--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicshwdrivers/surfacemgr/test/testdriver/d_sharedchunk.cpp Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,406 @@
+// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <kernel/kern_priv.h>
+#include "d_sharedchunk.h"
+
+static TInt ChunkDestroyedCount=1; // Test counter
+
+//
+// Class definitions
+//
+
+class DSharedChunkFactory : public DLogicalDevice
+ {
+public:
+ ~DSharedChunkFactory();
+ virtual TInt Install();
+ virtual void GetCaps(TDes8& aDes) const;
+ virtual TInt Create(DLogicalChannelBase*& aChannel);
+ void LockWait();
+ void LockSignal();
+private:
+ NFastMutex iLock;
+ };
+
+class DSharedChunkChannel : public DLogicalChannelBase
+ {
+public:
+ DSharedChunkChannel();
+ ~DSharedChunkChannel();
+ virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
+ virtual TInt Request(TInt aFunction, TAny* a1, TAny* a2);
+ DChunk* OpenChunk(TLinAddr* aKernelAddr=0, TInt* aMaxSize=0);
+ inline void LockWait()
+ { iFactory->LockWait(); }
+ inline void LockSignal()
+ { iFactory->LockSignal(); }
+public:
+ DSharedChunkFactory* iFactory;
+ DChunk* iChunk;
+ TLinAddr iKernelAddress;
+ TInt iMaxSize;
+
+public:
+ /** Require physically contiguous memory */
+ TInt iContiguous;
+ /** Caching attribute to create chunks memory */
+ TInt iCacheAttrib;
+ };
+
+class TChunkCleanup : public TDfc
+ {
+public:
+ TChunkCleanup(DSharedChunkFactory* aFactory);
+ ~TChunkCleanup();
+ static void ChunkDestroyed(TChunkCleanup* aSelf);
+ void Cancel();
+public:
+ DSharedChunkFactory* iFactory;
+ };
+
+//
+// TChunkCleanup
+//
+
+TChunkCleanup::TChunkCleanup(DSharedChunkFactory* aFactory)
+ : TDfc((TDfcFn)TChunkCleanup::ChunkDestroyed,this,Kern::SvMsgQue(),0)
+ , iFactory(0)
+ {
+ aFactory->Open();
+ iFactory = aFactory;
+ }
+
+TChunkCleanup::~TChunkCleanup()
+ {
+ if(iFactory)
+ iFactory->Close(0);
+ }
+
+void TChunkCleanup::ChunkDestroyed(TChunkCleanup* aSelf)
+ {
+ DSharedChunkFactory* factory = aSelf->iFactory;
+ if(factory)
+ {
+ factory->LockWait();
+ ++ChunkDestroyedCount;
+ factory->LockSignal();
+ }
+ delete aSelf;
+ }
+
+void TChunkCleanup::Cancel()
+ {
+ if(iFactory)
+ {
+ iFactory->Close(0);
+ iFactory = 0;
+ }
+ };
+
+//
+// DSharedChunkFactory
+//
+
+TInt DSharedChunkFactory::Install()
+ {
+ return SetName(&KSharedChunkLddName);
+ }
+
+DSharedChunkFactory::~DSharedChunkFactory()
+ {
+
+ }
+
+void DSharedChunkFactory::GetCaps(TDes8& /*aDes*/) const
+ {
+ // Not used but required as DLogicalDevice::GetCaps is pure virtual
+ }
+
+TInt DSharedChunkFactory::Create(DLogicalChannelBase*& aChannel)
+ {
+ aChannel = NULL;
+ DSharedChunkChannel* channel=new DSharedChunkChannel;
+ if(!channel)
+ return KErrNoMemory;
+ channel->iFactory = this;
+ aChannel = channel;
+ return KErrNone;
+ }
+
+void DSharedChunkFactory::LockWait()
+ {
+ NKern::FMWait(&iLock);
+ }
+
+void DSharedChunkFactory::LockSignal()
+ {
+ NKern::FMSignal(&iLock);
+ }
+
+DECLARE_STANDARD_LDD()
+ {
+ return new DSharedChunkFactory;
+ }
+
+//
+// DSharedChunkChannel
+//
+
+TInt DSharedChunkChannel::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
+ {
+ return KErrNone;
+ }
+
+DSharedChunkChannel::DSharedChunkChannel()
+:iFactory(0),iChunk(0),iKernelAddress(0),iMaxSize(0), iContiguous(0),iCacheAttrib(0)
+ {
+ }
+
+DSharedChunkChannel::~DSharedChunkChannel()
+ {
+ if(iChunk)
+ iChunk->Close(0);
+ }
+
+DChunk* DSharedChunkChannel::OpenChunk(TLinAddr* aKernelAddr,TInt* aMaxSize)
+ {
+ __ASSERT_CRITICAL // Thread must be in critical section (to avoid leaking access count on chunk)
+ LockWait();
+ DChunk* chunk=iChunk;
+ if(chunk)
+ if(chunk->Open()!=KErrNone)
+ chunk = NULL;
+ if(aKernelAddr)
+ *aKernelAddr = chunk ? iKernelAddress : NULL;
+ if(aMaxSize)
+ *aMaxSize = chunk ? iMaxSize : 0;
+ LockSignal();
+ return chunk;
+ }
+
+TInt DSharedChunkChannel::Request(TInt aFunction, TAny* a1, TAny* a2)
+ {
+ TInt i1 = (TInt)a1;
+ TInt i2 = (TInt)a2;
+
+ TInt r=KErrNotSupported;
+
+ switch(aFunction)
+ {
+
+ case RSharedChunkLdd::ECreateChunk:
+ {
+ if(ChunkDestroyedCount==0)
+ NKern::Sleep(NKern::TimerTicks(100)); // Go idle for a while to let chunk cleanup DFCs to be called
+
+ NKern::ThreadEnterCS();
+
+ TChunkCleanup* cleanup = new TChunkCleanup(this->iFactory);
+ if(!cleanup)
+ {
+ NKern::ThreadLeaveCS();
+ return KErrNoMemory;
+ }
+
+ // Try and create chunk...
+ DChunk* chunk;
+ TChunkCreateInfo info;
+
+ info.iType = (i1&EMultiple)
+ ? TChunkCreateInfo::ESharedKernelMultiple
+ : TChunkCreateInfo::ESharedKernelSingle;
+
+ info.iMaxSize = i1&~ECreateFlagsMask;
+#ifndef __WINS__
+ info.iMapAttr = (i1&ECached) ? EMapAttrCachedMax
+ : EMapAttrFullyBlocking;
+#else
+ info.iMapAttr = 0;
+#endif
+
+ info.iOwnsMemory = (i1&EOwnsMemory)!=0;
+
+ info.iDestroyedDfc = cleanup;
+
+ if(i1&EBadType) *(TUint8*)&info.iType = 0xff;
+
+ TUint32 mapAttr;
+ TUint32 kernAddr;
+ r = Kern::ChunkCreate(info, chunk, kernAddr, mapAttr);
+ if(r!=KErrNone)
+ {
+ Kern::Printf("Chunk create failed with reason: %d",r);
+ delete cleanup;
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+ // Setup data members
+ LockWait();
+
+ if(iChunk)
+ r = KErrAlreadyExists;
+ else
+ {
+ iChunk = chunk;
+ iKernelAddress = kernAddr;
+ iMaxSize = info.iMaxSize;
+#ifndef __WINS__
+ TUint32 level1Info = mapAttr & EMapAttrL1CacheMask;
+ TUint32 level2Info = mapAttr & EMapAttrL2CacheMask;
+ TBool chunkIsNotcached = ((level2Info == EMapAttrL2Uncached) &&
+ ((level1Info == EMapAttrFullyBlocking) || (level1Info == EMapAttrBufferedNC) ||
+ (level1Info == EMapAttrBufferedC) || (level1Info == EMapAttrL1Uncached)));
+ iCacheAttrib = (chunkIsNotcached) ? ENotCached : ECached;
+
+#else
+ iCacheAttrib = 0;
+#endif
+ ChunkDestroyedCount = 0;
+ }
+ LockSignal();
+
+ if(r!=KErrNone)
+ {
+ // There was an error, so discard created chunk
+ cleanup->Cancel();
+ Kern::ChunkClose(chunk);
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+ NKern::ThreadLeaveCS();
+
+ // Write back kernel address of chunk
+ if(a2)
+ kumemput32(a2,(TAny*)&kernAddr,4);
+
+ return KErrNone;
+ }
+
+
+ case RSharedChunkLdd::EGetChunkHandle:
+ {
+ NKern::ThreadEnterCS();
+ DChunk* chunk=OpenChunk();
+ if(chunk)
+ {
+ Kern::Printf("We can open a chunk here.");
+ r = Kern::MakeHandleAndOpen(0,chunk);
+ Kern::Printf("The chunk handle we get is: %d", r);
+ chunk->Close(0);
+ }
+ else
+ r = KErrNotFound;
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+
+ case RSharedChunkLdd::ECloseChunkHandle:
+ {
+ NKern::ThreadEnterCS();
+ r = Kern::CloseHandle(0,i1);
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+
+ case RSharedChunkLdd::ECommitMemory:
+ {
+ NKern::ThreadEnterCS();
+ TUint32 chunkKernelAddress;
+ DChunk* chunk=OpenChunk(&chunkKernelAddress);
+ if(chunk)
+ {
+ TInt type = i1&ECommitTypeMask;
+ i1 &= ~ECommitTypeMask;
+ iContiguous = type;
+ switch(type)
+ {
+ case ENonContiguous:
+ r = Kern::ChunkCommit(chunk,i1,i2);
+ break;
+
+ case EContiguous:
+ {
+ TUint32 physAddr=~0u;
+ r = Kern::ChunkCommitContiguous(chunk,i1,i2,physAddr);
+ if(r!=KErrNone || i2==0)
+ break;
+ if(physAddr==~0u)
+ { r=KErrGeneral; break; }
+
+ // Check that ChunkPhysicalAddress returns addresses consistant with the commit
+ TUint32 kernAddr;
+ TUint32 mapAttr;
+ TUint32 physAddr2;
+ r = Kern::ChunkPhysicalAddress(chunk, i1, i2, kernAddr, mapAttr, physAddr2);
+ if(r==KErrNone)
+ if(kernAddr!=chunkKernelAddress+i1 || physAddr2!=physAddr)
+ r=KErrGeneral;
+ }
+ break;
+
+ default:
+ r = KErrNotSupported;
+ break;
+ }
+ chunk->Close(0);
+ }
+ else
+ r = KErrNotFound;
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+ case RSharedChunkLdd::ECloseChunk:
+ {
+ NKern::ThreadEnterCS();
+
+ // Claim ownership of the chunk
+ LockWait();
+ DChunk* chunk=iChunk;
+ iChunk = 0;
+ LockSignal();
+
+ // Close the chunk
+ if(chunk)
+ r = Kern::ChunkClose(chunk);
+ else
+ r = KErrNotFound;
+
+ NKern::ThreadLeaveCS();
+ return r;
+ }
+
+ case RSharedChunkLdd::ECacheAttribute:
+ {
+ Kern::Printf("In my shared chunk, the iCacheAttrib is: %d", iCacheAttrib);
+ return iCacheAttrib;
+ }
+
+ case RSharedChunkLdd::EContiguousAttribute:
+ {
+ Kern::Printf("In my shared chunk, the iContiguous is: %d", iContiguous);
+ return iContiguous;
+ }
+
+ default:
+ return KErrNotSupported;
+ }
+ }
+