include/sys/tsd.h

   1 /*****************************************************************************\
   2  *  Copyright (C) 2010 Lawrence Livermore National Security, LLC.
   3  *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
   4  *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
   5  *  UCRL-CODE-235197
   6  *
   7  *  This file is part of the SPL, Solaris Porting Layer.
   8  *  For details, see <http://zfsonlinux.org/>.
   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 */