#ifndef	_SYS_ZFS_EVENTHOOKS_H
#define	_SYS_ZFS_EVENTHOOKS_H

#include <sys/types.h>
#include <sys/vnode.h>
#include <sys/vfs.h>
#include <sys/zfs_znode.h>
#include <sys/zil.h>

#ifdef	__cplusplus
extern "C" {
#endif

#ifdef _KERNEL

/* zfsvfs ops */
typedef void (*rz_zev_zfs_mount_cb_t)(vfs_t *vfs, vnode_t *mpt, char *dataset,
    boolean_t remount);
typedef void (*rz_zev_zfs_umount_cb_t)(vfs_t *vfs);
/* zvol zil events */
typedef void (*rz_zev_zvol_truncate_cb_t)(char *dataset, objset_t *os,
    dmu_tx_t *tx, uint64_t off, uint64_t len);
typedef void (*rz_zev_zvol_write_cb_t)(char *dataset, objset_t *os,
    dmu_tx_t *tx, uint64_t off, uint64_t len);
/* znode zil events */
typedef void (*rz_zev_znode_close_after_update_cb_t)(znode_t *zp);
typedef void (*rz_zev_znode_create_cb_t)(znode_t *dzp, znode_t *zp,
    dmu_tx_t *tx, char *name, uint64_t txmode);
typedef void (*rz_zev_znode_remove_cb_t)(znode_t *dzp, znode_t *zp,
    dmu_tx_t *tx, char *name, uint64_t txmode);
typedef void (*rz_zev_znode_link_cb_t)(znode_t *dzp, znode_t *zp,
    dmu_tx_t *tx, char *name);
typedef void (*rz_zev_znode_symlink_cb_t)(znode_t *dzp, znode_t *zp,
    dmu_tx_t *tx, char *name, char *link);
typedef void (*rz_zev_znode_rename_cb_t)(znode_t *sdzp,
    char *sname, znode_t *tdzp, char *tname, znode_t *szp, znode_t *tzp,
    dmu_tx_t *tx);
typedef void (*rz_zev_znode_write_cb_t)(znode_t *zp,
    dmu_tx_t *tx, uint64_t off,
    uint64_t len);
typedef void (*rz_zev_znode_truncate_cb_t)(znode_t *zp, dmu_tx_t *tx,
    uint64_t off, uint64_t len);
typedef void (*rz_zev_znode_setattr_cb_t)(znode_t *zp, dmu_tx_t *tx);
typedef void (*rz_zev_znode_acl_cb_t)(znode_t *zp, dmu_tx_t *tx);

typedef struct rz_zev_callbacks {
	/* zfsvfs events */
	rz_zev_zfs_mount_cb_t			rz_zev_zfs_mount;
	rz_zev_zfs_umount_cb_t			rz_zev_zfs_umount;

	/* zvol zil events */
	rz_zev_zvol_truncate_cb_t		rz_zev_zvol_truncate;
	rz_zev_zvol_write_cb_t			rz_zev_zvol_write;

	/* znode zil events */
	rz_zev_znode_close_after_update_cb_t	rz_zev_znode_close_after_update;
	rz_zev_znode_create_cb_t		rz_zev_znode_create;
	rz_zev_znode_remove_cb_t		rz_zev_znode_remove;
	rz_zev_znode_link_cb_t			rz_zev_znode_link;
	rz_zev_znode_symlink_cb_t		rz_zev_znode_symlink;
	rz_zev_znode_rename_cb_t		rz_zev_znode_rename;
	rz_zev_znode_write_cb_t			rz_zev_znode_write;
	rz_zev_znode_truncate_cb_t		rz_zev_znode_truncate;
	rz_zev_znode_setattr_cb_t		rz_zev_znode_setattr;
	rz_zev_znode_acl_cb_t			rz_zev_znode_acl;
} rz_zev_callbacks_t;

extern rz_zev_callbacks_t *rz_zev_callbacks;		/* in zfs_events.c */
extern rz_zev_callbacks_t *rz_zev_default_callbacks;	/* in zfs_events.c */
extern krwlock_t rz_zev_rwlock;				/* in zfs_events.c */

void rz_zev_init(void);
void rz_zev_fini(void);

boolean_t rz_zev_active(void);
void rz_zev_set_active(boolean_t active);

#endif

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_ZFS_EVENTS_H */