On Fri, Sep 24, 2010 at 06:11:31PM +0400, Dmitriy Igrishin wrote: > Hey Vladimir, > > > > 2010/9/24 Polyakov Vladimir <vvpolya...@gmail.com> > > > Program written in C using Libpq, which receives large files (BYTEA) > > has a memory leak. > > I need to free ALL of the used memory after each sql query. > > > > after each call PQclear() I drop the buffer: > > conn->inBuffer = realloc(conn->inBuffer, 8192); > > conn->inBufSize = 8192;
This is a known unsafe use of the realloc() function. If if fails to allocate memory, you just lost the conn->inBuffer, thus leaking memory in your own code. Fix this first, and then see if you still have the issue with memory leaks, because it's possible you're just leaking it with a bad realloc() idiom. > > > > It works, but .. > > I noticed that in some cases PQclear() does not clear the memory. > > This happens only when the program receives certain files... > > > > Why do you need realloc() after PQclear()? > > -- > Regards, > Dmitriy -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
