gnutls_global_init(3)						      gnutls						     gnutls_global_init(3)

NAME

       gnutls_global_init - initialize the global data to defaults.

SYNOPSIS

       #include <gnutls/gnutls.h>

       int gnutls_global_init( void);

ARGUMENTS

	void

DESCRIPTION

       This  function initializes the global data to defaults.	Every gnutls application has a global data which holds common parameters shared by
       gnutls session structures.  You should call gnutls_global_deinit() when gnutls usage is no longer needed

       Note that this function will also initialize libgcrypt, if it has not been initialized before.  Thus if you  want  to  manually	initialize
       libgcrypt you must do it before calling this function.  This is useful in cases you want to disable libgcrypt's internal lockings etc.

       This  function  increment 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 simultaneously, 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.

RETURNS

       On success, GNUTLS_E_SUCCESS (zero) is returned, otherwise an error code is returned.

REPORTING BUGS

       Report  bugs  to  <bug-gnutls@gnu.org>.	 GnuTLS  home  page:  http://www.gnu.org/software/gnutls/  General  help   using   GNU	 software:
       http://www.gnu.org/gethelp/

COPYRIGHT

       Copyright (C) 2008 Free Software Foundation.
       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.

SEE ALSO

       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

	      info gnutls

       should give you access to the complete manual.

gnutls								       2.8.6						     gnutls_global_init(3)