[userspace-rcu.git] / include / urcu / flavor.h

// SPDX-FileCopyrightText: 2011 Lai Jiangshan <laijs@cn.fujitsu.com>
//
// SPDX-License-Identifier: LGPL-2.1-or-later

#ifndef _URCU_FLAVOR_H
#define _URCU_FLAVOR_H

/*
 * Userspace RCU header - rcu flavor declarations
 */

#include <urcu/urcu-poll.h>

#ifdef __cplusplus
extern "C" {
#endif

struct rcu_head;

struct urcu_atfork {
	void (*before_fork)(void *priv);
	void (*after_fork_parent)(void *priv);
	void (*after_fork_child)(void *priv);
	void *priv;
};

void urcu_register_rculfhash_atfork(struct urcu_atfork *atfork);
void urcu_unregister_rculfhash_atfork(struct urcu_atfork *atfork);

struct rcu_flavor_struct {
	void (*read_lock)(void);
	void (*read_unlock)(void);
	int (*read_ongoing)(void);
	void (*read_quiescent_state)(void);
	void (*update_call_rcu)(struct rcu_head *head,
				void (*func)(struct rcu_head *head));
	void (*update_synchronize_rcu)(void);
	void (*update_defer_rcu)(void (*fct)(void *p), void *p);

	void (*thread_offline)(void);
	void (*thread_online)(void);
	void (*register_thread)(void);
	void (*unregister_thread)(void);

	void (*barrier)(void);

	void (*register_rculfhash_atfork)(struct urcu_atfork *atfork);
	void (*unregister_rculfhash_atfork)(struct urcu_atfork *atfork);

	struct urcu_gp_poll_state (*update_start_poll_synchronize_rcu)(void);
	bool (*update_poll_state_synchronize_rcu)(struct urcu_gp_poll_state state);
};

#define DEFINE_RCU_FLAVOR(x)				\
const struct rcu_flavor_struct x = {			\
	.read_lock		= rcu_read_lock,	\
	.read_unlock		= rcu_read_unlock,	\
	.read_ongoing		= rcu_read_ongoing,	\
	.read_quiescent_state	= rcu_quiescent_state,	\
	.update_call_rcu	= call_rcu,		\
	.update_synchronize_rcu	= synchronize_rcu,	\
	.update_defer_rcu	= defer_rcu,		\
	.thread_offline		= rcu_thread_offline,	\
	.thread_online		= rcu_thread_online,	\
	.register_thread	= rcu_register_thread,	\
	.unregister_thread	= rcu_unregister_thread,\
	.barrier		= rcu_barrier,		\
	.register_rculfhash_atfork = urcu_register_rculfhash_atfork,	\
	.unregister_rculfhash_atfork = urcu_unregister_rculfhash_atfork,\
	.update_start_poll_synchronize_rcu = start_poll_synchronize_rcu,\
	.update_poll_state_synchronize_rcu = poll_state_synchronize_rcu,\
}

extern const struct rcu_flavor_struct rcu_flavor;

#ifdef __cplusplus
}
#endif

#endif /* _URCU_FLAVOR_H */
Commit	Line	Data
d3d3857f MJ	1	// SPDX-FileCopyrightText: 2011 Lai Jiangshan <laijs@cn.fujitsu.com>
	2	//
	3	// SPDX-License-Identifier: LGPL-2.1-or-later
	4
541d828d LJ	5	#ifndef _URCU_FLAVOR_H
	6	#define _URCU_FLAVOR_H
	7
	8	/*
541d828d	9	* Userspace RCU header - rcu flavor declarations
541d828d LJ	10	*/
541d828d LJ	11
111bda8f MD	12	#include <urcu/urcu-poll.h>
111bda8f MD	13
541d828d LJ	14	#ifdef __cplusplus
	15	extern "C" {
	16	#endif
	17
6bcce235 MD	18	struct rcu_head;
6bcce235 MD	19
d0ec0ed2 MD	20	struct urcu_atfork {
	21	void (before_fork)(void priv);
	22	void (after_fork_parent)(void priv);
	23	void (after_fork_child)(void priv);
	24	void *priv;
	25	};
	26
	27	void urcu_register_rculfhash_atfork(struct urcu_atfork *atfork);
	28	void urcu_unregister_rculfhash_atfork(struct urcu_atfork *atfork);
	29
541d828d LJ	30	struct rcu_flavor_struct {
	31	void (*read_lock)(void);
	32	void (*read_unlock)(void);
882f3357	33	int (*read_ongoing)(void);
541d828d LJ	34	void (*read_quiescent_state)(void);
	35	void (update_call_rcu)(struct rcu_head head,
	36	void (func)(struct rcu_head head));
	37	void (*update_synchronize_rcu)(void);
	38	void (update_defer_rcu)(void (fct)(void p), void p);
	39
	40	void (*thread_offline)(void);
	41	void (*thread_online)(void);
	42	void (*register_thread)(void);
	43	void (*unregister_thread)(void);
b7f721d9 MD	44
b7f721d9 MD	45	void (*barrier)(void);
d0ec0ed2 MD	46
	47	void (register_rculfhash_atfork)(struct urcu_atfork atfork);
	48	void (unregister_rculfhash_atfork)(struct urcu_atfork atfork);
111bda8f MD	49
	50	struct urcu_gp_poll_state (*update_start_poll_synchronize_rcu)(void);
	51	bool (*update_poll_state_synchronize_rcu)(struct urcu_gp_poll_state state);
541d828d LJ	52	};
541d828d LJ	53
5e6b23a6 MD	54	#define DEFINE_RCU_FLAVOR(x) \
5e6b23a6 MD	55	const struct rcu_flavor_struct x = { \
541d828d LJ	56	.read_lock = rcu_read_lock, \
541d828d LJ	57	.read_unlock = rcu_read_unlock, \
882f3357	58	.read_ongoing = rcu_read_ongoing, \
541d828d LJ	59	.read_quiescent_state = rcu_quiescent_state, \
	60	.update_call_rcu = call_rcu, \
	61	.update_synchronize_rcu = synchronize_rcu, \
	62	.update_defer_rcu = defer_rcu, \
	63	.thread_offline = rcu_thread_offline, \
	64	.thread_online = rcu_thread_online, \
	65	.register_thread = rcu_register_thread, \
	66	.unregister_thread = rcu_unregister_thread,\
b7f721d9	67	.barrier = rcu_barrier, \
d0ec0ed2 MD	68	.register_rculfhash_atfork = urcu_register_rculfhash_atfork, \
d0ec0ed2 MD	69	.unregister_rculfhash_atfork = urcu_unregister_rculfhash_atfork,\
111bda8f MD	70	.update_start_poll_synchronize_rcu = start_poll_synchronize_rcu,\
111bda8f MD	71	.update_poll_state_synchronize_rcu = poll_state_synchronize_rcu,\
5e6b23a6	72	}
541d828d LJ	73
	74	extern const struct rcu_flavor_struct rcu_flavor;
	75
	76	#ifdef __cplusplus
	77	}
	78	#endif
	79
	80	#endif /* _URCU_FLAVOR_H */