FCL/sf/os/kernelhwsrv: userlibandfileserver/fileserver/shostmassstorage/server/protocol/tblocktransfer.cpp@b2826f67641f (annotated)

297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	1	// Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	2	// All rights reserved.
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	3	// This component and the accompanying materials are made available
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	4	// under the terms of the License "Eclipse Public License v1.0"
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	5	// which accompanies this distribution, and is available
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	6	// at the URL "http://www.eclipse.org/legal/epl-v10.html".
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	7	//
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	8	// Initial Contributors:
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	9	// Nokia Corporation - initial contribution.
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	10	//
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	11	// Contributors:
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	12	//
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	13	// Description:
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	14	//
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	15
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	16	/**
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	17	@file
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	18	@internalTechnology
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	19	*/
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	20
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	21	#include <e32def.h>
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	22	#include <e32std.h>
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	23	#include <e32base.h>
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	24	#include "msctypes.h"
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	25
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	26	#include "mblocktransferprotocol.h"
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	27	#include "tblocktransfer.h"
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	28
b2826f67641f 201043_03 hgs parents: 31 diff changeset	29	#include "OstTraceDefinitions.h"
b2826f67641f 201043_03 hgs parents: 31 diff changeset	30	#ifdef OST_TRACE_COMPILER_IN_USE
b2826f67641f 201043_03 hgs parents: 31 diff changeset	31	#include "tblocktransferTraces.h"
b2826f67641f 201043_03 hgs parents: 31 diff changeset	32	#endif
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	33
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	34
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	35	/**
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	36	Manage a read from a block device.
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	37
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	38	@param aProtocol A reference to object providing protocol read method
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	39	@param aPosition The position to start reading from
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	40	@param aLength The length of data to read
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	41	@param aBuf Buffer to copy the data to
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	42	*/
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	43	void TBlockTransfer::ReadL(MBlockTransferProtocol& aProtocol,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	44	TPos aPosition,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	45	TInt aLength,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	46	TDes8& aBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	47	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	48	OstTrace1(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_1,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	49	"blocklen = 0%lx", iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	50
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	51	TInt copylen = 0;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	52	TInt headlen = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	53
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	54	aBuf.SetLength(0);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	55	TPos headOffset = GetHeadBlockOffset(aPosition);
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	56	/** READ10 HEAD **/
b2826f67641f 201043_03 hgs parents: 31 diff changeset	57	if (headOffset)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	58	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	59	TPos headpos = aPosition - headOffset;
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	60	iHeadbuf->Zero();
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	61	headlen = ((headOffset + aLength - 1) / iBlockLength) == 0 ? aLength : (iBlockLength - headOffset);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	62
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	63	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_10,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	64	"Read head pos = 0%x %x length = 0%lx",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	65	I64HIGH(headpos), I64LOW(headpos), iBlockLength);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	66	aProtocol.BlockReadL(headpos, *iHeadbuf, iBlockLength);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	67	aBuf.Append(iHeadbuf->Ptr() + headOffset, headlen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	68	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	69
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	70	/** READ10 BODY **/
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	71	TInt blocksInMain = (aLength - headlen)/iBlockLength;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	72	if (blocksInMain)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	73	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	74	copylen = blocksInMain * iBlockLength;
b2826f67641f 201043_03 hgs parents: 31 diff changeset	75	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_11,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	76	"Read main pos = 0%x %x length = 0x%x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	77	I64HIGH(aPosition+headlen), I64LOW(aPosition+headlen), copylen);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	78	aProtocol.BlockReadL(aPosition+headlen, (TDes8 &)aBuf, copylen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	79	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	80
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	81	copylen += headlen;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	82
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	83	/** READ10 TAIL **/
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	84	TInt tailLen = aLength - copylen;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	85	if ((tailLen) != 0)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	86	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	87	OstTraceExt4(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_12,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	88	"Read tail pos = 0%x %x length = 0%x %x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	89	I64HIGH(aPosition+copylen), I64LOW(aPosition+copylen), I64HIGH(iBlockLength), I64LOW(iBlockLength));
b2826f67641f 201043_03 hgs parents: 31 diff changeset	90	iTailbuf->Zero();
b2826f67641f 201043_03 hgs parents: 31 diff changeset	91	aProtocol.BlockReadL(aPosition+copylen, *iTailbuf, iBlockLength);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	92	aBuf.Append(iTailbuf->Ptr(), tailLen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	93	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	94	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	95
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	96
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	97	/**
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	98	Manage a write to a block device
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	99
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	100	@param aProtocol A reference to object providing protocol read method
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	101	@param aPosition The position to start reading from
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	102	@param aLength The length of data to read
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	103	@param aBuf Buffer containing the data to write
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	104	*/
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	105	void TBlockTransfer::WriteL(MBlockTransferProtocol& aProtocol,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	106	TPos aPosition,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	107	TInt aLength,
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	108	TDesC8& aBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	109	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	110	TInt copylen = 0;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	111	TInt headlen = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	112
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	113	TPos headOffset = GetHeadBlockOffset(aPosition);
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	114	/** WRITE10 HEAD **/
b2826f67641f 201043_03 hgs parents: 31 diff changeset	115	if (headOffset)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	116	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	117	TPos headpos = aPosition - headOffset;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	118
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	119	iHeadbuf->Zero();
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	120
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	121	RBuf8& buf = *iTailbuf;
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	122	buf.Zero();
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	123
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	124	headlen = ((headOffset + aLength - 1) / iBlockLength) == 0 ? aLength : (iBlockLength - headOffset);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	125
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	126	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_20,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	127	"Write-Read head pos = 0%x %x length = 0%lx",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	128	I64HIGH(headpos), I64LOW(headpos), iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	129
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	130	aProtocol.BlockReadL(headpos, *iHeadbuf, iBlockLength);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	131	/* get head */
b2826f67641f 201043_03 hgs parents: 31 diff changeset	132	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_21,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	133	"tcopying read data pos = 0%x %x offset = 0%lx",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	134	I64HIGH(headpos), I64LOW(headpos), headOffset);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	135	buf.Append(iHeadbuf->Ptr(), headOffset);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	136
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	137	/* get body */
b2826f67641f 201043_03 hgs parents: 31 diff changeset	138	buf.Append(aBuf.Ptr(), headlen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	139
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	140	/* Is it a short write and tail exist? */
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	141	TInt headEndOffset = headOffset + headlen;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	142	if (headEndOffset != iBlockLength)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	143	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	144	TInt len = iBlockLength - headEndOffset;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	145
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	146	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_22,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	147	"(short write) copying read data pos = 0%x %x length = %08x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	148	I64HIGH(headpos + headEndOffset), I64LOW(headpos + headEndOffset), len);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	149	buf.Append(iHeadbuf->Ptr() + headEndOffset, len);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	150	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	151
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	152	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_23,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	153	"Write head pos = 0%x %x length = %08x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	154	I64HIGH(headpos), I64LOW(headpos), headlen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	155
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	156	aProtocol.BlockWriteL(headpos, (TDes8 &)buf, 0, iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	157	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	158
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	159	/** WRITE10 BODY **/
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	160	TPos blocksInMain = (aLength - headlen)/iBlockLength;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	161	if (blocksInMain)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	162	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	163	copylen = blocksInMain * iBlockLength;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	164
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	165	const TUint64 pos = aPosition + headlen;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	166	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_24,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	167	"Write main pos = 0%x %x length = %08x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	168	I64HIGH(pos), I64LOW(pos), copylen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	169
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	170	/* form the body */
b2826f67641f 201043_03 hgs parents: 31 diff changeset	171	aProtocol.BlockWriteL(pos, (TDes8 &)aBuf, headlen, copylen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	172	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	173
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	174	copylen += headlen;
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	175
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	176	/** WRITE10 TAIL **/
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	177	TInt tailLen = aLength - copylen;;
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	178	if (tailLen != 0)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	179	{
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	180	RBuf8& buf = *iHeadbuf;
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	181	buf.Zero();
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	182
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	183	iTailbuf->Zero();
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	184
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	185	const TUint64 pos = aPosition + copylen;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	186
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	187	OstTraceExt3(TRACE_SHOSTMASSSTORAGE_HOST, TBLOCKTRANSFER_25,
b2826f67641f 201043_03 hgs parents: 31 diff changeset	188	"Write-Read tail pos = 0%x %x length = %08x",
b2826f67641f 201043_03 hgs parents: 31 diff changeset	189	I64HIGH(pos), I64LOW(pos), iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	190
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	191	aProtocol.BlockReadL(pos, *iTailbuf, iBlockLength);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	192	/* get head */
b2826f67641f 201043_03 hgs parents: 31 diff changeset	193	buf.Append(aBuf.Ptr() + copylen, tailLen);
b2826f67641f 201043_03 hgs parents: 31 diff changeset	194	/* get tail */
b2826f67641f 201043_03 hgs parents: 31 diff changeset	195	buf.Append(iTailbuf->Ptr() + tailLen, iBlockLength - tailLen);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	196
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	197	aProtocol.BlockWriteL(pos, (TDes8 &)buf, 0, iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	198	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	199	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	200
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	201
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	202	void TBlockTransfer::SetCapacityL(TUint32 aBlockLength, TLba aLastLba)
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	203	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	204	iBlockLength = static_cast<TInt64>(aBlockLength);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	205	iLastLba = aLastLba;
31 56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	206
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	207	__ASSERT_DEBUG(iHeadbuf, User::Invariant());
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	208	__ASSERT_DEBUG(iTailbuf, User::Invariant());
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	209
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	210	if (iHeadbuf->Length() < iBlockLength)
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	211	{
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	212	iHeadbuf->ReAllocL(aBlockLength);
56f325a607ea Revision: 200951 Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> parents: 0 diff changeset	213	iTailbuf->ReAllocL(aBlockLength);
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	214	}
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	215	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	216
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	217
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	218	TPos TBlockTransfer::GetHeadBlockOffset(TPos aPos)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	219	{
297 b2826f67641f 201043_03 hgs parents: 31 diff changeset	220	return (aPos % iBlockLength);
0 a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	221	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	222
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	223	TLba TBlockTransfer::GetHeadBlockLbaL(TPos aPos)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	224	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	225	TLba lba = I64LOW(aPos / iBlockLength);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	226	if (lba > iLastLba)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	227	User::Leave(KErrArgument);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	228	return lba;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	229	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	230
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	231	TPos TBlockTransfer::GetTailBlockOffset(TPos aPos, TInt aLen)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	232	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	233	return ((aPos + aLen) % iBlockLength);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	234	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	235
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	236	TLba TBlockTransfer::GetTailBlockLbaL(TPos aPos, TInt aLen)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	237	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	238	TLba lba = I64LOW((aPos + aLen) / iBlockLength);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	239	if (lba > iLastLba)
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	240	User::Leave(KErrArgument);
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	241	return lba;
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	242	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	243
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	244
a41df078684a Convert Kernelhwsrv package from SFL to EPL John Imhofe parents: diff changeset	245

author	hgs
	Tue, 26 Oct 2010 12:49:20 +0100
changeset 297	b2826f67641f
parent 31	56f325a607ea
permissions	-rw-r--r--