From: Arunkumar Manickam Sent: Thursday, July 07, 2011 8:14 AM We are using openssl 1.0.0d in our multi threaded application. I would like to know when to set CRYPTO_set_locking_callback and when to set CRYPTO_set_dynlock_* callbacks
The openssl document says that *dyn* call backs are required to improve performance. From openssl code, it seems only e_chill engine is using them. Pls correct if I am wrong here. Is the application required to set all the callbacks or just CRYPTO_set_locking_callback and CRYPTO_THREADID_set_callback. Also if *dyn* callbacks are set, does the application still need to set CRYPTO_set_locking_callback and CRYPTO_THREADID_set_callback. Why not just do them all? It's quicker and easier than spending time worrying about which and whether to do, and won't do any harm.
