bsd/dev/random/YarrowCoreLib/port/smf.c

   1 /*
   2  * Copyright (c) 1999-2006 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /*
  30         File:           smf.c
  31
  32         Contains:       platform-dependent malloc/free
  33
  34 */
  35
  36 #include <dev/random/YarrowCoreLib/src/smf.h>
  37 #include <sys/malloc.h>
  38 #include <sys/systm.h>
  39
  40
  41 SMFAPI void mmInit( void )
  42 {
  43         return;
  44 }
  45
  46 SMFAPI MMPTR mmMalloc(DWORD request)
  47 {
  48     // since kfree requires that we pass in the alloc size, add enough bytes to store a dword
  49     void* mem;
  50
  51     mem = _MALLOC (request, M_DEVBUF, M_WAITOK);
  52
  53     if (mem == 0) // oops, it didn't appear to work
  54     {
  55         printf ("Couldn't allocate kernel memory!\n");
  56         return NULL;
  57     }
  58
  59     return (MMPTR) mem;
  60 }
  61
  62 SMFAPI void mmFree(MMPTR ptrnum)
  63 {
  64     // get the size of the pointer back
  65     _FREE (ptrnum, M_DEVBUF);
  66 }
  67
  68 SMFAPI LPVOID mmGetPtr(MMPTR ptrnum)
  69 {
  70         return (LPVOID)ptrnum;
  71 }
  72
  73 SMFAPI void mmReturnPtr(__unused MMPTR ptrnum)
  74 {
  75         /* nothing */
  76         return;
  77 }
  78