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From Paul Querna <>
Subject Re: Creating a thread safe module and the problem of calling of 'CRYPTO_set_locking_callback' twice!
Date Wed, 06 Dec 2006 17:15:15 GMT
Justin Erenkrantz wrote:
> On 12/6/06, Frank <> wrote:
>> My question is: How does this interfere with my module? How can I ensure
>> that only one of us (mod_ssl or my module) is calling these both
>> functions? I cannot believe that there is no problem when my module
> You just can't.  I wish there was a better answer but there isn't,
> AFAIK.  You might get lucky, but yah you're going to run into
> nastiness with OpenSSL's global contexts.  =(  -- justin

There is always GnuTLS (or other SSL libraries) which don't have the
global context problems:

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