void
extend_column_bindings(ARDFields *self, int num_columns)
{
CSTR func = "extend_column_bindings";
BindInfoClass *new_bindings;
int i;
mylog("%s: entering ... self=%p, bindings_allocated=%d, num_columns=%d\n", func, self, self->allocated, num_columns);
/*
* if we have too few, allocate room for more, and copy the old
* entries into the new structure
*/
if (self->allocated < num_columns)
{
new_bindings = create_empty_bindings(num_columns);
if (!new_bindings)
{
mylog("%s: unable to create %d new bindings from %d old bindings\n", func, num_columns, self->allocated);
if (self->bindings)
{
free(self->bindings);
self->bindings = NULL;
}
self->allocated = 0;
return;
}
if (self->bindings)
{
for (i = 0; i < self->allocated; i++)
new_bindings[i] = self->bindings[i];
free(self->bindings);
}
self->bindings = new_bindings;
self->allocated = num_columns;
}
/*
* There is no reason to zero out extra bindings if there are more
* than needed. If an app has allocated extra bindings, let it worry
* about it by unbinding those columns.
*/
/* SQLBindCol(1..) ... SQLBindCol(10...) # got 10 bindings */
/* SQLExecDirect(...) # returns 5 cols */
/* SQLExecDirect(...) # returns 10 cols (now OK) */
mylog("exit %s=%p\n", func, self->bindings);
}
void
extend_bindings(StatementClass *stmt, int num_columns)
{
static char* const func="extend_bindings";
BindInfoClass *new_bindings;
int i;
mylog("%s: entering ... stmt=%u, bindings_allocated=%d, num_columns=%d\n", func, stmt, stmt->bindings_allocated, num_columns);
/* if we have too few, allocate room for more, and copy the old */
/* entries into the new structure */
if(stmt->bindings_allocated < num_columns) {
new_bindings = create_empty_bindings(num_columns);
if ( ! new_bindings) {
mylog("%s: unable to create %d new bindings from %d old bindings\n", func, num_columns, stmt->bindings_allocated);
if (stmt->bindings) {
free(stmt->bindings);
stmt->bindings = NULL;
}
stmt->bindings_allocated = 0;
return;
}
if(stmt->bindings) {
for(i=0; i<stmt->bindings_allocated; i++)
new_bindings[i] = stmt->bindings[i];
free(stmt->bindings);
}
stmt->bindings = new_bindings;
stmt->bindings_allocated = num_columns;
}
/* There is no reason to zero out extra bindings if there are */
/* more than needed. If an app has allocated extra bindings, */
/* let it worry about it by unbinding those columns. */
/* SQLBindCol(1..) ... SQLBindCol(10...) # got 10 bindings */
/* SQLExecDirect(...) # returns 5 cols */
/* SQLExecDirect(...) # returns 10 cols (now OK) */
mylog("exit extend_bindings\n");
}
