projects / urcu.git / blame
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| 786ee85b MD |
1 | #ifndef _URCU_BATCH_H |
| 2 | #define _URCU_BATCH_H | |
| 90075a50 MD |
3 | |
| 4 | /* | |
| 786ee85b | 5 | * urcu-defer.h |
| 90075a50 | 6 | * |
| 786ee85b | 7 | * Userspace RCU header - deferred execution |
| 90075a50 MD |
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 | /* | |
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36 | * Note: the defer_rcu() API is currently EXPERIMENTAL. It may change in the |
| 37 | * future. | |
| 38 | * | |
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39 | * Important ! |
| 40 | * | |
| 41 | * Each thread queuing memory reclamation must be registered with | |
| 786ee85b | 42 | * rcu_defer_register_thread(). rcu_defer_unregister_thread() should be |
| 90075a50 | 43 | * called before the thread exits. |
| 8a13058c | 44 | * |
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45 | * *NEVER* use defer_rcu() within a RCU read-side critical section, because this |
| 46 | * primitive need to call synchronize_rcu() if the thread queue is full. | |
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47 | */ |
| 48 | ||
| 3614f13c | 49 | extern void defer_rcu(void (*fct)(void *p), void *p); |
| 2c22932b | 50 | |
| 1ed9b677 MD |
51 | /* |
| 52 | * call_rcu will eventually be implemented with an API similar to the Linux | |
| 53 | * kernel call_rcu(), which will allow its use within RCU read-side C.S. | |
| 54 | * Generate an error if used for now. | |
| 55 | */ | |
| 56 | ||
| 57 | #define call_rcu __error_call_rcu_not_implemented_please_use_defer_rcu | |
| 58 | ||
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59 | /* |
| 60 | * Thread registration for reclamation. | |
| 61 | */ | |
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62 | extern void rcu_defer_register_thread(void); |
| 63 | extern void rcu_defer_unregister_thread(void); | |
| 64 | extern void rcu_defer_barrier(void); | |
| 65 | extern void rcu_defer_barrier_thread(void); | |
| 90075a50 | 66 | |
| 786ee85b | 67 | #endif /* _URCU_BATCH_H */ |