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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdlib.h> 30 #include <strings.h> 31 #include <umem.h> 32 #include <poll.h> 33 #include <errno.h> 34 35 #include <fmd_alloc.h> 36 #include <fmd_subr.h> 37 #include <fmd_module.h> 38 #include <fmd_scheme.h> 39 #include <fmd.h> 40 41 void * 42 fmd_alloc(size_t size, int flags) 43 { 44 void *data = umem_alloc(size, UMEM_DEFAULT); 45 uint_t try, lim, msecs; 46 47 if (data != NULL || size == 0 || !(flags & FMD_SLEEP)) 48 return (data); /* in common cases just return result */ 49 50 lim = fmd.d_alloc_tries; 51 msecs = fmd.d_alloc_msecs; 52 53 for (try = 0; data == NULL && try < lim; try++) { 54 (void) poll(NULL, 0, msecs); 55 msecs *= 10; 56 data = umem_alloc(size, UMEM_DEFAULT); 57 } 58 59 if (data == NULL) { 60 fmd_modhash_tryapply(fmd.d_mod_hash, fmd_module_trygc); 61 fmd_scheme_hash_trygc(fmd.d_schemes); 62 data = umem_alloc(size, UMEM_DEFAULT); 63 } 64 65 if (data == NULL) 66 fmd_panic("insufficient memory (%u bytes needed)\n", size); 67 68 return (data); 69 } 70 71 void * 72 fmd_zalloc(size_t size, int flags) 73 { 74 void *data = fmd_alloc(size, flags); 75 76 if (data != NULL) 77 bzero(data, size); 78 79 return (data); 80 } 81 82 void 83 fmd_free(void *data, size_t size) 84 { 85 umem_free(data, size); 86 } 87