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 * alloc.c -- memory allocation wrapper functions, replacable in more 27 * constrained environments, such as within a DE. 28 */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <stdlib.h> 33 #include <string.h> 34 35 #include "alloc.h" 36 #include "out.h" 37 #include "stats.h" 38 39 static struct stats *Malloctotal; 40 static struct stats *Malloccount; 41 42 void 43 alloc_init(void) 44 { 45 Malloctotal = stats_new_counter("alloc.total", "bytes allocated", 1); 46 Malloccount = stats_new_counter("alloc.calls", "total calls", 1); 47 } 48 49 void 50 alloc_fini(void) 51 { 52 struct stats *mt, *mc; 53 54 mt = Malloctotal; 55 mc = Malloccount; 56 57 Malloctotal = NULL; 58 Malloccount = NULL; 59 60 stats_delete(mt); 61 stats_delete(mc); 62 } 63 64 /* 65 * alloc_malloc -- a malloc() with checks 66 * 67 * this routine is typically called via the MALLOC() macro in alloc.h 68 */ 69 70 void * 71 alloc_malloc(size_t nbytes, const char *fname, int line) 72 { 73 void *retval = malloc(nbytes); 74 75 if (retval == NULL) 76 outfl(O_DIE, fname, line, "malloc: out of memory"); 77 78 if (Malloctotal) 79 stats_counter_add(Malloctotal, nbytes); 80 81 if (Malloccount) 82 stats_counter_bump(Malloccount); 83 84 return (retval); 85 } 86 87 /* 88 * alloc_realloc -- a realloc() with checks 89 * 90 * this routine is typically called via the REALLOC() macro in alloc.h 91 */ 92 void * 93 alloc_realloc(void *ptr, size_t nbytes, const char *fname, int line) 94 { 95 void *retval = realloc(ptr, nbytes); 96 97 if (retval == NULL) 98 out(O_DIE, fname, line, "realloc: out of memory"); 99 100 return (retval); 101 } 102 103 /* 104 * alloc_strdup -- a strdup() with checks 105 * 106 * this routine is typically called via the STRDUP() macro in alloc.h 107 */ 108 char * 109 alloc_strdup(const char *ptr, const char *fname, int line) 110 { 111 char *retval = strdup(ptr); 112 113 if (retval == NULL) 114 outfl(O_DIE, fname, line, "strdup: out of memory"); 115 116 return (retval); 117 } 118 119 /* 120 * alloc_free -- a free() with checks 121 * 122 * this routine is typically called via the FREE() macro in alloc.h 123 */ 124 /*ARGSUSED1*/ 125 void 126 alloc_free(void *ptr, const char *fname, int line) 127 { 128 /* nothing to check in this version */ 129 free(ptr); 130 } 131