On Mon, 6 May 2002, Aaron Bannert wrote: > On Mon, May 06, 2002 at 10:23:39AM -0300, Marc G. Fournier wrote: > > Just wondering if anyone has looked at (or does it already exist) > > creating a simple SysV SHM compatibility API, so that it 'plugs-n-plays' > > nicer with existing programs? > > APR's apr_shm.h API is really just for working with other APR apps. > If you want two processes to be able to map the same segment, they both > must use APR. What kind of functionality is missing?
This I understand, and it isn't a problem, since the only processes accessing 'shared memory' are child processes from the parent that originally creates it ... The issue that I have, and may be one that makes APR not usable, is that we don't to throw out the SysV shm* stuff that is in PgSQL, we want to extend the code so that *if* libapr.* is available, and the person compiling wishes to use it, they can ... so what I was planning on doing was making wrappers in the code so that: shmget became pg_shmget and pg_shmget had an #ifdef USE_APR <do this> #else <use normal shmget> #endif but the problem is that APRs args don't seem to map to shm*'s, which means I'd *really* have to hack the code to get it to work with APR ... unless I'm missing something?
