Update call-rcu.h and defer.h comments and include guards
[urcu.git] / include / urcu / defer.h
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1#ifndef _URCU_DEFER_H
2#define _URCU_DEFER_H
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3
4/*
89d19b43 5 * urcu/defer.h
90075a50 6 *
786ee85b 7 * Userspace RCU header - deferred execution
90075a50 8 *
6982d6d7 9 * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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10 * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
11 *
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12 * This header is meant to be included indirectly through a liburcu
13 * flavor header.
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14 *
15 * This library is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU Lesser General Public
17 * License as published by the Free Software Foundation; either
18 * version 2.1 of the License, or (at your option) any later version.
19 *
20 * This library is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 * Lesser General Public License for more details.
24 *
25 * You should have received a copy of the GNU Lesser General Public
26 * License along with this library; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 */
29
30#include <stdlib.h>
31#include <pthread.h>
32
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33#ifdef __cplusplus
34extern "C" {
35#endif
36
90075a50 37/*
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38 * Note: the defer_rcu() API is currently EXPERIMENTAL. It may change in the
39 * future.
67ecffc0 40 *
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41 * Important !
42 *
43 * Each thread queuing memory reclamation must be registered with
786ee85b 44 * rcu_defer_register_thread(). rcu_defer_unregister_thread() should be
90075a50 45 * called before the thread exits.
8a13058c 46 *
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47 * *NEVER* use defer_rcu() within a RCU read-side critical section, because this
48 * primitive need to call synchronize_rcu() if the thread queue is full.
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49 */
50
3614f13c 51extern void defer_rcu(void (*fct)(void *p), void *p);
2c22932b 52
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53/*
54 * Thread registration for reclamation.
55 */
7fdbbd61 56extern int rcu_defer_register_thread(void);
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57extern void rcu_defer_unregister_thread(void);
58extern void rcu_defer_barrier(void);
59extern void rcu_defer_barrier_thread(void);
90075a50 60
67ecffc0 61#ifdef __cplusplus
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62}
63#endif
64
89d19b43 65#endif /* _URCU_DEFER_H */
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