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/*
* Copyright (C) 2014 Red Hat
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
#ifndef ATFORK_H
#define ATFORK_H
#include <config.h>
#include <gnutls_int.h>
#ifndef _WIN32
/* API */
int _gnutls_register_fork_handler(void); /* global init */
/* Each user of the API that needs to be notified registers
* a pointer to an int */
void _gnutls_fork_set_val(unsigned int *val);
/*
* Each user, calls this function with the integer registered
* to check whether a fork is detected
*
* unsigned _gnutls_fork_detected(unsigned int *v);
*/
# if defined(HAVE___REGISTER_ATFORK) || defined(HAVE_PTHREAD_ATFORK)
inline static
unsigned _gnutls_fork_detected(unsigned int *v)
{
if (*v != 0) {
*v = 0;
return 1;
}
return 0;
}
# else
# include <unistd.h>
inline static
unsigned _gnutls_fork_detected(unsigned int *v)
{
if (getpid() != (pid_t)*v) {
*v = getpid();
return 1;
}
return 0;
}
# endif
#else /* _WIN32 */
# define _gnutls_fork_set_val() 0
# define _gnutls_register_fork_handler() 0
# define _gnutls_fork_detected(x) 0
#endif
#endif
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