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#ifndef _URCU_H
#define _URCU_H
/*
* urcu.h
*
* Userspace RCU header
*
* Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
* Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
*
* LGPL-compatible code should include this header with :
*
* #define _LGPL_SOURCE
* #include <urcu.h>
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* IBM's contributions to this file may be relicensed under LGPLv2 or later.
*/
#include <stdlib.h>
#include <pthread.h>
/*
* See urcu-pointer.h and urcu-pointer-static.h for pointer publication headers.
*/
#include <urcu-pointer.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Important !
*
* Each thread containing read-side critical sections must be registered
* with rcu_register_thread() before calling rcu_read_lock().
* rcu_unregister_thread() should be called before the thread exits.
*/
#ifdef _LGPL_SOURCE
#include <urcu-static.h>
/*
* Mappings for static use of the userspace RCU library.
* Should only be used in LGPL-compatible code.
*/
/*
* rcu_read_lock()
* rcu_read_unlock()
*
* Mark the beginning and end of a read-side critical section.
* DON'T FORGET TO USE RCU_REGISTER/UNREGISTER_THREAD() FOR EACH THREAD WITH
* READ-SIDE CRITICAL SECTION.
*/
#define rcu_read_lock() _rcu_read_lock()
#define rcu_read_unlock() _rcu_read_unlock()
#else /* !_LGPL_SOURCE */
/*
* library wrappers to be used by non-LGPL compatible source code.
* See LGPL-only urcu-pointer-static.h for documentation.
*/
extern void rcu_read_lock(void);
extern void rcu_read_unlock(void);
#endif /* !_LGPL_SOURCE */
extern void synchronize_rcu(void);
/*
* Reader thread registration.
*/
extern void rcu_register_thread(void);
extern void rcu_unregister_thread(void);
/*
* Explicit rcu initialization, for "early" use within library constructors.
*/
extern void rcu_init(void);
#ifdef __cplusplus
}
#endif
#endif /* _URCU_H */
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