projects / urcu.git / blame
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|---|---|---|
| b57aee66 PM |
1 | #ifndef _URCU_CALL_RCU_H |
| 2 | #define _URCU_CALL_RCU_H | |
| 3 | ||
| 4 | /* | |
| 5 | * urcu-call-rcu.h | |
| 6 | * | |
| 7 | * Userspace RCU header - deferred execution | |
| 8 | * | |
| 9 | * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 10 | * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. | |
| 11 | * | |
| 12 | * LGPL-compatible code should include this header with : | |
| 13 | * | |
| 14 | * #define _LGPL_SOURCE | |
| 15 | * #include <urcu-defer.h> | |
| 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 | #include <urcu/wfqueue.h> | |
| 36 | ||
| 37 | #ifdef __cplusplus | |
| 38 | extern "C" { | |
| 39 | #endif | |
| 40 | ||
| 41 | /* Note that struct call_rcu_data is opaque to callers. */ | |
| 42 | ||
| 43 | struct call_rcu_data; | |
| 44 | ||
| 45 | /* Flag values. */ | |
| 46 | ||
| 47 | #define URCU_CALL_RCU_RT 0x1 | |
| 48 | #define URCU_CALL_RCU_RUNNING 0x2 | |
| 49 | ||
| 50 | /* | |
| 51 | * The rcu_head data structure is placed in the structure to be freed | |
| 52 | * via call_rcu(). | |
| 53 | */ | |
| 54 | ||
| 55 | struct rcu_head { | |
| 56 | struct cds_wfq_node next; | |
| 57 | void (*func)(struct rcu_head *head); | |
| 58 | }; | |
| 59 | ||
| 60 | /* | |
| 61 | * Exported functions | |
| 62 | */ | |
| 63 | void call_rcu_data_init(struct call_rcu_data **crdpp, unsigned long flags); | |
| 64 | struct call_rcu_data *get_cpu_call_rcu_data(int cpu); | |
| 65 | pthread_t get_call_rcu_thread(struct call_rcu_data *crdp); | |
| 66 | struct call_rcu_data *create_call_rcu_data(unsigned long flags); | |
| 67 | int set_cpu_call_rcu_data(int cpu, struct call_rcu_data *crdp); | |
| 68 | struct call_rcu_data *get_default_call_rcu_data(void); | |
| 69 | struct call_rcu_data *get_call_rcu_data(void); | |
| 70 | struct call_rcu_data *get_thread_call_rcu_data(void); | |
| 71 | void set_thread_call_rcu_data(struct call_rcu_data *crdp); | |
| 72 | int create_all_cpu_call_rcu_data(unsigned long flags); | |
| 73 | void call_rcu(struct rcu_head *head, | |
| 74 | void (*func)(struct rcu_head *head)); | |
| 75 | ||
| 76 | #ifdef __cplusplus | |
| 77 | } | |
| 78 | #endif | |
| 79 | ||
| 80 | #endif /* _URCU_CALL_RCU_H */ |