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Man Pages


Manual Reference Pages  -  GNUTLS_GLOBAL_INIT (3)

NAME

gnutls_global_init - API function

CONTENTS

Synopsis
Arguments
Copyright

SYNOPSIS

#include <gnutls/gnutls.h>

int gnutls_global_init( void);

ARGUMENTS

void

DESCRIPTION

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.

Since GnuTLS 3.3.0 this function is automatically called on library constructor. Since the same version this function is also thread safe. The automatic initialization can be avoided if the environment variable GNUTLS_NO_EXPLICIT_INIT is set to be 1.

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

RETURNS

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

REPORTING BUGS

Report bugs to <bugs@gnutls.org>.
Home page: http://www.gnutls.org

COPYRIGHT

Copyright © 2001-2016 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

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
http://www.gnutls.org/manual/
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gnutls GNUTLS_GLOBAL_INIT (3) 3.4.9

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