// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of the License "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:

 // f32test\server\b_open.cpp

 // 

 //

 #define __E32TEST_EXTENSION__

 #include <f32file.h>

 #include <e32test.h>

 #include <e32hal.h>

 #include <f32dbg.h>

 #include "t_server.h"

 #include "t_chlffs.h"

 #ifdef __WINS__

 #define WIN32_LEAN_AND_MEAN

 #pragma warning( disable : 4201 ) // nonstandard extension used : nameless struct/union

 #include <windows.h>

 #pragma warning( default : 4201 ) // nonstandard extension used : nameless struct/union

 #endif

 GLDEF_D RTest test(_L("B_OPEN"));

 LOCAL_D const TInt KMaxFiles=200;

 LOCAL_D TBuf<32> nameBuf[KMaxFiles];

 LOCAL_D TBuf<0x100> nameBuf1;

 LOCAL_D RFile chan[KMaxFiles];

 LOCAL_D RFile chan1;

 LOCAL_D TFileName fBuf;

 LOCAL_D TVolumeInfo vInfo;

 LOCAL_D TInt LeaveMemFree;

 LOCAL_C void testOpenFiles()

 //

 // Open files till memory is full

 // Write, seek, read, seteof, close, check and delete all files.

 //

     {

 	TChar currentDrive=gSessionPath[0];

 	TInt driveNum;

 	TInt r=TheFs.CharToDrive(currentDrive,driveNum);

 	test_KErrNone(r);

     TInt i=0;

 	TInt totalRam;

     FOREVER

         {

 #if defined(__WINS__)

 		DWORD sectorsPerCluster;

 		DWORD bytesPerSector;

 		DWORD freeClusters;

 		DWORD sizeClusters;

 		BOOL b=GetDiskFreeSpaceA("C:\\",&sectorsPerCluster,&bytesPerSector,&freeClusters,&sizeClusters);

 		test(b==TRUE);

 		totalRam=sizeClusters*sectorsPerCluster*bytesPerSector;

 #else

 		TMemoryInfoV1Buf memInfoBuf;

 		UserHal::MemoryInfo(memInfoBuf);

 		totalRam=memInfoBuf().iTotalRamInBytes;

 #endif

         test.Printf(_L("Open %u\n"),i);

         nameBuf[i].Format(_L("B_OPEN test file %d"),i);

 		r=chan[i].Replace(TheFs,nameBuf[i],EFileStream|EFileWrite);

 		if (r==KErrNone)

 			{

 			r=chan[i].Write(_L8("SomeText"));

 			if ((gDriveCacheFlags & EFileCacheWriteOn) && (r == KErrNone))

 				r = chan[i].Flush();

 			if (r==KErrDiskFull)

 				{

 				chan[i].Close();

 				test(TheFs.Delete(nameBuf[i])==KErrNone);

 				}

 			}

 		if (r==KErrDiskFull)

 			break;

 		if (r==KErrNoMemory)

 			break;

 		if (r!=KErrNone)

 			{

 			test.Printf(_L("ERROR: RFile::Replace returned %d\n"),r);

 			test(EFalse);

 			}

         r=TheFs.Volume(vInfo);

 		test_KErrNone(r);

 		if (driveNum==EDriveC)

 	        test.Printf(_L("VInfo size=0x%x free=0x%x TotalRam = 0x%x\n"),vInfo.iSize,vInfo.iFree,totalRam);

         test(vInfo.iFree<=vInfo.iSize);

 //      r=TheFs.Volume(vInfo,(driveNum==EDriveC) ? EDriveD : EDriveC);

 //		if (r==KErrNone);

 //		test(vInfo.iFree<=vInfo.iSize);

 	    i++;

         if (i==KMaxFiles)

             {

             if (IsTestingLFFS())

                 break;

             else

                 test.Panic(_L("Too many files opened"));

             }

         }

 	test.Printf(_L("Created %d extra files\n"),i);

 	const TInt n_files=i;

 	r=TheFs.Volume(vInfo);

 	test_KErrNone(r);

 	if (driveNum==EDriveC && (vInfo.iDrive.iMediaAtt & KMediaAttVariableSize))

 		{

 		test(vInfo.iSize<=totalRam);

 		test(vInfo.iFree<=totalRam);

 		}

     test(vInfo.iFree<=vInfo.iSize);

 	test.Next(_L("SetSize to each file"));

     for (i=0;i<n_files;i++)

         {

 		r=chan[i].SetSize(0);

 		test_KErrNone(r);

         }

 	test.Next(_L("Write to each file"));

     TBuf8<3> numBuf;

     for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Write %u\n"),i);

 		numBuf.Format(_L8("%d"),i);

 		r=chan[i].Write(0,numBuf);

 		test_KErrNone(r);

         }

 	test.Next(_L("Seek on each file"));

     for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Seeking %u\n"),i);

         TInt pos=0;

         r=chan[i].Seek(ESeekStart,pos);

 		test_KErrNone(r);

         }

 	test.Next(_L("Read from each file"));

     TBuf8<3> checkBuf;

 	for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Read %u\n"),i);

         r=chan[i].Read(checkBuf,3);

 		test_KErrNone(r);

 		numBuf.Format(_L8("%d"),i);

 		test(numBuf==checkBuf);

         }

 	test.Next(_L("Set size of each file"));

     for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Set size %u\n"),i);

         r=chan[i].SetSize(i);

 		test_KErrNone(r);

         }

     r=TheFs.Volume(vInfo);

 	test_KErrNone(r);

 	if (driveNum==EDriveC && (vInfo.iDrive.iMediaAtt & KMediaAttVariableSize))

 		{

 	    test(vInfo.iSize<=totalRam);

 		test(vInfo.iFree<=totalRam);

 		}

     test(vInfo.iFree<=vInfo.iSize);

 	test.Next(_L("Close each file"));

     for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Close %u\n"),i);

         chan[i].Close();

         }

 	test.Next(_L("Open each file"));

 	TInt n_files_open;

     for (n_files_open=0; n_files_open < n_files; n_files_open++)

         {

         r = chan[n_files_open].Open(TheFs,nameBuf[n_files_open],EFileRead|EFileStream);

 		test.Printf(_L("Open(%d) ret %d\n"), n_files_open, r);

 		if (r != KErrNone)

 			{

 			if (driveNum==EDriveC && (vInfo.iDrive.iMediaAtt & KMediaAttVariableSize))

 				break;

 			else

 				test(0);

 			}

         }

 	test.Next(_L("Check size of each file"));

     for (i=0;i<n_files_open;i++)

         {

         test.Printf(_L("Check %u\n"),i);

         TInt size;

 		TInt r=chan[i].Size(size);

 		test.Printf(_L("size of file %u is %d ret %d\n"),i,size, r);

 		test_KErrNone(r);

 		test_Equal(i,size);

         }

 	test.Next(_L("Close each file"));

     for (i=0;i<n_files_open;i++)

         {

         test.Printf(_L("Close %u\n"),i);

         chan[i].Close();

         }

 	test.Next(_L("Delete files"));

     for (i=0;i<n_files;i++)

         {

         test.Printf(_L("Delete %u\n"),i);

         r=TheFs.Delete(nameBuf[i]);

 		test_KErrNone(r);

         }

     }

 LOCAL_C void InitTest()

 //

 // Create a large file

 //

 	{

 	TInt fileNumber = 0;

 	TBool fileSizeTruncated;

 	do

 		{

 		fileSizeTruncated = EFalse;

 		nameBuf1.Format(_L("\\Hooge Test File for B_OPEN %d"), fileNumber++);

 		TInt r=chan1.Replace(TheFs,nameBuf1,EFileStream|EFileWrite);

 		test_KErrNone(r);

 		r=TheFs.Volume(vInfo);

 		test_KErrNone(r);

 		TInt64 size;

 		LeaveMemFree = 0x400; // ???

 		if (vInfo.iFree>LeaveMemFree)

 			size=vInfo.iFree-LeaveMemFree;

 		else

 			size=0;

 		const TInt KMaxFileSize = 0x40000000;

 		// test as 64 bit numbers in case size is very large (eg. enough that TInt is

 		// not large enough to hold it)

 		TInt64 KMaxFileSize64 = MAKE_TINT64(0, KMaxFileSize);

 		test.Printf(_L("Free space available = %08x:%08x\n"), I64HIGH(size), I64LOW(size));

 		if (size > KMaxFileSize64)

 			{

 			size = KMaxFileSize;

 			test.Printf(_L("Truncated to %d to avoid current FAT FSY file size limit !!!\n"), size);

 			fileSizeTruncated = ETrue;

 			}

 		TFileName sessionPath;

 		TheFs.SessionPath(sessionPath);

 		TBuf<32> message=_L("?: has %ld bytes free\n");

 		message[0]=sessionPath[0];

 		test.Printf(message,vInfo.iFree);

 		if (((vInfo.iDrive.iMediaAtt)&KMediaAttVariableSize)==0)

 			{

 			// Not a variable sized drive, so should be safe to to just create big file

 			test.Printf(_L("Creating %S, 0x%08lx\n"),&nameBuf1,size);

 			r=chan1.SetSize((TUint)size);

 			}

 		else

 			{

 			// Variable sized drive (proabably RAM drive) needs a bit of special treatment

 			// Use a binary search to allocate largest sized file possible...

 			test.Printf(_L("Creating %S, 0x%08x\n"),&nameBuf1,size);

 			TInt lo = 0;

 			TInt hi = (TInt)size;

 			const TInt KSizeGranularity = 0x200; // must be power-of-2

 			while(hi-lo>KSizeGranularity && r==KErrNone)

 				{

 				TInt trySize = (lo+hi)/2;

 				trySize &= ~(KSizeGranularity-1);

 				r = chan1.SetSize((TUint)trySize);

 				if(r==KErrNone)

 					{

 					size = trySize;

 					lo = trySize;

 					}

 				else if(r==KErrDiskFull)

 					{

 					hi = trySize;

 					r = KErrNone;

 					}

 				}

 			if(r==KErrNone)

 				{

 				// reduce size to leave some free for tests...

 				LeaveMemFree = 4096*4; // best leave several RAM pages worth of space so rest of test has some memory

 				size -= LeaveMemFree;

 				r = chan1.SetSize((TUint)size);

 				}

 			}

 		if (r!=KErrNone)

 			{

 			test.Printf(_L("ERROR: Creating large file failed %d\n"),r);

 			test(EFalse);

 			}

 		test.Printf(_L("Created %S, 0x%08x\n"),&nameBuf1,size);

 		chan1.Close();

 		}

 	while (fileSizeTruncated);

 	}

 LOCAL_C void Cleanup()

 //

 // Cleanup test files

 //

 	{

 	TInt r=TheFs.Delete(nameBuf1);

 	test_KErrNone(r);

 	r=TheFs.RmDir(gSessionPath);

 	test_KErrNone(r);

 	}

 GLDEF_C void CallTestsL()

 //

 // Call tests that may leave

 //

 	{

 #ifdef __WINS__

 // These tests try to create a huge file to fill up the drive.

 // This fails on WINS with drives with > 1/2G free because

 // RFile::SetSize() (among other things) only takes a TInt.

 //

 	if (gSessionPath.Left(1).CompareF(_L("C")) == 0)

 		return;

 #endif

 	CreateTestDirectory(_L("\\B_OPEN\\"));

 	InitTest();

 	testOpenFiles();

 	Cleanup();

 	}