if (numRFormats > 0)
{
rformats = (int16 *) palloc(numRFormats * sizeof(int16));
rformats = palloc_array(int16, numRFormats);
for (int i = 0; i < numRFormats; i++)
rformats[i] = pq_getmsgint(input_message, 2);
}
@ -4517,7 +4516,7 @@ PostgresMain(const char *dbname, const char *username)
numParams = pq_getmsgint(&input_message, 2);
if (numParams > 0)
{
paramTypes = (Oid *) palloc(numParams * sizeof(Oid));
paramTypes = palloc_array(Oid, numParams);
for (int i = 0; i < numParams; i++)
paramTypes[i] = pq_getmsgint(&input_message, 4);
}