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Improve efficiency and behaviour of vListInsertEnd().

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This commit is contained in:
Richard Barry 2013-06-26 08:58:01 +00:00
parent f11635ed91
commit 4444b4ee68
2 changed files with 20 additions and 25 deletions
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12
FreeRTOS/Source/list.c
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@ -114,15 +114,13 @@ volatile xListItem * pxIndex;
/* Insert a new list item into pxList, but rather than sort the list,
makes the new list item the last item to be removed by a call to
pvListGetOwnerOfNextEntry. This means it has to be the item pointed to by
the pxIndex member. */
pvListGetOwnerOfNextEntry. */
pxIndex = pxList->pxIndex;
pxNewListItem->pxNext = pxIndex->pxNext;
pxNewListItem->pxPrevious = pxList->pxIndex;
pxIndex->pxNext->pxPrevious = ( volatile xListItem * ) pxNewListItem;
pxIndex->pxNext = ( volatile xListItem * ) pxNewListItem;
pxList->pxIndex = ( volatile xListItem * ) pxNewListItem;
pxNewListItem->pxNext = pxIndex;
pxNewListItem->pxPrevious = pxIndex->pxPrevious;
pxIndex->pxPrevious->pxNext = ( volatile xListItem * ) pxNewListItem;
pxIndex->pxPrevious = ( volatile xListItem * ) pxNewListItem;
/* Remember which list the item is in. */
pxNewListItem->pvContainer = ( void * ) pxList;