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_H 28 #define _UMEM_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include <sys/vmem.h> 34 #include <stdlib.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 #define UMEM_DEFAULT 0x0000 /* normal -- may fail */ 41 #define UMEM_NOFAIL 0x0100 /* Never fails -- may call exit(2) */ 42 43 #define UMEM_FLAGS 0xffff /* all settable umem flags */ 44 45 extern void *umem_alloc(size_t, int); 46 extern void *umem_alloc_align(size_t, size_t, int); 47 extern void *umem_zalloc(size_t, int); 48 extern void umem_free(void *, size_t); 49 extern void umem_free_align(void *, size_t); 50 51 /* 52 * Flags for umem_cache_create() 53 */ 54 #define UMC_NOTOUCH 0x00010000 55 #define UMC_NODEBUG 0x00020000 56 #define UMC_NOMAGAZINE 0x00040000 57 #define UMC_NOHASH 0x00080000 58 59 struct umem_cache; /* cache structure is opaque to umem clients */ 60 61 typedef struct umem_cache umem_cache_t; 62 typedef int umem_constructor_t(void *, void *, int); 63 typedef void umem_destructor_t(void *, void *); 64 typedef void umem_reclaim_t(void *); 65 66 typedef int umem_nofail_callback_t(void); 67 #define UMEM_CALLBACK_RETRY 0 68 #define UMEM_CALLBACK_EXIT(status) (0x100 | ((status) & 0xFF)) 69 70 extern void umem_nofail_callback(umem_nofail_callback_t *); 71 72 extern umem_cache_t *umem_cache_create(char *, size_t, 73 size_t, umem_constructor_t *, umem_destructor_t *, umem_reclaim_t *, 74 void *, vmem_t *, int); 75 extern void umem_cache_destroy(umem_cache_t *); 76 77 extern void *umem_cache_alloc(umem_cache_t *, int); 78 extern void umem_cache_free(umem_cache_t *, void *); 79 80 extern void umem_reap(void); 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif /* _UMEM_H */ 87