Re: (ITS#4662) ldap_create needs lock?

[hyc@symas.com]

volz@cisco.com wrote:
> Full_Name: Bernie Volz
> Version: All
> OS: Linux
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (64.102.254.33)
> 
> 
> In ldap_create, if multiple threads are calling ldap_init (or one of the other
> initialization functions), they may compete to initialize the global options and
> this results in a segmentation fault.

> Shouldn't the above code be conditionalized on LDAP_R_COMPILE and use a static
> global mutex to assure that only one thread is testing and potentially
> initializing the global options.

Unfortunately static mutex initializers are non-portable. I guess for 
gcc we could arrange to have a constructor do the initialization, but 
it's not clear what we can do for the more general case.

-- 
   -- Howard Chu
   Chief Architect, Symas Corp.  http://www.symas.com
   Director, Highland Sun        http://highlandsun.com/hyc
   OpenLDAP Core Team            http://www.openldap.org/project/