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74 lines
2.5 KiB
74 lines
2.5 KiB
/****************************************************************************/
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// aoacom.c
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//
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// Functions common to OA in WD and DD
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//
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// Copyright (C) 1997-2000 Microsoft Corporation
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/****************************************************************************/
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#ifdef DLL_DISP
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#define _pShm pddShm
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#else
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#define _pShm m_pShm
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#endif
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/****************************************************************************/
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// OA_ResetOrderList
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//
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// Frees all Orders and Additional Order Data in the Order List.
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// Frees up the Order Heap memory.
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/****************************************************************************/
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__inline void SHCLASS OA_ResetOrderList()
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{
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// Simply clear the list head, the heap contents become useless.
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_pShm->oa.TotalOrderBytes = 0;
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_pShm->oa.nextOrder = 0;
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InitializeListHead(&_pShm->oa.orderListHead);
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}
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/****************************************************************************/
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// OA_RemoveListOrder
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//
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// Removes the specified order from the Order List by marking it as spoilt.
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// Returns a pointer to the order following the removed order.
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/****************************************************************************/
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PINT_ORDER SHCLASS OA_RemoveListOrder(PINT_ORDER pCondemnedOrder)
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{
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PINT_ORDER pNextOrder;
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DC_BEGIN_FN("OA_RemoveListOrder");
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TRC_DBG((TB, "Remove list order (%p)", pCondemnedOrder));
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// Store a ptr to the next order. If we are at the end of the list
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// we return NULL.
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if (pCondemnedOrder->list.Flink != &_pShm->oa.orderListHead)
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pNextOrder = CONTAINING_RECORD(pCondemnedOrder->list.Flink,
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INT_ORDER, list);
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else
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pNextOrder = NULL;
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// Remove the order.
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RemoveEntryList(&pCondemnedOrder->list);
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TRC_ASSERT((_pShm->oa.TotalOrderBytes >= pCondemnedOrder->OrderLength),
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(TB,"We're removing too many bytes from the order heap - "
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"TotalOrderBytes=%u, ord size to remove=%u",
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_pShm->oa.TotalOrderBytes, pCondemnedOrder->OrderLength));
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_pShm->oa.TotalOrderBytes -= pCondemnedOrder->OrderLength;
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// Check that the list is still consistent with the total number of
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// order bytes.
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if (_pShm->oa.TotalOrderBytes == 0 &&
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!IsListEmpty(&_pShm->oa.orderListHead)) {
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TRC_ERR((TB, "List not empty when total ord bytes==0"));
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InitializeListHead(&_pShm->oa.orderListHead);
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}
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DC_END_FN();
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return pNextOrder;
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}
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