xref: /freebsd/sys/contrib/openzfs/include/os/linux/spl/sys/tsd.h (revision 61145dc2b94f12f6a47344fb9aac702321880e43)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *  Copyright (C) 2010 Lawrence Livermore National Security, LLC.
4  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6  *  UCRL-CODE-235197
7  *
8  *  This file is part of the SPL, Solaris Porting Layer.
9  *
10  *  The SPL is free software; you can redistribute it and/or modify it
11  *  under the terms of the GNU General Public License as published by the
12  *  Free Software Foundation; either version 2 of the License, or (at your
13  *  option) any later version.
14  *
15  *  The SPL is distributed in the hope that it will be useful, but WITHOUT
16  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
18  *  for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
22  */
23 
24 #ifndef _SPL_TSD_H
25 #define	_SPL_TSD_H
26 
27 #include <sys/types.h>
28 
29 #define	TSD_HASH_TABLE_BITS_DEFAULT	9
30 #define	TSD_KEYS_MAX			32768
31 #define	DTOR_PID			(PID_MAX_LIMIT+1)
32 #define	PID_KEY				(TSD_KEYS_MAX+1)
33 
34 typedef void (*dtor_func_t)(void *);
35 
36 extern int tsd_set(uint_t, void *);
37 extern void *tsd_get(uint_t);
38 extern void *tsd_get_by_thread(uint_t, kthread_t *);
39 extern void tsd_create(uint_t *, dtor_func_t);
40 extern void tsd_destroy(uint_t *);
41 extern void tsd_exit(void);
42 
43 int spl_tsd_init(void);
44 void spl_tsd_fini(void);
45 
46 #endif /* _SPL_TSD_H */
47