Re: Avoid resource leak (src/test/regress/pg_regress.c)

Em sex., 24 de out. de 2025 às 09:21, Álvaro Herrera <alvherre(at)kurilemu(dot)de>
escreveu:

> On 2025-Oct-24, Ranier Vilela wrote:
>
> > Em sex., 24 de out. de 2025 às 03:03, Michael Paquier
> > <michael(at)paquier(dot)xyz> escreveu:
>
> > > This is just one of them, allocated in the context of what is a
> > > short-term execution.
> >
> > In this case, I believe pg_regress is run, thousands of times, on
> > hundreds of computers.
>
> Yes, but the memory is released at the end of the program execution,
> every single one of those times.
>
Yeah, for sure.
But not before thousands of tests were carried out.

The allocated memory is useless until the program exits.
According to getaddrinfo documentation:
"The *getaddrinfo*() function allocates and initializes a linked list

of *addrinfo* structures, one for each network address that matches
*node* and *service*, subject to any restrictions imposed by *hints*,
and returns a pointer to the start of the list in *res*. The items
in the linked list are linked by the *ai_next* field.

There are several reasons why the linked list may have more than
one *addrinfo* structure, including: the network host is multihomed,
accessible over multiple protocols"

best regards
Ranier Vilela