include/kmem.h

   1 /*
   2  * Copyright (c) 2008 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #ifndef __KMEM_H__
  19 #define __KMEM_H__
  20
  21 #define KM_SLEEP        0x0001u
  22 #define KM_NOSLEEP      0x0002u
  23 #define KM_NOFS         0x0004u
  24 #define KM_MAYFAIL      0x0008u
  25 #define KM_LARGE        0x0010u
  26
  27 typedef struct kmem_zone {
  28         int     zone_unitsize;  /* Size in bytes of zone unit           */
  29         char    *zone_name;     /* tag name                             */
  30         int     allocated;      /* debug: How many currently allocated  */
  31 } kmem_zone_t;
  32
  33 extern kmem_zone_t *kmem_zone_init(int, char *);
  34 extern void     *kmem_zone_alloc(kmem_zone_t *, int);
  35 extern void     *kmem_zone_zalloc(kmem_zone_t *, int);
  36
  37 static inline void
  38 kmem_zone_free(kmem_zone_t *zone, void *ptr)
  39 {
  40         zone->allocated--;
  41         free(ptr);
  42 }
  43
  44 extern void     *kmem_alloc(size_t, int);
  45 extern void     *kmem_zalloc(size_t, int);
  46
  47 static inline void
  48 kmem_free(void *ptr) {
  49         free(ptr);
  50 }
  51
  52 extern void     *kmem_realloc(void *, size_t, int);
  53
  54 #endif