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 */ 165