Re: Help needed for the resolution of memory leak

[Merlin Moncure <mmoncure@xxxxxxxxx>]

On Mon, Jan 15, 2024 at 11:32 AM Sasmit Utkarsh <utkarshsasmit@xxxxxxxxx> wrote:

Hi Team,

I am trying to test a code which basically tries to read some data from postgresql db in a loop through a function SQL_get_tpf_rw() whose definition and other details are shared in the attached file along with the memory leak report resulted during testing. Could you let me know if i missed calling  anywhere PQclear()

in SQL_get_tpf_rw() which resulted in the below .

Last few lines from the report

yep:  for example,

      if (PQresultStatus(res) != PGRES_TUPLES_OK)   
        {
                LOG_ERROR("SELECT failed: %s", PQerrorMessage(conn));
		LOG_DEBUG("ROLLBACK TRANSACTION AND CHAIN");
		res = PQexec(conn,"ROLLBACK TRANSACTION AND CHAIN");
		LOG_ERROR("INVALID_FILE_ADDRESS %08X",fa);
		rc = ERR_INVALID_FILE_ADDRESS;

See highlighted bits.  You're reusing the res object before clearing it.  there may be other cases, but this jumped off the page.

merlin