Re: [BUGS] [CHECKER] 4 memory leaks in Postgresql 7.4.2
От | Gaetano Mendola |
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Тема | Re: [BUGS] [CHECKER] 4 memory leaks in Postgresql 7.4.2 |
Дата | |
Msg-id | 40E9E234.2050402@bigfoot.com обсуждение исходный текст |
Ответ на | Re: [BUGS] [CHECKER] 4 memory leaks in Postgresql 7.4.2 (Alvaro Herrera <alvherre@dcc.uchile.cl>) |
Список | pgsql-hackers |
Alvaro Herrera wrote: > On Mon, Jul 05, 2004 at 05:13:23PM -0400, Bruce Momjian wrote: > >>Alvaro Herrera wrote: >> >>>On Sun, May 02, 2004 at 07:50:46PM -0400, Tom Lane wrote: >>> >>> >>>>It's entirely likely that ecpg's derivative of the backend's datetime >>>>modules contains lots and lots of memory leaks, since AFAIK the palloc >>>>infrastructure is not there in the ecpg environment :-(. >>> >>>I wonder why is this? Is there some limitation to using palloc outside >>>the backend itself? I ask because I have considered using it outside >>>Postgres several times (a consideration that has never materialized >>>yet), and I wonder if it needs something special to work. >> >>The semantics of palloc is that most stuff is freed on statement >>completion. In most cases, interfaces need different semantics so we >>haven't seen much need for making something like palloc available to >>clients. I can see ecpg using it in a few cases, and libpq too, but >>probably not enough to make it worthwhile. > > > Yes, I understand that part -- what I was talking about was not using > the code in the Pg interfaces, but in another software project which > also consists of a daemon that has several well defined "durations" of > objects. In that (as of yet unwritten) code, palloc would fit very > well. But does palloc depend on some other part of the Postgres code? > If you don't mind you can write your application in C++ and use a boost smartpointer: http://www.boost.org/libs/smart_ptr/smart_ptr.htm Regards Gaetano Mendola
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