usr/src/lib/libumem/common/umem_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  */
  25 /*
  26  * Copyright (c) 2012, Joyent, Inc.  All rights reserved.
  27  */
  28
  29 #ifndef _UMEM_BASE_H
  30 #define _UMEM_BASE_H
  31
  32 #include <umem_impl.h>
  33
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 #include "misc.h"
  39
  40 extern size_t pagesize;
  41 #undef PAGESIZE
  42 #define PAGESIZE        pagesize
  43
  44 /*
  45  * umem.c: non-tunables
  46  */
  47 extern vmem_t           *umem_memalign_arena;
  48
  49 extern int umem_ready;
  50 extern thread_t umem_init_thr;          /* the thread doing the init */
  51
  52 extern int umem_init(void);             /* do umem's initialization */
  53 #pragma rarely_called(umem_init)
  54
  55 extern umem_log_header_t *umem_transaction_log;
  56 extern umem_log_header_t *umem_content_log;
  57 extern umem_log_header_t *umem_failure_log;
  58 extern umem_log_header_t *umem_slab_log;
  59
  60 extern mutex_t umem_init_lock;
  61
  62 extern mutex_t umem_cache_lock;
  63 extern umem_cache_t umem_null_cache;
  64
  65 extern mutex_t umem_flags_lock;
  66
  67 extern mutex_t umem_update_lock;
  68 extern cond_t umem_update_cv;
  69 extern volatile thread_t umem_st_update_thr;
  70 extern thread_t umem_update_thr;
  71 extern struct timeval   umem_update_next;
  72
  73 extern volatile hrtime_t umem_reap_next;
  74 extern volatile uint32_t umem_reaping;
  75 #define UMEM_REAP_DONE          0x00000000      /* inactive */
  76 #define UMEM_REAP_ADDING        0x00000001      /* umem_reap() is active */
  77 #define UMEM_REAP_ACTIVE        0x00000002      /* update thread is reaping */
  78
  79 extern uintptr_t umem_tmem_off;
  80
  81 /*
  82  * umem.c: tunables
  83  */
  84 extern uint32_t umem_max_ncpus;
  85
  86 extern uint32_t umem_stack_depth;
  87 extern uint32_t umem_reap_interval;
  88 extern uint32_t umem_update_interval;
  89 extern uint32_t umem_depot_contention;
  90 extern uint32_t umem_abort;
  91 extern uint32_t umem_output;
  92 extern uint32_t umem_logging;
  93 extern uint32_t umem_mtbf;
  94 extern size_t umem_transaction_log_size;
  95 extern size_t umem_content_log_size;
  96 extern size_t umem_failure_log_size;
  97 extern size_t umem_slab_log_size;
  98 extern size_t umem_content_maxsave;
  99 extern size_t umem_lite_minsize;
 100 extern size_t umem_lite_maxalign;
 101 extern size_t umem_maxverify;
 102 extern size_t umem_minfirewall;
 103 extern size_t umem_ptc_size;
 104
 105 extern uint32_t umem_flags;
 106
 107 /*
 108  * umem.c: Internal aliases (to avoid PLTs)
 109  */
 110 extern void *_umem_alloc(size_t size, int umflags);
 111 extern void *_umem_zalloc(size_t size, int umflags);
 112 extern void _umem_free(void *buf, size_t size);
 113
 114 extern void *_umem_cache_alloc(umem_cache_t *cache, int flags);
 115 extern void _umem_cache_free(umem_cache_t *cache, void *buffer);
 116
 117 /*
 118  * umem.c: private interfaces
 119  */
 120 extern void umem_type_init(caddr_t, size_t, size_t);
 121 extern int umem_get_max_ncpus(void);
 122 extern void umem_process_updates(void);
 123 extern void umem_cache_applyall(void (*)(umem_cache_t *));
 124 extern void umem_cache_update(umem_cache_t *);
 125
 126 extern void umem_alloc_sizes_add(size_t);
 127 extern void umem_alloc_sizes_clear(void);
 128 extern void umem_alloc_sizes_remove(size_t);
 129
 130 /*
 131  * umem_fork.c: private interfaces
 132  */
 133 extern void umem_forkhandler_init(void);
 134
 135 /*
 136  * umem_update_thread.c
 137  */
 138 extern int umem_create_update_thread(void);
 139
 140 /*
 141  * envvar.c:
 142  */
 143 void umem_setup_envvars(int);
 144 void umem_process_envvars(void);
 145
 146 /*
 147  * umem_genasm.c: private interfaces
 148  */
 149 extern const int umem_genasm_supported;
 150 extern int umem_genasm(int *, umem_cache_t **, int);
 151
 152 /*
 153  * malloc.c: traditional malloc/free interface for genasm
 154  */
 155 extern void *umem_malloc(size_t);
 156 extern void umem_malloc_free(void *);
 157 extern void *_malloc(size_t);
 158 extern void _free(void *);
 159
 160 #ifdef  __cplusplus
 161 }
 162 #endif
 163
 164 #endif  /* _UMEM_BASE_H */