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int gnutls_global_init( void);
This function performs any required precalculations, detects the sup-
ported 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.
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 could lead to a memory leak or even
a crash. To handle this, your application should invoke this function
after aquiring a thread mutex.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
error code is returned.
Report bugs to <email@example.com>.
Home page: http://www.gnutls.org
Copyright (C) 2001-2014 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.
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