zfs-builds-mm/zfs-0.8.4/include/spl/sys/tsd.h

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2020-07-19 16:21:53 +02:00
/*
* Copyright (C) 2010 Lawrence Livermore National Security, LLC.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* UCRL-CODE-235197
*
* This file is part of the SPL, Solaris Porting Layer.
* For details, see <http://zfsonlinux.org/>.
*
* The SPL is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* The SPL 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 General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with the SPL. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SPL_TSD_H
#define _SPL_TSD_H
#include <sys/types.h>
#define TSD_HASH_TABLE_BITS_DEFAULT 9
#define TSD_KEYS_MAX 32768
#define DTOR_PID (PID_MAX_LIMIT+1)
#define PID_KEY (TSD_KEYS_MAX+1)
typedef void (*dtor_func_t)(void *);
extern int tsd_set(uint_t, void *);
extern void *tsd_get(uint_t);
extern void *tsd_get_by_thread(uint_t, kthread_t *);
extern void tsd_create(uint_t *, dtor_func_t);
extern void tsd_destroy(uint_t *);
extern void tsd_exit(void);
int spl_tsd_init(void);
void spl_tsd_fini(void);
#endif /* _SPL_TSD_H */