CentOS 7.0 - man page for gnutls_global_init (centos section 3)
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gnutls_global_init(3) gnutls gnutls_global_init(3)
gnutls_global_init - API function
int gnutls_global_init( void);
This function initializes the global data to defaults. In order to free resources you may
call gnutls_global_deinit() when gnutls usage is no longer needed.
Note that this function will also initialize the underlying crypto backend, if it has not
been initialized before.
This function increments a global counter, so that gnutls_global_deinit() only releases
resources when it has been called as many times as gnutls_global_init(). This is useful
when GnuTLS is used by more than one library in an application. This function can be
called many times, but will only do something the first time.
Note! This function is not thread safe. If two threads call this function simultane-
ously, they can cause a race between checking the global counter and incrementing it,
causing both threads to execute the library initialization code. That would lead to a
memory leak. To handle this, your application could invoke this function after aquiring a
thread mutex. To ignore the potential memory leak is also an option.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error code is returned.
Report bugs to <firstname.lastname@example.org>.
General guidelines for reporting bugs: http://www.gnu.org/gethelp/
GnuTLS home page: http://www.gnu.org/software/gnutls/
Copyright (C) 2012 Free Software Foundation, Inc..
Copying and distribution of this file, with or without modification, are permitted in any
medium without royalty provided the copyright notice and this notice are preserved.
The full documentation for gnutls is maintained as a Texinfo manual. If the info and
gnutls programs are properly installed at your site, the command
should give you access to the complete manual. As an alternative you may obtain the man-
gnutls 3.1.15 gnutls_global_init(3)
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