netinfo.subproj/mm.h

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Useful memory managment macros
  27  * Copyright (C) 1989 by NeXT, Inc.
  28  */
  29 #define  mm_used() mstats()
  30
  31 #define MM_ALLOC(obj) obj = ((void *)malloc(sizeof(*(obj))))
  32
  33 #define MM_FREE(obj)  free((void *)(obj))
  34
  35 #define MM_ZERO(obj)  bzero((void *)(obj), sizeof(*(obj)))
  36
  37 #define MM_BCOPY(b1, b2, size) bcopy((void *)(b1), (void *)(b2), \
  38                                      (unsigned)(size))
  39
  40 #define MM_BEQ(b1, b2, size) (bcmp((void *)(b1), (void *)(b2), \
  41                                    (unsigned)(size)) == 0)
  42
  43 #define MM_ALLOC_ARRAY(obj, len)  \
  44         obj = ((void *)malloc(sizeof(*(obj)) * (len)))
  45
  46 #define MM_ZERO_ARRAY(obj, len) bzero((void *)(obj), sizeof(*obj) * len)
  47
  48 #define MM_FREE_ARRAY(obj, len) free((void *)(obj))
  49
  50 #define MM_GROW_ARRAY(obj, len) \
  51         ((obj == NULL) ? (MM_ALLOC_ARRAY((obj), (len) + 1)) : \
  52          (obj = (void *)realloc((void *)(obj), \
  53                                 sizeof(*(obj)) * ((len) + 1))))
  54
  55 #define MM_SHRINK_ARRAY(obj, len) \
  56         obj = (void *)realloc((void *)(obj), \
  57                               sizeof(*(obj)) * ((len) - 1))
  58