Help please.
I have a program/parent thread that launches 4 child threads. It's a
Win32 application that has to be linked using the /MT VC compiler option
for reasons other than OpenSSL. The parent thread calls the following
OpenSSL calls.
CRYPTO_malloc_init();
SSL_library_init();
SSL_load_error_strings();
RAND_seed();
ERR_free_strings();
Two of the 4 child threads make OpenSSL calls. One child thread is a
very simple single-threaded HTTPS web server. One child thread is a very
simple single-threaded HTTPS web browser.
As per the OpenSSL FAQ (http://www.openssl.org/support/faq.html#PROG1),
do I need to implement the CRYPTO_set_locking_callback() and
CRYPTO_set_id_callback() functions?
Quoted from the FAQ: "Multi-threaded applications must provide two
callback functions to OpenSSL by calling CRYPTO_set_locking_callback()
and CRYPTO_set_id_callback(). (For OpenSSL 0.9.9 or later, the new
function CRYPTO_set_idptr_callback() may be used in place of
CRYPTO_set_id_callback().) This is described in the threads(3) manpage."
I was thinking that since these child threads are not multi-threaded,
then I may not need to implement these functions? However, since I've
had to use the /MT option in VC and since the program/parent thread does
have children threads, then maybe I do?
NOTE: I am linking with the the non-static versions of libeay32MT.lib
and ssleay32MT.lib in MS Visual C++ v6.
In any case, does it hurt anything if I try to implement these two
OpenSSL functions anyway?
And, if it's quick and easy to do, can someone sent code snippets of
implementations of these two functions?
Thanks a million... again! Love this OpenSSL stuff!
Joe
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