projects / lttng-ust.git / blame
| Commit | Line | Data |
|---|---|---|
| 40b2b5a4 MD |
1 | #ifndef _LTTNG_TRACEPOINT_RCU_H |
| 2 | #define _LTTNG_TRACEPOINT_RCU_H | |
| 3 | ||
| 4 | /* | |
| e92f3e28 | 5 | * Copyright 2011-2012 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 40b2b5a4 | 6 | * |
| e92f3e28 MD |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to deal | |
| 9 | * in the Software without restriction, including without limitation the rights | |
| 10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 11 | * copies of the Software, and to permit persons to whom the Software is | |
| 12 | * furnished to do so, subject to the following conditions: | |
| 40b2b5a4 | 13 | * |
| e92f3e28 MD |
14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. | |
| d2428e87 MD |
16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 23 | * SOFTWARE. | |
| 40b2b5a4 MD |
24 | */ |
| 25 | ||
| 26 | #include <urcu/compiler.h> | |
| 10544ee8 | 27 | #include <lttng/urcu/pointer.h> |
| 40b2b5a4 MD |
28 | |
| 29 | #ifdef _LGPL_SOURCE | |
| 30 | ||
| 10544ee8 | 31 | #include <lttng/urcu/urcu-ust.h> |
| 40b2b5a4 | 32 | |
| 10544ee8 MD |
33 | #define tp_rcu_read_lock lttng_ust_urcu_read_lock |
| 34 | #define tp_rcu_read_unlock lttng_ust_urcu_read_unlock | |
| 35 | #define tp_rcu_dereference lttng_ust_rcu_dereference | |
| 51920067 | 36 | #define TP_RCU_LINK_TEST() 1 |
| 40b2b5a4 MD |
37 | |
| 38 | #else /* _LGPL_SOURCE */ | |
| 39 | ||
| 10544ee8 MD |
40 | #define tp_rcu_read_lock tracepoint_dlopen_ptr->rcu_read_lock_sym |
| 41 | #define tp_rcu_read_unlock tracepoint_dlopen_ptr->rcu_read_unlock_sym | |
| 40b2b5a4 | 42 | |
| 10544ee8 | 43 | #define tp_rcu_dereference(p) \ |
| 4d3b06fe | 44 | URCU_FORCE_CAST(__typeof__(p), \ |
| 10544ee8 | 45 | tracepoint_dlopen_ptr->rcu_dereference_sym(URCU_FORCE_CAST(void *, p))) |
| 40b2b5a4 | 46 | |
| 10544ee8 | 47 | #define TP_RCU_LINK_TEST() (tracepoint_dlopen_ptr && tp_rcu_read_lock) |
| 51920067 | 48 | |
| 40b2b5a4 MD |
49 | #endif /* _LGPL_SOURCE */ |
| 50 | ||
| 51 | #endif /* _LTTNG_TRACEPOINT_RCU_H */ |