[Opendnssec-user] Why C_Initialize calling differences?

Rickard Bellgrim rickard at opendnssec.org
Tue Jan 14 10:47:07 UTC 2014

Hi Jack

> While i see the processing associated with pInitArgs, i wanted to ask what
> use case the app programmer would want to call C_Initialise(pInitArgs) vs
> C_Initialize(NULL_PTR) ??

The documentation for PKCS#11 can be found here:

Details on C_Initialize() is found in section 11.4, page 102.

To summarize, using the argument NULL_PTR means that the application will
not access the library using multiple threads. Using a non NULL_PTR for
pInitArgs means that it will/can use multiple threads. The library will use
native OS mutex-handling or functions provided by the calling application,
depending on the contents of the pInitArgs.

// Rickard
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