mirror of
https://github.com/arehnman/yttrium-virtio-gpu.git
synced 2026-10-31 02:05:04 +00:00
Sameeh Jubran
30bec9cfd1
Clearing the variables is important as calling the Dotr twice on the same object will cause BSODs as a result of a double free for example. Signed-off-by: Sameeh Jubran <[email protected]>
111 lines
2.1 KiB
C++
111 lines
2.1 KiB
C++
#include "ParaNdis-Util.h"
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#include "ndis56common.h"
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#include "Trace.h"
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#ifdef NETKVM_WPP_ENABLED
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#include "ParaNdis-Util.tmh"
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#endif
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#ifdef DBG
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void NetKvmAssert(bool Statement, ULONG Code)
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{
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if (!Statement)
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{
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KeBugCheckEx(0x0ABCDEF0,
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0x0ABCDEF0,
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Code,
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NDIS_MINIPORT_MAJOR_VERSION,
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NDIS_MINIPORT_MINOR_VERSION);
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}
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}
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#endif
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bool CNdisSharedMemory::Allocate(ULONG Size, bool IsCached)
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{
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m_Size = Size;
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m_IsCached = IsCached;
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NdisMAllocateSharedMemory(m_DrvHandle, Size, m_IsCached, &m_VA, &m_PA);
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return m_VA != nullptr;
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}
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CNdisSharedMemory::~CNdisSharedMemory()
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{
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if(m_VA != nullptr)
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{
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NdisMFreeSharedMemory(m_DrvHandle, m_Size, m_IsCached, m_VA, m_PA);
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m_VA = nullptr;
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}
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}
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//Generic delete operators
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//Must never be called
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void __CRTDECL operator delete(void *) throw()
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{
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NETKVM_ASSERT(FALSE);
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#ifdef DBG
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KeBugCheck(100);
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#endif
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}
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void __CRTDECL operator delete(void *, UINT64) throw()
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{
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ASSERT(FALSE);
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#ifdef DBG
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KeBugCheck(100);
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#endif
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}
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void __CRTDECL operator delete(void *, unsigned int) throw()
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{
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ASSERT(FALSE);
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#ifdef DBG
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KeBugCheck(100);
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#endif
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}
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void __CRTDECL operator delete[](void *) throw()
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{
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NETKVM_ASSERT(FALSE);
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#ifdef DBG
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KeBugCheck(100);
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#endif
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}
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#ifdef RW_LOCK_62
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bool CNdisRWLock::Create(NDIS_HANDLE miniportHandle) {
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m_pLock = NdisAllocateRWLock(miniportHandle);
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return m_pLock != 0;
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}
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#endif
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ULONG ParaNdis_GetIndexFromAffinity(KAFFINITY affinity)
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{
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DWORD index = 0;
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BOOLEAN result;
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#ifdef _WIN64
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result = BitScanForward64(&index, affinity);
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#else
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result = BitScanForward(&index, affinity);
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#endif
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if (result && ((KAFFINITY)1 << index) == affinity)
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{
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return index;
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}
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return INVALID_PROCESSOR_INDEX;
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}
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ULONG ParaNdis_GetSystemCPUCount()
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{
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ULONG nProcessors;
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#if NDIS_SUPPORT_NDIS620
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nProcessors = NdisGroupActiveProcessorCount(ALL_PROCESSOR_GROUPS);
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#elif NDIS_SUPPORT_NDIS6
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nProcessors = NdisSystemProcessorCount();
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#else
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#error not supported
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#endif
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return nProcessors;
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}
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