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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _UMEM_BASE_H 28 #define _UMEM_BASE_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 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 /* 80 * umem.c: tunables 81 */ 82 extern uint32_t umem_max_ncpus; 83 84 extern uint32_t umem_stack_depth; 85 extern uint32_t umem_reap_interval; 86 extern uint32_t umem_update_interval; 87 extern uint32_t umem_depot_contention; 88 extern uint32_t umem_abort; 89 extern uint32_t umem_output; 90 extern uint32_t umem_logging; 91 extern uint32_t umem_mtbf; 92 extern size_t umem_transaction_log_size; 93 extern size_t umem_content_log_size; 94 extern size_t umem_failure_log_size; 95 extern size_t umem_slab_log_size; 96 extern size_t umem_content_maxsave; 97 extern size_t umem_lite_minsize; 98 extern size_t umem_lite_maxalign; 99 extern size_t umem_maxverify; 100 extern size_t umem_minfirewall; 101 102 extern uint32_t umem_flags; 103 104 /* 105 * umem.c: Internal aliases (to avoid PLTs) 106 */ 107 extern void *_umem_alloc(size_t size, int umflags); 108 extern void *_umem_zalloc(size_t size, int umflags); 109 extern void _umem_free(void *buf, size_t size); 110 111 extern void *_umem_cache_alloc(umem_cache_t *cache, int flags); 112 extern void _umem_cache_free(umem_cache_t *cache, void *buffer); 113 114 /* 115 * umem.c: private interfaces 116 */ 117 extern void umem_type_init(caddr_t, size_t, size_t); 118 extern int umem_get_max_ncpus(void); 119 extern void umem_process_updates(void); 120 extern void umem_cache_applyall(void (*)(umem_cache_t *)); 121 extern void umem_cache_update(umem_cache_t *); 122 123 /* 124 * umem_fork.c: private interfaces 125 */ 126 extern void umem_forkhandler_init(void); 127 128 /* 129 * umem_update_thread.c 130 */ 131 extern int umem_create_update_thread(void); 132 133 /* 134 * envvar.c: 135 */ 136 void umem_setup_envvars(int); 137 void umem_process_envvars(void); 138 139 #ifdef __cplusplus 140 } 141 #endif 142 143 #endif /* _UMEM_BASE_H */ 144