Function pqWaitTimed

src/interfaces/libpq/fe-misc.c:1084–1102

* pqWaitTimed: wait, but not past finish_time. * * finish_time = ((time_t) -1) disables the wait limit. * * Returns -1 on failure, 0 if the socket is readable/writable, 1 if it timed out. */

 * Returns -1 on failure, 0 if the socket is readable/writable, 1 if it timed out.
 */
int
pqWaitTimed(int forRead, int forWrite, PGconn *conn, time_t finish_time)
{
	int			result;

	result = pqSocketCheck(conn, forRead, forWrite, finish_time);

	if (result < 0)
		return -1;				/* errorMessage is already set */

	if (result == 0)
	{
		appendPQExpBufferStr(&conn->errorMessage,
							 libpq_gettext("timeout expired\n"));
		return 1;
	}

	return 0;
}

/*
 * pgWaitTimeout: wait, but not past finish_time.