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4477a870 MD |
1 | #ifndef _URCU_MB_H |
2 | #define _URCU_MB_H | |
27b012e2 | 3 | |
b257a10b | 4 | /* |
4477a870 | 5 | * urcu-mb.h |
b257a10b MD |
6 | * |
7 | * Userspace RCU header | |
8 | * | |
6982d6d7 | 9 | * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
af02d47e | 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 | |
7e30abe3 | 37 | /* |
6cd23d47 | 38 | * See urcu/pointer.h and urcu/static/pointer.h for pointer |
af7c2dbe | 39 | * publication headers. |
7e30abe3 | 40 | */ |
6cd23d47 | 41 | #include <urcu/pointer.h> |
7e30abe3 | 42 | |
36bc70a8 MD |
43 | #ifdef __cplusplus |
44 | extern "C" { | |
67ecffc0 | 45 | #endif |
36bc70a8 | 46 | |
4477a870 | 47 | #include <urcu/map/urcu-mb.h> |
5e77fc1f | 48 | |
92b752ee MD |
49 | /* |
50 | * Important ! | |
51 | * | |
52 | * Each thread containing read-side critical sections must be registered | |
5e77fc1f PM |
53 | * with rcu_register_thread_mb() before calling rcu_read_lock_mb(). |
54 | * rcu_unregister_thread_mb() should be called before the thread exits. | |
92b752ee MD |
55 | */ |
56 | ||
121a5d44 | 57 | #ifdef _LGPL_SOURCE |
b0d5e790 | 58 | |
4477a870 | 59 | #include <urcu/static/urcu-mb.h> |
3a86deba MD |
60 | |
61 | /* | |
121a5d44 MD |
62 | * Mappings for static use of the userspace RCU library. |
63 | * Should only be used in LGPL-compatible code. | |
3a86deba | 64 | */ |
3a86deba | 65 | |
7e30abe3 MD |
66 | /* |
67 | * rcu_read_lock() | |
68 | * rcu_read_unlock() | |
69 | * | |
70 | * Mark the beginning and end of a read-side critical section. | |
71 | * DON'T FORGET TO USE RCU_REGISTER/UNREGISTER_THREAD() FOR EACH THREAD WITH | |
72 | * READ-SIDE CRITICAL SECTION. | |
73 | */ | |
4477a870 MD |
74 | #define urcu_mb_read_lock _urcu_mb_read_lock |
75 | #define urcu_mb_read_unlock _urcu_mb_read_unlock | |
76 | #define urcu_mb_read_ongoing _urcu_mb_read_ongoing | |
41718ff9 | 77 | |
121a5d44 | 78 | #else /* !_LGPL_SOURCE */ |
27b012e2 | 79 | |
40e140c9 | 80 | /* |
121a5d44 | 81 | * library wrappers to be used by non-LGPL compatible source code. |
6cd23d47 | 82 | * See LGPL-only urcu/static/pointer.h for documentation. |
40e140c9 | 83 | */ |
cf380c2f | 84 | |
4477a870 MD |
85 | extern void urcu_mb_read_lock(void); |
86 | extern void urcu_mb_read_unlock(void); | |
87 | extern int urcu_mb_read_ongoing(void); | |
cf380c2f | 88 | |
121a5d44 | 89 | #endif /* !_LGPL_SOURCE */ |
f4a486ac | 90 | |
4477a870 | 91 | extern void urcu_mb_synchronize_rcu(void); |
27b012e2 MD |
92 | |
93 | /* | |
94 | * Reader thread registration. | |
95 | */ | |
4477a870 MD |
96 | extern void urcu_mb_register_thread(void); |
97 | extern void urcu_mb_unregister_thread(void); | |
27b012e2 | 98 | |
e95f4e7f | 99 | /* |
02be5561 | 100 | * Explicit rcu initialization, for "early" use within library constructors. |
e95f4e7f | 101 | */ |
4477a870 | 102 | extern void urcu_mb_init(void); |
e95f4e7f | 103 | |
51b03c6f MD |
104 | /* |
105 | * Q.S. reporting are no-ops for these URCU flavors. | |
106 | */ | |
4477a870 | 107 | static inline void urcu_mb_quiescent_state(void) |
51b03c6f MD |
108 | { |
109 | } | |
110 | ||
4477a870 | 111 | static inline void urcu_mb_thread_offline(void) |
51b03c6f MD |
112 | { |
113 | } | |
114 | ||
4477a870 | 115 | static inline void urcu_mb_thread_online(void) |
51b03c6f MD |
116 | { |
117 | } | |
118 | ||
67ecffc0 | 119 | #ifdef __cplusplus |
36bc70a8 MD |
120 | } |
121 | #endif | |
122 | ||
6cd23d47 MD |
123 | #include <urcu/call-rcu.h> |
124 | #include <urcu/defer.h> | |
125 | #include <urcu/flavor.h> | |
5e77fc1f | 126 | |
4477a870 MD |
127 | #ifndef URCU_API_MAP |
128 | #include <urcu/map/clear.h> | |
129 | #endif | |
130 | ||
131 | #endif /* _URCU_MB_H */ |