projects / urcu.git / blame
| Commit | Line | Data |
|---|---|---|
| 27b012e2 MD |
1 | #ifndef _URCU_H |
| 2 | #define _URCU_H | |
| 3 | ||
| b257a10b MD |
4 | /* |
| 5 | * urcu.h | |
| 6 | * | |
| 7 | * Userspace RCU header | |
| 8 | * | |
| af02d47e MD |
9 | * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> |
| 10 | * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. | |
| 5e7e64b9 | 11 | * |
| 121a5d44 | 12 | * LGPL-compatible code should include this header with : |
| 5e7e64b9 | 13 | * |
| 121a5d44 MD |
14 | * #define _LGPL_SOURCE |
| 15 | * #include <urcu.h> | |
| 16 | * | |
| af02d47e MD |
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 | |
| 54843abc PM |
30 | * |
| 31 | * IBM's contributions to this file may be relicensed under LGPLv2 or later. | |
| b257a10b MD |
32 | */ |
| 33 | ||
| 1430ee0b | 34 | #include <stdlib.h> |
| 69a757c9 | 35 | #include <pthread.h> |
| 1430ee0b | 36 | |
| 121a5d44 | 37 | #ifdef _LGPL_SOURCE |
| b0d5e790 | 38 | |
| 121a5d44 | 39 | #include <urcu-static.h> |
| 3a86deba MD |
40 | |
| 41 | /* | |
| 121a5d44 MD |
42 | * Mappings for static use of the userspace RCU library. |
| 43 | * Should only be used in LGPL-compatible code. | |
| 3a86deba | 44 | */ |
| 3a86deba | 45 | |
| 121a5d44 MD |
46 | #define rcu_dereference _rcu_dereference |
| 47 | #define rcu_read_lock _rcu_read_lock | |
| 48 | #define rcu_read_unlock _rcu_read_unlock | |
| 41718ff9 | 49 | |
| 121a5d44 MD |
50 | #define rcu_assign_pointer _rcu_assign_pointer |
| 51 | #define rcu_xchg_pointer _rcu_xchg_pointer | |
| 52 | #define rcu_publish_content _rcu_publish_content | |
| 41718ff9 | 53 | |
| 121a5d44 | 54 | #else /* !_LGPL_SOURCE */ |
| 27b012e2 | 55 | |
| 40e140c9 | 56 | /* |
| 121a5d44 | 57 | * library wrappers to be used by non-LGPL compatible source code. |
| 40e140c9 | 58 | */ |
| cf380c2f | 59 | |
| 121a5d44 MD |
60 | extern void rcu_read_lock(void); |
| 61 | extern void rcu_read_unlock(void); | |
| cf380c2f | 62 | |
| 121a5d44 | 63 | extern void *rcu_dereference(void *p); |
| bb488185 | 64 | |
| 121a5d44 | 65 | extern void *rcu_assign_pointer_sym(void **p, void *v); |
| cf380c2f | 66 | |
| 121a5d44 MD |
67 | #define rcu_assign_pointer(p, v) \ |
| 68 | rcu_assign_pointer_sym((void **)(p), (v)) | |
| cf380c2f | 69 | |
| 121a5d44 MD |
70 | extern void *rcu_xchg_pointer_sym(void **p, void *v); |
| 71 | #define rcu_xchg_pointer(p, v) \ | |
| 72 | rcu_xchg_pointer_sym((void **)(p), (v)) | |
| 9d335088 | 73 | |
| 121a5d44 MD |
74 | extern void *rcu_publish_content_sym(void **p, void *v); |
| 75 | #define rcu_publish_content(p, v) \ | |
| 76 | rcu_publish_content_sym((void **)(p), (v)) | |
| cf380c2f | 77 | |
| 121a5d44 | 78 | #endif /* !_LGPL_SOURCE */ |
| f4a486ac | 79 | |
| e462817e | 80 | extern void synchronize_rcu(void); |
| 27b012e2 MD |
81 | |
| 82 | /* | |
| 83 | * Reader thread registration. | |
| 84 | */ | |
| 121a5d44 MD |
85 | extern void rcu_register_thread(void); |
| 86 | extern void rcu_unregister_thread(void); | |
| 27b012e2 MD |
87 | |
| 88 | #endif /* _URCU_H */ |