Hello, Take a look at this example.
There is one program (let be it php interpreter) that is able to load external modules (so modules). Now we have two external modules - curl and postgresql [1]. Assume both curl and postgresql use external libraries (libcurl and libpq) that internally also use gnutls. Both these libraries initialize and deinitialize gnutls on it's own. Separately they work fine. Now it php loads them both at the same time then gnutls initialization happens twice (once called by curl module and second time by postgres module) and the same happens for deinitialization. In openssl for example double deinit causes segfault and is now allowed (a real problem with php + modules btw). How things look in gnutls? I assume init/deinit also can't be called multiple times safely, right? What can be done in such example to correctly handle gnutls requirements for init/deinit? There is only one important thing - the only place where you can do anything is php itself, curl and postgresql module but not in libcurl and libpq libraries. My guess is probably that nothing can be done without altering libcurl and libpq but even with modifications - does gnutls have api that would handle such situation in generic way? Some callbacks maybe... 1. In reality only curl is prepared to be used with gnutls but for sake of this example assume that postgresql module also uses gnutls. -- Arkadiusz Miśkiewicz PLD/Linux Team arekm / maven.pl http://ftp.pld-linux.org/ _______________________________________________ Help-gnutls mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gnutls
