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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>1) Am I correct that I only need to call the SSL_library_init(); and SSL_load_error_strings(); once at the beginning of the program , and not at the beginning of each thread?<br><br><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Yes<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal>2) Should I be doing any other cleanup functions within the threads?<br><br><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><pre><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Yes, </span>ERR_remove_state()<o:p></o:p></pre><p class=MsoNormal><br>Should I be doing any other cleanup operations ?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Probably some of (before exiting main thread only) :<o:p></o:p></p><p class=MsoNormal> EVP_cleanup();<o:p></o:p></p><p class=MsoNormal> ERR_free_strings();<o:p></o:p></p><p class=MsoNormal> CRYPTO_cleanup_all_ex_data();<o:p></o:p></p><p class=MsoNormal> ENGINE_cleanup();<o:p></o:p></p><p class=MsoNormal> CONF_modules_unload( 1 );<o:p></o:p></p><p class=MsoNormal> CONF_modules_free();<o:p></o:p></p><p class=MsoNormal> sk_SSL_COMP_free( SSL_COMP_get_compression_methods());<o:p></o:p></p><p class=MsoNormal> RAND_cleanup(); <o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal>Hope it helps,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Michel.<span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> openssl-users [mailto:openssl-users-bounces@openssl.org] <b>De la part de</b> Avery A. Tarasov<br><b>Envoyé :</b> jeudi 22 janvier 2015 06:36<br><b>À :</b> openssl-users@openssl.org<br><b>Objet :</b> [openssl-users] Proper cleanup functions being called?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi All,<br><br>I am using OpenSSL 1.0.1l in Win32 environment. At the beginning of my program I call<br><br> SSL_library_init();<br> SSL_load_error_strings();<br><br>Those functions are only called once.<br><br>Then I have 3 threads which can't possibly be run at the same time due to mutexes I'm setting with WaitForSingleObject and ReleaseMutex. Those 3 threads use these functions below and all variables in those threads are local to the threads (e.g. no globals).<br><br>SSL_CTX_new<br>SSL_CTX_set_verify<br>SSL_CTX_set_cert_verify_callback<br>BIO_new_connect<br>BIO_do_connect<br>SSL_new<br>SSL_set_bio<br>SSL_get_peer_certificate<br>SSL_write<br>SSL_read<br>SSL_get_error<br><br><br>(cleanup functions.. if conditions used to prevent double frees, etc.)<br>X509_free<br>SSL_shutdown<br>SSL_free<br>BIO_free<br>SSL_CTX_free<br><br><br><br><br>My questions are the following:<br><br>1) Am I correct that I only need to call the SSL_library_init(); and SSL_load_error_strings(); once at the beginning of the program , and not at the beginning of each thread?<br>2) Should I be doing any other cleanup functions within the threads?<br><br>My program appears to work perfectly but a tool is complaining about memory leaks in _CRYPTO_malloc, _asn1_enc_save, _asn1_item_ex_d2i, _d2i_X509<br><br>Handle leaks<br><br>_shmem_winpthreads_grab<br>_pthread_register_pointer<br><br>In fact I get memory leaks reported if I just do SSL_library_init(); alone<br><br>Despite the reports of the leaks my program seems to run fine for days and stay consistent in memory used. But I'm feeling paranoid something just isn't quite right.<br><br>Should I be doing any other cleanup operations?<br><br>Thanks for the assistance.<br><br>Best Regards,<br><br>-Avery T.<o:p></o:p></p></div></body></html>