X-Git-Url: http://git.liburcu.org/?p=userspace-rcu.git;a=blobdiff_plain;f=src%2Furcu-defer.h;fp=src%2Furcu-defer.h;h=43eca34fe2f0c363d9f58a2380d1203541590450;hp=0000000000000000000000000000000000000000;hb=6893800a4d1cc14dff0395ddcd660a5138db183d;hpb=a59f39055b5ecb77b68cf78b9839aa9e8e4ec332 diff --git a/src/urcu-defer.h b/src/urcu-defer.h new file mode 100644 index 0000000..43eca34 --- /dev/null +++ b/src/urcu-defer.h @@ -0,0 +1,67 @@ +#ifndef _URCU_BATCH_H +#define _URCU_BATCH_H + +/* + * urcu-defer.h + * + * Userspace RCU header - deferred execution + * + * Copyright (c) 2009 Mathieu Desnoyers + * Copyright (c) 2009 Paul E. McKenney, IBM Corporation. + * + * LGPL-compatible code should include this header with : + * + * #define _LGPL_SOURCE + * #include + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Note: the defer_rcu() API is currently EXPERIMENTAL. It may change in the + * future. + * + * Important ! + * + * Each thread queuing memory reclamation must be registered with + * rcu_defer_register_thread(). rcu_defer_unregister_thread() should be + * called before the thread exits. + * + * *NEVER* use defer_rcu() within a RCU read-side critical section, because this + * primitive need to call synchronize_rcu() if the thread queue is full. + */ + +extern void defer_rcu(void (*fct)(void *p), void *p); + +/* + * Thread registration for reclamation. + */ +extern int rcu_defer_register_thread(void); +extern void rcu_defer_unregister_thread(void); +extern void rcu_defer_barrier(void); +extern void rcu_defer_barrier_thread(void); + +#ifdef __cplusplus +} +#endif + +#endif /* _URCU_BATCH_H */