Chris Bamford <[EMAIL PROTECTED]>:
>> Do you provide mutexes to the library? For multi-threaded applications,
>> the following calls are required in initialization:
>>
>> CRYPTO_set_id_callback(id_callback);
>> CRYPTO_set_locking_callback(locking_callback);
> Hmmm. Please bear with me. I have tried to code around the need for
> serialisation of any kind because I'm trying to recreate a large
> number of simultaneous hits on this web server. I create one global
> SSL_CTX structure as a shared resource. I then launch the threads
> which all create their own SSL structures based on the global
> SSL_CTX structure. As this is a "read- only" access of the SSL_CTX
> structure, do I really need mutexes?
Yes. The various threads write to several shared data objects, such
as variables in the pseudo random number generator, reference counts
in various data structures (including that SSL_CTX), etc. If there
are no mutexes to synchronize access to all these shared data
structures, then things cannot be expected to work smoothly;
we cannot promise that the program will quickly crash, either,
but you should be surprised if it does.
______________________________________________________________________
OpenSSL Project http://www.openssl.org
Development Mailing List [EMAIL PROTECTED]
Automated List Manager [EMAIL PROTECTED]
