usr/src/lib/libumem/common/vmem_base.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  * Copyright 2012 Joyent, Inc. All rights reserved.
  25  */
  26
  27 #ifndef _VMEM_BASE_H
  28 #define _VMEM_BASE_H
  29
  30 #include <sys/vmem.h>
  31 #include <umem.h>
  32
  33 #ifdef  __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 #include "misc.h"
  38
  39 extern void vmem_startup(void);
  40 extern vmem_t *vmem_init(const char *parent_name, size_t parent_quantum,
  41         vmem_alloc_t *parent_alloc, vmem_free_t *parent_free,
  42         const char *heap_name,
  43         void *heap_start, size_t heap_size, size_t heap_quantum,
  44         vmem_alloc_t *heap_alloc, vmem_free_t *heap_free);
  45
  46 extern void *_vmem_extend_alloc(vmem_t *vmp, void *vaddr, size_t size,
  47         size_t alloc, int vmflag);
  48
  49 extern vmem_t *vmem_heap_arena(vmem_alloc_t **, vmem_free_t **);
  50 extern void vmem_heap_init(void);
  51
  52 extern vmem_t *vmem_sbrk_arena(vmem_alloc_t **, vmem_free_t **);
  53 extern vmem_t *vmem_mmap_arena(vmem_alloc_t **, vmem_free_t **);
  54 extern vmem_t *vmem_stand_arena(vmem_alloc_t **, vmem_free_t **);
  55
  56 extern void vmem_update(void *);
  57 extern void vmem_reap(void);            /* vmem_populate()-safe reap */
  58
  59 extern size_t pagesize;
  60 extern size_t vmem_sbrk_pagesize;
  61 extern size_t vmem_sbrk_minalloc;
  62
  63 extern uint_t vmem_backend;
  64 #define VMEM_BACKEND_SBRK       0x0000001
  65 #define VMEM_BACKEND_MMAP       0x0000002
  66 #define VMEM_BACKEND_STAND      0x0000003
  67
  68 extern uint_t vmem_allocator;
  69
  70 extern vmem_t *vmem_heap;
  71 extern vmem_alloc_t *vmem_heap_alloc;
  72 extern vmem_free_t *vmem_heap_free;
  73
  74 extern void vmem_lockup(void);
  75 extern void vmem_release(void);
  76
  77 extern void vmem_sbrk_lockup(void);
  78 extern void vmem_sbrk_release(void);
  79
  80 extern void vmem_no_debug(void);
  81
  82 #ifdef  __cplusplus
  83 }
  84 #endif
  85
  86 #endif  /* _VMEM_BASE_H */