7 * Userspace RCU header, "bulletproof" version.
9 * Slower RCU read-side adapted for tracing library. Does not require thread
10 * registration nor unregistration. Also signal-safe.
12 * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
13 * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
15 * LGPL-compatible code should include this header with :
17 * #define _LGPL_SOURCE
20 * This library is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU Lesser General Public
22 * License as published by the Free Software Foundation; either
23 * version 2.1 of the License, or (at your option) any later version.
25 * This library is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28 * Lesser General Public License for more details.
30 * You should have received a copy of the GNU Lesser General Public
31 * License along with this library; if not, write to the Free Software
32 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
34 * IBM's contributions to this file may be relicensed under LGPLv2 or later.
41 * See urcu-pointer.h and urcu-pointer-static.h for pointer publication headers.
43 #include <urcu-pointer.h>
52 * Each thread containing read-side critical sections must be registered
53 * with rcu_register_thread() before calling rcu_read_lock().
54 * rcu_unregister_thread() should be called before the thread exits.
59 #include <urcu-bp-static.h>
62 * Mappings for static use of the userspace RCU library.
63 * Should only be used in LGPL-compatible code.
70 * Mark the beginning and end of a read-side critical section.
72 #define rcu_read_lock() _rcu_read_lock()
73 #define rcu_read_unlock() _rcu_read_unlock()
75 #else /* !_LGPL_SOURCE */
78 * library wrappers to be used by non-LGPL compatible source code.
79 * See LGPL-only urcu-pointer-static.h for documentation.
82 extern void rcu_read_lock(void);
83 extern void rcu_read_unlock(void);
85 #endif /* !_LGPL_SOURCE */
87 extern void synchronize_rcu(void);
90 * In the bulletproof version, the following functions are no-ops.
92 static inline void rcu_register_thread(void)
96 static inline void rcu_unregister_thread(void)
100 static inline void rcu_init(void)
108 #endif /* _URCU_BP_H */
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