Sparc64: complete and test implementation
[urcu.git] / urcu-defer.h
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1#ifndef _URCU_BATCH_H
2#define _URCU_BATCH_H
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3
4/*
786ee85b 5 * urcu-defer.h
90075a50 6 *
786ee85b 7 * Userspace RCU header - deferred execution
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8 *
9 * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
10 * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
11 *
12 * LGPL-compatible code should include this header with :
13 *
14 * #define _LGPL_SOURCE
786ee85b 15 * #include <urcu-defer.h>
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16 *
17 * This library is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU Lesser General Public
19 * License as published by the Free Software Foundation; either
20 * version 2.1 of the License, or (at your option) any later version.
21 *
22 * This library is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
25 * Lesser General Public License for more details.
26 *
27 * You should have received a copy of the GNU Lesser General Public
28 * License along with this library; if not, write to the Free Software
29 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
30 */
31
32#include <stdlib.h>
33#include <pthread.h>
34
35/*
36 * Important !
37 *
38 * Each thread queuing memory reclamation must be registered with
786ee85b 39 * rcu_defer_register_thread(). rcu_defer_unregister_thread() should be
90075a50 40 * called before the thread exits.
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41 *
42 * *NEVER* use call_rcu()/rcu_defer_queue() within a RCU read-side critical
43 * section, because this primitive need to call synchronize_rcu() if the thread
44 * queue is full.
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45 */
46
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47#define call_rcu rcu_defer_queue
48#define rcu_reclaim_queue(p) rcu_defer_queue(free, p)
49
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50extern void rcu_defer_queue(void (*fct)(void *p), void *p);
51
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52/*
53 * Thread registration for reclamation.
54 */
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55extern void rcu_defer_register_thread(void);
56extern void rcu_defer_unregister_thread(void);
57extern void rcu_defer_barrier(void);
58extern void rcu_defer_barrier_thread(void);
90075a50 59
786ee85b 60#endif /* _URCU_BATCH_H */
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