1 /* $NetBSD: umem.h,v 1.1 2009/08/07 20:57:55 haad Exp $ */ 2 3 /* 4 * CDDL HEADER START 5 * 6 * The contents of this file are subject to the terms of the 7 * Common Development and Distribution License, Version 1.0 only 8 * (the "License"). You may not use this file except in compliance 9 * with the License. 10 * 11 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 12 * or http://www.opensolaris.org/os/licensing. 13 * See the License for the specific language governing permissions 14 * and limitations under the License. 15 * 16 * When distributing Covered Code, include this CDDL HEADER in each 17 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 18 * If applicable, add the following below this CDDL HEADER, with the 19 * fields enclosed by brackets "[]" replaced with your own identifying 20 * information: Portions Copyright [yyyy] [name of copyright owner] 21 * 22 * CDDL HEADER END 23 */ 24 /* 25 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 #ifndef _UMEM_H 30 #define _UMEM_H 31 32 33 34 #include <sys/types.h> 35 #include <stdlib.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #define UMEM_DEFAULT 0x0000 /* normal -- may fail */ 42 #define UMEM_NOFAIL 0x0100 /* Never fails -- may call exit(2) */ 43 44 #define UMEM_FLAGS 0xffff /* all settable umem flags */ 45 46 extern void *umem_alloc(size_t, int); 47 extern void *umem_alloc_align(size_t, size_t, int); 48 extern void *umem_zalloc(size_t, int); 49 extern void umem_free(void *, size_t); 50 extern void umem_free_align(void *, size_t); 51 52 /* 53 * Flags for umem_cache_create() 54 */ 55 #define UMC_NOTOUCH 0x00010000 56 #define UMC_NODEBUG 0x00020000 57 #define UMC_NOMAGAZINE 0x00040000 58 #define UMC_NOHASH 0x00080000 59 60 struct umem_cache; /* cache structure is opaque to umem clients */ 61 62 typedef struct umem_cache umem_cache_t; 63 typedef int umem_constructor_t(void *, void *, int); 64 typedef void umem_destructor_t(void *, void *); 65 typedef void umem_reclaim_t(void *); 66 67 typedef int umem_nofail_callback_t(void); 68 #define UMEM_CALLBACK_RETRY 0 69 #define UMEM_CALLBACK_EXIT(status) (0x100 | ((status) & 0xFF)) 70 71 extern void umem_nofail_callback(umem_nofail_callback_t *); 72 73 extern umem_cache_t *umem_cache_create(char *, size_t, 74 size_t, umem_constructor_t *, umem_destructor_t *, umem_reclaim_t *, 75 void *, void *, int); 76 extern void umem_cache_destroy(umem_cache_t *); 77 78 extern void *umem_cache_alloc(umem_cache_t *, int); 79 extern void umem_cache_free(umem_cache_t *, void *); 80 81 extern void umem_reap(void); 82 83 #ifdef __cplusplus 84 } 85 #endif 86 87 #endif /* _UMEM_H */ 88