gnutls_global_init(3) — Linux manual page


gnutls_global_init(3)              gnutls              gnutls_global_init(3)

NAME         top

       gnutls_global_init - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       int gnutls_global_init( void);

ARGUMENTS         top


DESCRIPTION         top

       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

       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

       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.

       A subsequent call of this function if the initial has failed will
       return the same error code.

RETURNS         top

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
       error code is returned.

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 Free Software Foundation, Inc., and others.
       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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-09-18.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                              3.6.9              gnutls_global_init(3)