Функции API  (API function)
  
Имя (Name)
gnutls_global_init - API function
Синопсис (Synopsis)
#include <gnutls/gnutls.h>
       int gnutls_global_init( void);
Описание (Description)
Since GnuTLS 3.3.0 this function is no longer necessary to be
       explicitly called. To disable the implicit call (in a library
       constructor) of this function set the environment variable
       GNUTLS_NO_IMPLICIT_INIT to 1.
       This function performs any required precalculations, detects the
       supported CPU capabilities and initializes the underlying
       cryptographic backend. In order to free any resources taken by
       this call you should gnutls_global_deinit() when gnutls usage is
       no longer needed.
       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. It is thread safe since GnuTLS 3.3.0.
       A subsequent call of this function if the initial has failed will
       return the same error code.
Возвращаемое значение (Return value)
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a
       negative error code is returned.
Сообщение об ошибках (Reporting bugs)
Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org
Смотри также (See also)
The full documentation for gnutls is maintained as a Texinfo
       manual.  If the /usr/share/doc/gnutls/ directory does not contain
       the HTML form visit
       https://www.gnutls.org/manual/