| 1 | /** @file
|
|---|
| 2 | *
|
|---|
| 3 | * VBox Host Guest Shared Memory Interface (HGSMI).
|
|---|
| 4 | * Host part helpers.
|
|---|
| 5 | */
|
|---|
| 6 |
|
|---|
| 7 | /*
|
|---|
| 8 | * Copyright (C) 2006-2008 Oracle Corporation
|
|---|
| 9 | *
|
|---|
| 10 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 11 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 12 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 13 | * General Public License (GPL) as published by the Free Software
|
|---|
| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 17 | */
|
|---|
| 18 |
|
|---|
| 19 |
|
|---|
| 20 | #ifndef __HGSMIHostHlp_h__
|
|---|
| 21 | #define __HGSMIHostHlp_h__
|
|---|
| 22 |
|
|---|
| 23 | #include <iprt/assert.h>
|
|---|
| 24 | #include <iprt/types.h>
|
|---|
| 25 |
|
|---|
| 26 | typedef struct _HGSMILISTENTRY
|
|---|
| 27 | {
|
|---|
| 28 | struct _HGSMILISTENTRY *pNext;
|
|---|
| 29 | } HGSMILISTENTRY;
|
|---|
| 30 |
|
|---|
| 31 | typedef struct _HGSMILIST
|
|---|
| 32 | {
|
|---|
| 33 | HGSMILISTENTRY *pHead;
|
|---|
| 34 | HGSMILISTENTRY *pTail;
|
|---|
| 35 | } HGSMILIST;
|
|---|
| 36 |
|
|---|
| 37 | void hgsmiListAppend (HGSMILIST *pList, HGSMILISTENTRY *pEntry);
|
|---|
| 38 | DECLINLINE(void) hgsmiListPrepend (HGSMILIST *pList, HGSMILISTENTRY *pEntry)
|
|---|
| 39 | {
|
|---|
| 40 | HGSMILISTENTRY * pHead = pList->pHead;
|
|---|
| 41 | pList->pHead = pEntry;
|
|---|
| 42 | pEntry->pNext = pHead;
|
|---|
| 43 | if (!pHead)
|
|---|
| 44 | pList->pTail = pEntry;
|
|---|
| 45 | }
|
|---|
| 46 |
|
|---|
| 47 | void hgsmiListRemove (HGSMILIST *pList, HGSMILISTENTRY *pEntry, HGSMILISTENTRY *pPrev);
|
|---|
| 48 |
|
|---|
| 49 | DECLINLINE(HGSMILISTENTRY*) hgsmiListRemoveHead (HGSMILIST *pList)
|
|---|
| 50 | {
|
|---|
| 51 | HGSMILISTENTRY *pHead = pList->pHead;
|
|---|
| 52 | if (pHead)
|
|---|
| 53 | hgsmiListRemove (pList, pHead, NULL);
|
|---|
| 54 | return pHead;
|
|---|
| 55 | }
|
|---|
| 56 |
|
|---|
| 57 | DECLINLINE(bool) hgsmiListIsEmpty (HGSMILIST *pList)
|
|---|
| 58 | {
|
|---|
| 59 | return !pList->pHead;
|
|---|
| 60 | }
|
|---|
| 61 |
|
|---|
| 62 | DECLINLINE(void) hgsmiListInit (HGSMILIST *pList)
|
|---|
| 63 | {
|
|---|
| 64 | pList->pHead = NULL;
|
|---|
| 65 | pList->pTail = NULL;
|
|---|
| 66 | }
|
|---|
| 67 |
|
|---|
| 68 | HGSMILISTENTRY * hgsmiListRemoveAll (HGSMILIST *pList, HGSMILISTENTRY ** ppTail /* optional */);
|
|---|
| 69 |
|
|---|
| 70 | DECLINLINE(void) hgsmiListAppendAll (HGSMILIST *pList, HGSMILISTENTRY *pHead, HGSMILISTENTRY *pTail)
|
|---|
| 71 | {
|
|---|
| 72 | if(hgsmiListIsEmpty (pList))
|
|---|
| 73 | {
|
|---|
| 74 | pList->pHead = pHead;
|
|---|
| 75 | pList->pTail = pTail;
|
|---|
| 76 | }
|
|---|
| 77 | else
|
|---|
| 78 | {
|
|---|
| 79 | pList->pTail->pNext = pHead;
|
|---|
| 80 | pList->pTail = pTail;
|
|---|
| 81 | }
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | DECLINLINE(void) hgsmiListPrependAll (HGSMILIST *pList, HGSMILISTENTRY *pHead, HGSMILISTENTRY *pTail)
|
|---|
| 85 | {
|
|---|
| 86 | HGSMILISTENTRY *pOldHead = pList->pHead;
|
|---|
| 87 | if(!pOldHead)
|
|---|
| 88 | {
|
|---|
| 89 | pList->pHead = pHead;
|
|---|
| 90 | pList->pTail = pTail;
|
|---|
| 91 | }
|
|---|
| 92 | else
|
|---|
| 93 | {
|
|---|
| 94 | pList->pHead = pHead;
|
|---|
| 95 | pTail->pNext = pOldHead;
|
|---|
| 96 | }
|
|---|
| 97 | }
|
|---|
| 98 |
|
|---|
| 99 | DECLINLINE(void) hgsmiListCat (HGSMILIST *pList, HGSMILIST *pList2)
|
|---|
| 100 | {
|
|---|
| 101 | hgsmiListAppendAll (pList, pList2->pHead, pList2->pTail);
|
|---|
| 102 | hgsmiListInit (pList2);
|
|---|
| 103 | }
|
|---|
| 104 |
|
|---|
| 105 | DECLINLINE(void) hgsmiListPrepCat (HGSMILIST *pList, HGSMILIST *pList2)
|
|---|
| 106 | {
|
|---|
| 107 | hgsmiListPrependAll (pList, pList2->pHead, pList2->pTail);
|
|---|
| 108 | hgsmiListInit (pList2);
|
|---|
| 109 | }
|
|---|
| 110 |
|
|---|
| 111 |
|
|---|
| 112 | #endif /* !__HGSMIHostHlp_h__*/
|
|---|
