author | hgs |
Wed, 20 Oct 2010 12:04:53 +0800 | |
changeset 59 | bbdce6bffaad |
parent 29 | 59aa7d6e3e0f |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003-2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#include <cs_port.h> |
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#include "AcmReader.h" |
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#include "AcmUtils.h" |
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#include "ActiveReader.h" |
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#include "ActiveReadOneOrMoreReader.h" |
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#include "CdcAcmClass.h" |
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#include "AcmPanic.h" |
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#include "AcmPort.h" |
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#include "OstTraceDefinitions.h" |
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#ifdef OST_TRACE_COMPILER_IN_USE |
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#include "AcmReaderTraces.h" |
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#endif |
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CAcmReader* CAcmReader::NewL(CAcmPort& aPort, |
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TUint aBufSize) |
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/** |
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* Factory function. |
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* |
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* @param aPort The CAcmPort parent. |
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* @param aBufSize The size of the buffer. |
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* @return Ownership of a new CAcmReader. |
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*/ |
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{ |
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OstTraceFunctionEntry0( CACMREADER_NEWL_ENTRY ); |
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CAcmReader* self = new(ELeave) CAcmReader(aPort, aBufSize); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CLEANUPSTACK_POP(self); |
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OstTraceFunctionExit0( CACMREADER_NEWL_EXIT ); |
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return self; |
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} |
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CAcmReader::~CAcmReader() |
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/** |
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* Destructor. |
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*/ |
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{ |
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OstTraceFunctionEntry0( CACMREADER_CACMREADER_DES_ENTRY ); |
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ReadCancel(); |
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delete iBuffer; |
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OstTraceFunctionExit0( CACMREADER_CACMREADER_DES_EXIT ); |
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} |
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CAcmReader::CAcmReader(CAcmPort& aPort, |
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TUint aBufSize) |
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/** |
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* Constructor. |
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* |
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* @param aPort The CPort parent. |
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* @param aBufSize The size of the buffer. |
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*/ |
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: iBufSize(aBufSize), |
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iInBuf(NULL,0,0), |
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iPort(aPort) |
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{ |
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OstTraceFunctionEntry0( CACMREADER_CACMREADER_CONS_ENTRY ); |
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OstTraceFunctionExit0( CACMREADER_CACMREADER_CONS_EXIT ); |
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} |
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void CAcmReader::ConstructL() |
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/** |
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* 2nd-phase construction. |
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*/ |
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{ |
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OstTraceFunctionEntry0( CACMREADER_CONSTRUCTL_ENTRY ); |
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// Create iBuffer. |
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OstTrace0( TRACE_NORMAL, CACMREADER_CONSTRUCTL, "CAcmReader::ConstructL;\tabout to create iBuffer" ); |
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TInt err = SetBufSize(iBufSize); |
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if (err < 0) |
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{ |
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OstTrace1( TRACE_ERROR, CACMREADER_CONSTRUCTL_DUP1, "CAcmReader::ConstructL;err=%d", err ); |
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User::Leave(err); |
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} |
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OstTraceFunctionExit0( CACMREADER_CONSTRUCTL_EXIT ); |
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} |
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void CAcmReader::Read(const TAny* aClientBuffer, TUint aMaxLen) |
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/** |
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* Read API. |
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* |
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* @param aClientBuffer Pointer to the client's memory space. |
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* @param aMaxLen Maximum length to read. |
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*/ |
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{ |
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OstTraceFunctionEntry0( CACMREADER_READ_ENTRY ); |
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OstTraceExt2( TRACE_NORMAL, CACMREADER_READ, "CAcmReader::Read;\taClientBuffer=%p, aMaxLen=%d", aClientBuffer, (TInt)aMaxLen ); |
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// Check we're open to requests and make a note of interesting data. |
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// including iLengthToGo |
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CheckNewRequest(aClientBuffer, aMaxLen); |
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iCurrentRequest.iRequestType = ERead; |
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// A read larger than our internal buffer limit will result in us doing |
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// multiple reads to the ports below. |
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// We used to just refuse the request with a KErrNoMemory. |
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if ( iTerminatorCount == 0 ) |
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{ |
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ReadWithoutTerminators(); |
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} |
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else |
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{ |
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120 |
ReadWithTerminators(); |
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121 |
} |
29 | 122 |
OstTraceFunctionExit0( CACMREADER_READ_EXIT ); |
0
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123 |
} |
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124 |
|
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125 |
void CAcmReader::ReadWithoutTerminators() |
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126 |
/** |
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* Process a read request given that no terminator characters are set. |
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*/ |
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129 |
{ |
29 | 130 |
OstTraceFunctionEntry0( CACMREADER_READWITHOUTTERMINATORS_ENTRY ); |
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// Can we complete immediately from the buffer? |
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132 |
const TUint bufLen = BufLen(); |
29 | 133 |
OstTraceExt2( TRACE_NORMAL, CACMREADER_READWITHOUTTERMINATORS, |
134 |
"CAcmReader::ReadWithoutTerminators;\thave %d bytes in buffer;\tLength to go is %d bytes", |
|
135 |
(TInt)bufLen, (TInt)iLengthToGo ); |
|
0
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if ( iLengthToGo <= bufLen ) |
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137 |
{ |
29 | 138 |
OstTrace1( TRACE_NORMAL, CACMREADER_READWITHOUTTERMINATORS_DUP1, |
139 |
"CAcmReader::ReadWithoutTerminators;\tcompleting " |
|
140 |
"request immediately from buffer with %d bytes", |
|
141 |
(TInt)iLengthToGo ); |
|
142 |
||
0
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143 |
WriteBackData(iLengthToGo); |
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144 |
CompleteRequest(KErrNone); |
29 | 145 |
OstTraceFunctionExit0( CACMREADER_READWITHOUTTERMINATORS_EXIT ); |
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146 |
return; |
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} |
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148 |
|
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149 |
// There isn't enough in the buffer to complete the request, so we write |
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// back as much as we have, and issue a Read for more. |
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151 |
if ( bufLen ) |
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152 |
{ |
29 | 153 |
OstTrace1( TRACE_NORMAL, CACMREADER_READWITHOUTTERMINATORS_DUP2, |
154 |
"CAcmReader::ReadWithoutTerminators;\twriting back %d bytes", (TInt)bufLen ); |
|
0
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// Write back as much data as we've got already. |
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WriteBackData(bufLen); |
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157 |
} |
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158 |
|
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159 |
// Issue a read for the data we still need. |
29 | 160 |
OstTrace1( TRACE_NORMAL, CACMREADER_READWITHOUTTERMINATORS_DUP3, |
161 |
"CAcmReader::ReadWithoutTerminators;iLengthToGo=%d", (TInt)iLengthToGo ); |
|
0
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162 |
IssueRead(); |
29 | 163 |
OstTraceFunctionExit0( CACMREADER_READWITHOUTTERMINATORS_EXIT_DUP1 ); |
0
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164 |
} |
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165 |
|
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166 |
void CAcmReader::ReadWithTerminators() |
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167 |
/** |
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168 |
* Process a read request given that terminator characters are set. |
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169 |
*/ |
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170 |
{ |
29 | 171 |
OstTraceFunctionEntry0( CACMREADER_READWITHTERMINATORS_ENTRY ); |
0
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172 |
// Can we complete immediately from the buffer? Search the buffer we have |
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173 |
// for any terminators. If found, complete back to the client. If not |
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174 |
// found, start issuing ReadOneOrMores until we either find one or run out |
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// of client buffer. |
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176 |
|
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177 |
const TUint bufLen = BufLen(); |
29 | 178 |
OstTrace1( TRACE_NORMAL, CACMREADER_READWITHTERMINATORS, "CAcmReader::ReadWithTerminators;bufLen=%d", (TInt)bufLen ); |
0
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179 |
if ( bufLen ) |
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180 |
{ |
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181 |
CheckForBufferedTerminatorsAndProceed(); |
29 | 182 |
OstTraceFunctionExit0( CACMREADER_READWITHTERMINATORS_EXIT ); |
0
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183 |
return; |
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184 |
} |
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185 |
|
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186 |
// There's no buffered data. Get some. |
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187 |
IssueReadOneOrMore(); |
29 | 188 |
OstTraceFunctionExit0( CACMREADER_READWITHTERMINATORS_EXIT_DUP1 ); |
0
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189 |
} |
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190 |
|
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191 |
void CAcmReader::ReadOneOrMore(const TAny* aClientBuffer, TUint aMaxLen) |
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192 |
/** |
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193 |
* ReadOneOrMore API. Note that this is implemented to completely ignore |
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194 |
* terminator characters. |
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195 |
* |
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196 |
* @param aClientBuffer Pointer to the client's memory space. |
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197 |
* @param aMaxLen Maximum length to read. |
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198 |
*/ |
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|
199 |
{ |
29 | 200 |
OstTraceFunctionEntry0( CACMREADER_READONEORMORE_ENTRY ); |
201 |
OstTraceExt2( TRACE_NORMAL, CACMREADER_READONEORMORE, |
|
202 |
"CAcmReader::ReadOneOrMore;aClientBuffer=%p;aMaxLen=%d", aClientBuffer, (TInt)aMaxLen ); |
|
0
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|
203 |
// Check we're open to requests and make a note of interesting data. |
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|
204 |
CheckNewRequest(aClientBuffer, aMaxLen); |
29 | 205 |
iCurrentRequest.iRequestType = EReadOneOrMore; |
0
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206 |
|
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|
207 |
// Check to see if there's anything in our buffer- if there is, we can |
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208 |
// complete immediately. |
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|
209 |
const TUint bufLen = BufLen(); |
29 | 210 |
OstTrace1( TRACE_NORMAL, CACMREADER_READONEORMORE_DUP1, "CAcmReader::ReadOneOrMore;bufLen=%d", (TInt)bufLen ); |
0
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|
211 |
if ( bufLen ) |
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212 |
{ |
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|
213 |
// Complete request with what's in the buffer |
29 | 214 |
OstTrace1( TRACE_FLOW, CACMREADER_READONEORMORE_DUP2, |
215 |
"CAcmReader::ReadOneOrMore;\tcompleting request immediately from buffer with %d bytes", (TInt)bufLen ); |
|
0
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|
216 |
WriteBackData(bufLen); |
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|
217 |
CompleteRequest(KErrNone); |
29 | 218 |
OstTraceFunctionExit0( CACMREADER_READONEORMORE_EXIT ); |
0
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219 |
return; |
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220 |
} |
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221 |
|
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|
222 |
// Get some more data. |
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|
223 |
IssueReadOneOrMore(); |
29 | 224 |
OstTraceFunctionExit0( CACMREADER_READONEORMORE_EXIT_DUP1 ); |
0
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225 |
} |
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|
226 |
|
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227 |
void CAcmReader::NotifyDataAvailable() |
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228 |
/** |
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229 |
* NotifyDataAvailable API. If a request is pending completes the client with KErrInUse. |
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230 |
*/ |
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|
231 |
{ |
29 | 232 |
OstTraceFunctionEntry0( CACMREADER_NOTIFYDATAAVAILABLE_ENTRY ); |
0
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233 |
if(iCurrentRequest.iClientPtr) // a request is pending |
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234 |
{ |
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|
235 |
iPort.NotifyDataAvailableCompleted(KErrInUse); |
29 | 236 |
OstTraceFunctionExit0( CACMREADER_NOTIFYDATAAVAILABLE_EXIT ); |
0
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237 |
return; |
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238 |
} |
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|
239 |
iCurrentRequest.iClientPtr = iBuffer; |
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240 |
iCurrentRequest.iRequestType = ENotifyDataAvailable; |
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|
241 |
iPort.Acm()->NotifyDataAvailable(*this); |
29 | 242 |
OstTraceFunctionExit0( CACMREADER_NOTIFYDATAAVAILABLE_EXIT_DUP1 ); |
0
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} |
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244 |
|
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void CAcmReader::NotifyDataAvailableCancel() |
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/** |
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* NotifyDataAvailableCancel API. Issues a ReadCancel() to abort pending requests on the LDD |
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* |
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*/ |
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{ |
29 | 251 |
OstTraceFunctionEntry0( CACMREADER_NOTIFYDATAAVAILABLECANCEL_ENTRY ); |
0
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if (ENotifyDataAvailable == iCurrentRequest.iRequestType) |
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{ |
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// Cancel any outstanding request on the LDD. |
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if (iPort.Acm()) |
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{ |
29 | 257 |
OstTrace0( TRACE_NORMAL, CACMREADER_NOTIFYDATAAVAILABLECANCEL, |
258 |
"CAcmReader::NotifyDataAvailableCancel;\tiPort.Acm() exists- calling NotifyDataAvailableCancel() on it" ); |
|
0
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iPort.Acm()->NotifyDataAvailableCancel(); |
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} |
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// Reset our flag to say there's no current outstanding request. What's |
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// already in our buffer can stay there. |
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iCurrentRequest.iClientPtr = NULL; |
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} |
29 | 265 |
OstTraceFunctionExit0( CACMREADER_NOTIFYDATAAVAILABLECANCEL_EXIT ); |
0
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} |
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267 |
|
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void CAcmReader::ReadCancel() |
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/** |
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* Cancel API. Cancels any outstanding (Read or ReadOneOrMore) request. |
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*/ |
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{ |
29 | 273 |
OstTraceFunctionEntry0( CACMREADER_READCANCEL_ENTRY ); |
0
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if (ENotifyDataAvailable != iCurrentRequest.iRequestType) |
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{ |
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// Cancel any outstanding request on the LDD. |
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if (iPort.Acm()) |
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{ |
29 | 279 |
OstTrace0( TRACE_NORMAL, CACMREADER_READCANCEL, |
280 |
"CAcmReader::ReadCancel;\tiPort.Acm() exists- calling ReadCancel on it" ); |
|
0
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iPort.Acm()->ReadCancel(); |
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} |
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283 |
|
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// Reset our flag to say there's no current outstanding request. What's |
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// already in our buffer can stay there. |
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iCurrentRequest.iClientPtr = NULL; |
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} |
29 | 288 |
OstTraceFunctionExit0( CACMREADER_READCANCEL_EXIT ); |
0
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} |
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290 |
|
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TUint CAcmReader::BufLen() const |
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/** |
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* This function returns the amount of data (in bytes) still remaining in the |
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* circular buffer. |
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* |
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* @return Length of data in buffer. |
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*/ |
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298 |
{ |
29 | 299 |
OstTraceFunctionEntry0( CACMREADER_BUFLEN_ENTRY ); |
300 |
OstTrace0( TRACE_NORMAL, CACMREADER_BUFLEN, "CAcmReader::BufLen;>>CAcmReader::BufLen" ); |
|
0
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TUint len = 0; |
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if ( BufWrap() ) |
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|
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{ |
29 | 304 |
OstTrace0( TRACE_NORMAL, CACMREADER_BUFLEN_DUP1, "CAcmReader::BufLen;\tbuf wrapped" ); |
0
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len = iBufSize - ( iOutPtr - iInPtr ); |
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} |
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else |
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|
308 |
{ |
29 | 309 |
OstTrace0( TRACE_NORMAL, CACMREADER_BUFLEN_DUP2, "CAcmReader::BufLen;\tbuf not wrapped" ); |
0
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len = iInPtr - iOutPtr; |
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} |
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|
312 |
|
29 | 313 |
OstTrace1( TRACE_NORMAL, CACMREADER_BUFLEN_DUP3, "CAcmReader::BufLen;len=%d", (TInt)len ); |
314 |
OstTraceFunctionExit0( CACMREADER_BUFLEN_EXIT ); |
|
0
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return len; |
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} |
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|
317 |
|
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|
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void CAcmReader::ResetBuffer() |
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319 |
/** |
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320 |
* Called by the port to clear the buffer. |
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321 |
*/ |
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|
322 |
{ |
29 | 323 |
OstTraceFunctionEntry0( CACMREADER_RESETBUFFER_ENTRY ); |
0
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|
324 |
// A request is outstanding- C32 should protect against this. |
29 | 325 |
if (iCurrentRequest.iClientPtr) |
326 |
{ |
|
327 |
OstTraceExt1( TRACE_FATAL, CACMREADER_RESETBUFFER, |
|
328 |
"CAcmReader::ResetBuffer;iCurrentRequest.iClientPtr=%p", iCurrentRequest.iClientPtr ); |
|
329 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
330 |
} |
|
0
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|
331 |
|
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|
332 |
// Reset the pointers. All data is 'lost'. |
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|
333 |
iOutPtr = iInPtr = iBufStart; |
29 | 334 |
OstTraceFunctionExit0( CACMREADER_RESETBUFFER_EXIT ); |
0
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335 |
} |
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|
336 |
|
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|
337 |
TInt CAcmReader::SetBufSize(TUint aSize) |
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338 |
/** |
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|
339 |
* Called by the port to set the buffer size. Also used as a utility by us to |
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|
340 |
* create the buffer at instantiation. Note that this causes what was in the |
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|
341 |
* buffer at the time to be lost. |
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|
342 |
* |
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|
343 |
* @param aSize The required size of the buffer. |
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344 |
*/ |
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|
345 |
{ |
29 | 346 |
OstTraceFunctionEntry0( CACMREADER_SETBUFSIZE_ENTRY ); |
347 |
OstTrace1( TRACE_NORMAL, CACMREADER_SETBUFSIZE, "CAcmReader::SetBufSize;aSize=%d", (TInt)aSize ); |
|
0
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|
348 |
if ( iCurrentRequest.iClientPtr ) |
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|
349 |
{ |
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Revision: 201001
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|
350 |
// A request is outstanding. C32 does not protect us against this. |
29 | 351 |
OstTrace0( TRACE_NORMAL, CACMREADER_SETBUFSIZE_DUP1, |
352 |
"CAcmReader::SetBufSize;\t***a request is outstanding- returning KErrInUse" ); |
|
353 |
OstTraceFunctionExit0( CACMREADER_SETBUFSIZE_EXIT ); |
|
0
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Revision: 201001
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|
354 |
return KErrInUse; |
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|
355 |
} |
c9bc50fca66e
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|
356 |
|
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|
357 |
// Create the new buffer. |
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|
358 |
HBufC8* newBuf = HBufC8::New(aSize); |
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Revision: 201001
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|
359 |
if ( !newBuf ) |
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Revision: 201001
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|
360 |
{ |
29 | 361 |
OstTrace0( TRACE_NORMAL, CACMREADER_SETBUFSIZE_DUP2, |
362 |
"CAcmReader::SetBufSize;\tfailed to create new buffer- returning KErrNoMemory" ); |
|
363 |
OstTraceFunctionExit0( CACMREADER_SETBUFSIZE_EXIT_DUP1 ); |
|
0
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Revision: 201001
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|
364 |
return KErrNoMemory; |
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Revision: 201001
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|
365 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
366 |
delete iBuffer; |
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
367 |
iBuffer = newBuf; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
368 |
|
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
369 |
// Update pointers etc. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
370 |
TPtr8 ptr = iBuffer->Des(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
371 |
iBufStart = const_cast<TUint8*>(reinterpret_cast<const TUint8*>(ptr.Ptr())); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
372 |
iBufSize = aSize; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
373 |
CheckBufferEmptyAndResetPtrs(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
374 |
|
29 | 375 |
OstTraceFunctionExit0( CACMREADER_SETBUFSIZE_EXIT_DUP2 ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
376 |
return KErrNone; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
377 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
378 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
379 |
void CAcmReader::SetTerminators(const TCommConfigV01& aConfig) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
380 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
381 |
* API to change the terminator characters. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
382 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
383 |
* @param aConfig The new configuration. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
384 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
385 |
{ |
29 | 386 |
OstTraceFunctionEntry0( CACMREADER_SETTERMINATORS_ENTRY ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
387 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
388 |
// C32 protects the port against having config set while there's a request |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
389 |
// outstanding. |
29 | 390 |
if (iCurrentRequest.iClientPtr) |
391 |
{ |
|
392 |
OstTraceExt1( TRACE_FATAL, CACMREADER_SETTERMINATORS_DUP2, |
|
393 |
"CAcmReader::SetTerminators;iCurrentRequest.iClientPtr=%p", iCurrentRequest.iClientPtr ); |
|
394 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
395 |
} |
|
0
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Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
396 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
397 |
iTerminatorCount = aConfig.iTerminatorCount; |
29 | 398 |
OstTrace1( TRACE_NORMAL, CACMREADER_SETTERMINATORS, |
399 |
"CAcmReader::SetTerminators;\tnow %d terminators:", (TInt)iTerminatorCount ); |
|
400 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
401 |
for ( TUint ii = 0; ii < static_cast<TUint>(KConfigMaxTerminators) ; ii++ ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
402 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
403 |
iTerminator[ii] = aConfig.iTerminator[ii]; |
29 | 404 |
OstTrace1( TRACE_NORMAL, CACMREADER_SETTERMINATORS_DUP1, |
405 |
"CAcmReader::SetTerminators;\t\t%d", iTerminator[ii]); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
406 |
} |
29 | 407 |
OstTraceFunctionExit0( CACMREADER_SETTERMINATORS_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
408 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
409 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
410 |
void CAcmReader::ReadCompleted(TInt aError) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
411 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
412 |
* Called by lower classes when an LDD Read completes. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
413 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
414 |
* @param aError Error. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
415 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
416 |
{ |
29 | 417 |
OstTraceFunctionEntry0( CACMREADER_READCOMPLETED_ENTRY ); |
418 |
OstTrace1( TRACE_NORMAL, CACMREADER_READCOMPLETED, |
|
419 |
"CAcmReader::ReadCompleted;>>CAcmReader::ReadCompleted aError=%d", aError ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
420 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
421 |
const TUint justRead = static_cast<TUint>(iInBuf.Length()); |
29 | 422 |
OstTraceExt2( TRACE_NORMAL, CACMREADER_READCOMPLETED_DUP1, |
423 |
"CAcmReader::ReadCompleted;\tiInBuf length=%d, iLengthToGo=%d", (TInt)justRead, (TInt)iLengthToGo ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
424 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
425 |
// This protects against a regression in the LDD- read requests shouldn't |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
426 |
// ever complete with zero bytes and KErrNone. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
427 |
if ( justRead == 0 && aError == KErrNone ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
428 |
{ |
29 | 429 |
OstTrace0( TRACE_FATAL, CACMREADER_READCOMPLETED_DUP3, "CAcmReader::ReadCompleted;ustRead == 0 && aError == KErrNone" ); |
430 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
431 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
432 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
433 |
// The new data will have been added to our buffer. Move iInPtr up by the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
434 |
// length just read. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
435 |
iInPtr += justRead; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
436 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
437 |
if ( aError ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
438 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
439 |
// If the read failed, we complete back to the client and don't do |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
440 |
// anything more. (We don't want to get into retry strategies.) In a |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
441 |
// multi-stage Read the client will get any data already written back |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
442 |
// to them with IPCWrite. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
443 |
CompleteRequest(aError); |
29 | 444 |
OstTraceFunctionExit0( CACMREADER_READCOMPLETED_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
445 |
return; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
446 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
447 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
448 |
// calling this will write the data to the clients address space |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
449 |
// it will also complete the request if we've given the client enough data |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
450 |
// or will reissue another read if not |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
451 |
ReadWithoutTerminators(); |
29 | 452 |
OstTrace0( TRACE_NORMAL, CACMREADER_READCOMPLETED_DUP2, "CAcmReader::ReadCompleted;<<CAcmReader::ReadCompleted" ); |
453 |
OstTraceFunctionExit0( CACMREADER_READCOMPLETED_EXIT_DUP1 ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
454 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
455 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
456 |
void CAcmReader::ReadOneOrMoreCompleted(TInt aError) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
457 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
458 |
* Called by lower classes when an LDD ReadOneOrMore completes. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
459 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
460 |
* @param aError Error. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
461 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
462 |
{ |
29 | 463 |
OstTraceFunctionEntry0( CACMREADER_READONEORMORECOMPLETED_ENTRY ); |
464 |
OstTrace1( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED, |
|
465 |
"CAcmReader::ReadOneOrMoreCompleted;>>CAcmReader::ReadOneOrMoreCompleted aError=%d", aError ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
466 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
467 |
const TUint justRead = static_cast<TUint>(iInBuf.Length()); |
29 | 468 |
OstTrace1( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED_DUP1, |
469 |
"CAcmReader::ReadOneOrMoreCompleted;\tjustRead = %d", (TInt)justRead ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
470 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
471 |
// The new data will have been added to our buffer. Move iInPtr |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
472 |
// up by the length just read. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
473 |
iInPtr += justRead; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
474 |
if ( aError ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
475 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
476 |
// If the ReadOneOrMore failed, we complete back to the client and |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
477 |
// don't do anything more. The client will get any data already |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
478 |
// written back to them with IPCWrite. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
479 |
CompleteRequest(aError); |
29 | 480 |
OstTraceFunctionExit0( CACMREADER_READONEORMORECOMPLETED_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
481 |
return; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
482 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
483 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
484 |
// TODO: may the LDD complete ROOM with zero bytes, eg if a ZLP comes in? |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
485 |
// NB The LDD is at liberty to complete a ReadPacket request with zero |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
486 |
// bytes and KErrNone, if the given packet was zero-length (a ZLP). In |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
487 |
// this case, we have to reissue the packet read until we do get some |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
488 |
// data. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
489 |
if ( justRead == 0 ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
490 |
{ |
29 | 491 |
OstTrace0( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED_DUP2, |
492 |
"CAcmReader::ReadOneOrMoreCompleted;\twe appear to have a ZLP- reissuing ReadOneOrMore" ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
493 |
IssueReadOneOrMore(); |
29 | 494 |
OstTraceFunctionExit0( CACMREADER_READONEORMORECOMPLETED_EXIT_DUP1 ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
495 |
return; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
496 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
497 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
498 |
if ( EReadOneOrMore == iCurrentRequest.iRequestType ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
499 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
500 |
// Complete the client's request with as much data as we can. NB |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
501 |
// Opinion may be divided over whether to do this, or complete with |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
502 |
// just 1 byte. We implement the more generous approach. |
29 | 503 |
OstTrace1( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED_DUP3, |
504 |
"CAcmReader::ReadOneOrMoreCompleted;\tcurrent request is ReadOneOrMore- completing with %d bytes", (TInt)justRead ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
505 |
WriteBackData(justRead); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
506 |
CompleteRequest(KErrNone); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
507 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
508 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
509 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
510 |
// Outstanding request is a Read with terminators. (Except for |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
511 |
// ReadOneOrMore, we only request LDD::ReadOneOrMore in this case.) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
512 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
513 |
// Process the buffer for terminators. |
29 | 514 |
OstTrace0( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED_DUP4, |
515 |
"CAcmReader::ReadOneOrMoreCompleted;\tcurrent request is Read with terminators" ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
516 |
CheckForBufferedTerminatorsAndProceed(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
517 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
518 |
|
29 | 519 |
OstTrace0( TRACE_NORMAL, CACMREADER_READONEORMORECOMPLETED_DUP5, |
520 |
"CAcmReader::ReadOneOrMoreCompleted;<<CAcmReader::ReadOneOrMoreCompleted" ); |
|
521 |
OstTraceFunctionExit0( CACMREADER_READONEORMORECOMPLETED_EXIT_DUP2 ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
522 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
523 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
524 |
void CAcmReader::NotifyDataAvailableCompleted(TInt aError) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
525 |
{ |
29 | 526 |
OstTraceFunctionEntry0( CACMREADER_NOTIFYDATAAVAILABLECOMPLETED_ENTRY ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
527 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
528 |
* Called by lower classes when data has arrived at the LDD after a |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
529 |
* NotifyDataAvailable request has been posted on the port. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
530 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
531 |
* @param aError Error. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
532 |
*/ |
29 | 533 |
OstTrace1( TRACE_NORMAL, CACMREADER_NOTIFYDATAAVAILABLECOMPLETED, |
534 |
"CAcmReader::NotifyDataAvailableCompleted;aError=%d", aError ); |
|
535 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
536 |
// If the NotifyDataAvailable request failed, we complete back |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
537 |
// to the client and don't do anything more. |
29 | 538 |
CompleteRequest(aError); |
539 |
OstTrace0( TRACE_NORMAL, CACMREADER_NOTIFYDATAAVAILABLECOMPLETED_DUP2, "<<CAcmReader::NotifyDataAvailableCompleted" ); |
|
540 |
OstTraceFunctionExit0( CACMREADER_NOTIFYDATAAVAILABLECOMPLETED_EXIT ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
541 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
542 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
543 |
void CAcmReader::CheckBufferEmptyAndResetPtrs() |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
544 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
545 |
* Utility to assert that the buffer is empty and to reset the read and write |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
546 |
* pointers to the beginning of the buffer. We reset them there to cut down on |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
547 |
* fiddling around wrapping at the end of the buffer. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
548 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
549 |
{ |
29 | 550 |
OstTraceFunctionEntry0( CACMREADER_CHECKBUFFEREMPTYANDRESETPTRS_ENTRY ); |
551 |
TInt blen = BufLen(); |
|
552 |
if ( blen != 0 ) |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
553 |
{ |
29 | 554 |
OstTrace1( TRACE_FATAL, CACMREADER_CHECKBUFFEREMPTYANDRESETPTRS, "CAcmReader::CheckBufferEmptyAndResetPtrs;blen=%d", blen ); |
555 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
556 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
557 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
558 |
iOutPtr = iInPtr = iBufStart; |
29 | 559 |
OstTraceFunctionExit0( CACMREADER_CHECKBUFFEREMPTYANDRESETPTRS_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
560 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
561 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
562 |
void CAcmReader::CheckNewRequest(const TAny* aClientBuffer, TUint aMaxLen) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
563 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
564 |
* Utility function to check a Read or ReadOneOrMore request from the port. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
565 |
* Also checks that there isn't a request already outstanding. Makes a note of |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
566 |
* the relevant parameters and sets up internal counters. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
567 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
568 |
* @param aClientBuffer Pointer to the client's memory space. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
569 |
* @param aMaxLen Maximum length to read. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
570 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
571 |
{ |
29 | 572 |
OstTraceFunctionEntry0( CACMREADER_CHECKNEWREQUEST_ENTRY ); |
573 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
574 |
// The port should handle zero-length reads, not us. |
29 | 575 |
if (aMaxLen <= 0) |
576 |
{ |
|
577 |
OstTrace0( TRACE_FATAL, CACMREADER_CHECKNEWREQUEST, "CAcmReader::CheckNewRequest;aMaxLen <= 0" ); |
|
578 |
||
579 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
580 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
581 |
|
29 | 582 |
if (aMaxLen > static_cast<TUint>(KMaxTInt)) |
583 |
{ |
|
584 |
OstTrace0( TRACE_FATAL, CACMREADER_CHECKNEWREQUEST_DUP1, "CAcmReader::CheckNewRequest;aMaxLen > static_cast<TUint>(KMaxTInt)" ); |
|
585 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
586 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
587 |
// Check we have no outstanding request already. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
588 |
if ( iCurrentRequest.iClientPtr )// just panic in case of concurrent Read or ReadOneOrMore queries. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
589 |
{ // in case of NotifyDataAvailable queries, we already have completed the client with KErrInUse. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
590 |
// This code is kept for legacy purpose. That justifies the existence of IsNotifyDataAvailableQueryPending |
29 | 591 |
OstTraceExt1( TRACE_FATAL, CACMREADER_CHECKNEWREQUEST_DUP3, |
592 |
"CAcmReader::CheckNewRequest;iCurrentRequest.iClientPtr=%p", iCurrentRequest.iClientPtr ); |
|
593 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
594 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
595 |
// Sanity check on what C32 gave us. |
29 | 596 |
if (!aClientBuffer) |
597 |
{ |
|
598 |
OstTrace0( TRACE_FATAL, CACMREADER_CHECKNEWREQUEST_DUP2, "CAcmReader::CheckNewRequest;aClientBuffer = NULL" ); |
|
599 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
600 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
601 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
602 |
// Make a note of interesting data. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
603 |
iCurrentRequest.iClientPtr = aClientBuffer; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
604 |
iLengthToGo = aMaxLen; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
605 |
iOffsetIntoClientsMemory = 0; |
29 | 606 |
OstTraceFunctionExit0( CACMREADER_CHECKNEWREQUEST_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
607 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
608 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
609 |
void CAcmReader::CheckForBufferedTerminatorsAndProceed() |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
610 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
611 |
* Checks for terminator characters in the buffer. Completes the client's |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
612 |
* request if possible, and issues further ReadOneOrMores for the appropriate |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
613 |
* amount if not. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
614 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
615 |
{ |
29 | 616 |
OstTraceFunctionEntry0( CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_ENTRY ); |
617 |
||
618 |
TInt ret = FindTerminator(); |
|
619 |
OstTrace1( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP6, |
|
620 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;\tFindTerminator = %d", ret ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
621 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
622 |
if ( ret < KErrNone ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
623 |
{ |
29 | 624 |
OstTrace0( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED, |
625 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;\tno terminator found" ); |
|
626 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
627 |
const TUint bufLen = BufLen(); |
29 | 628 |
OstTrace1( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP1, |
629 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;\tbufLen = %d", (TInt)bufLen ); |
|
630 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
631 |
// No terminator was found. Does the buffer already exceed the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
632 |
// client's descriptor? |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
633 |
if ( bufLen >= iLengthToGo ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
634 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
635 |
// Yes- complete as much data to the client as their |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
636 |
// descriptor can handle. |
29 | 637 |
OstTrace1( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP2, |
638 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;iLengthToGo=%d", (TInt)iLengthToGo ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
639 |
WriteBackData(iLengthToGo); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
640 |
CompleteRequest(KErrNone); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
641 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
642 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
643 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
644 |
// No- write back the data we've got and issue a request to get |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
645 |
// some more data. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
646 |
WriteBackData(bufLen); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
647 |
IssueReadOneOrMore(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
648 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
649 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
650 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
651 |
{ |
29 | 652 |
OstTrace0( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP3, |
653 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;\tterminator found!" ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
654 |
// Will the terminator position fit within the client's descriptor? |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
655 |
if ( static_cast<TUint>(ret) <= iLengthToGo ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
656 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
657 |
// Yes- complete (up to the terminator) back to the client. |
29 | 658 |
OstTrace1( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP4, |
659 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed;\tterminator will fit " |
|
660 |
"in client's descriptor- writing back %d bytes ", (TInt)ret ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
661 |
WriteBackData(static_cast<TUint>(ret)); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
662 |
CompleteRequest(KErrNone); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
663 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
664 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
665 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
666 |
// No- complete as much data to the client as their descriptor can |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
667 |
// handle. |
29 | 668 |
OstTrace1( TRACE_NORMAL, CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_DUP5, |
669 |
"CAcmReader::CheckForBufferedTerminatorsAndProceed; " |
|
670 |
"\tterminator won't fit in client's descriptor- writing back %d bytes", (TInt)iLengthToGo ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
671 |
WriteBackData(iLengthToGo); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
672 |
CompleteRequest(KErrNone); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
673 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
674 |
} |
29 | 675 |
OstTraceFunctionExit0( CACMREADER_CHECKFORBUFFEREDTERMINATORSANDPROCEED_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
676 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
677 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
678 |
void CAcmReader::WriteBackData(TUint aLength) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
679 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
680 |
* This function writes back data to the client address space. The write will |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
681 |
* be performed in one go if the data to be written back is not wrapped across |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
682 |
* the end of the circular buffer. If the data is wrapped, the write is done |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
683 |
* in two stages. The read pointer is updated to reflect the data consumed, as |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
684 |
* is the counter for remaining data required by the client (iLengthToGo), and |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
685 |
* the pointer into the client's memory (iOffsetIntoClientsMemory). |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
686 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
687 |
* @param aLength Amount of data to write back. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
688 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
689 |
{ |
29 | 690 |
OstTraceFunctionEntry0( CACMREADER_WRITEBACKDATA_ENTRY ); |
691 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA, "CAcmReader::WriteBackData;aLength=%d", (TInt)aLength ); |
|
692 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA_DUP1, "CAcmReader::WriteBackData;\tBufLen() = %d", (TInt)BufLen() ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
693 |
|
29 | 694 |
if (aLength > BufLen()) |
695 |
{ |
|
696 |
OstTrace0( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP15, "CAcmReader::WriteBackData;aLength > BufLen()" ); |
|
697 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
698 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
699 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
700 |
const TUint lenBeforeWrap = iBufStart + iBufSize - iOutPtr; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
701 |
|
29 | 702 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA_DUP2, "CAcmReader::WriteBackData;\tiOutPtr=%d", (TInt)(iOutPtr - iBufStart) ); |
703 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA_DUP3, "CAcmReader::WriteBackData;\tiInPtr=%d", (TInt)(iInPtr - iBufStart) ); |
|
704 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA_DUP4, "CAcmReader::WriteBackData;\tiOffsetIntoClientsMemory=%d", (TInt)iOffsetIntoClientsMemory ); |
|
705 |
OstTrace1( TRACE_DUMP, CACMREADER_WRITEBACKDATA_DUP5, "CAcmReader::WriteBackData;\tlenBeforeWrap=%d", (TInt)lenBeforeWrap ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
706 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
707 |
if ( aLength > lenBeforeWrap ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
708 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
709 |
// We'll have to do this in two stages... |
29 | 710 |
OstTrace0( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP6, "CAcmReader::WriteBackData;\twriting back in two stages" ); |
711 |
if (!BufWrap()) |
|
712 |
{ |
|
713 |
OstTrace0( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP16, "CAcmReader::WriteBackData;BufWrap() is NULL" ); |
|
714 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
715 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
716 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
717 |
// Stage 1... |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
718 |
TPtrC8 ptrBeforeWrap(iOutPtr, lenBeforeWrap); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
719 |
TInt err = iPort.IPCWrite(iCurrentRequest.iClientPtr, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
720 |
ptrBeforeWrap, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
721 |
iOffsetIntoClientsMemory); |
29 | 722 |
OstTrace1( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP7, "CAcmReader::WriteBackData;\tIPCWrite = %d", (TInt)err ); |
723 |
if (err) |
|
724 |
{ |
|
725 |
OstTrace1( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP17, "CAcmReader::WriteBackData;err=%d", err ); |
|
726 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
727 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
728 |
static_cast<void>(err); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
729 |
iOffsetIntoClientsMemory += lenBeforeWrap; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
730 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
731 |
// Stage 2... |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
732 |
TInt seg2Len = aLength - lenBeforeWrap; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
733 |
TPtrC8 ptrAfterWrap(iBufStart, seg2Len); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
734 |
err = iPort.IPCWrite(iCurrentRequest.iClientPtr, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
735 |
ptrAfterWrap, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
736 |
iOffsetIntoClientsMemory); |
29 | 737 |
OstTrace1( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP8, "CAcmReader::WriteBackData;\tIPCWrite = %d", (TInt)err ); |
738 |
if (err) |
|
739 |
{ |
|
740 |
OstTrace1( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP18, "CAcmReader::WriteBackData;err=%d", err ); |
|
741 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
742 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
743 |
iOffsetIntoClientsMemory += seg2Len; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
744 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
745 |
// and set the pointers to show that we've consumed the data... |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
746 |
iOutPtr = iBufStart + seg2Len; |
29 | 747 |
OstTrace0( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP9, "CAcmReader::WriteBackData;\twrite in two segments completed" ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
748 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
749 |
else // We can do it in one go... |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
750 |
{ |
29 | 751 |
OstTrace0( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP10, "CAcmReader::WriteBackData;\twriting in one segment" ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
752 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
753 |
TPtrC8 ptr(iOutPtr, aLength); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
754 |
TInt err = iPort.IPCWrite(iCurrentRequest.iClientPtr, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
755 |
ptr, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
756 |
iOffsetIntoClientsMemory); |
29 | 757 |
OstTrace1( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP11, "CAcmReader::WriteBackData;\tIPCWrite = %d", (TInt)err ); |
758 |
if (err) |
|
759 |
{ |
|
760 |
OstTrace1( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP19, "CAcmReader::WriteBackData;err=%d", err ); |
|
761 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
762 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
763 |
static_cast<void>(err); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
764 |
iOffsetIntoClientsMemory += aLength; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
765 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
766 |
// Set the pointers to show that we've consumed the data... |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
767 |
iOutPtr += aLength; |
29 | 768 |
OstTrace0( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP12, "CAcmReader::WriteBackData;\twrite in one segments completed" ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
769 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
770 |
|
29 | 771 |
OstTrace1( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP13, |
772 |
"CAcmReader::WriteBackData;\tiOutPtr=%d", (TInt)(iOutPtr - iBufStart) ); |
|
773 |
OstTrace1( TRACE_NORMAL, CACMREADER_WRITEBACKDATA_DUP14, |
|
774 |
"CAcmReader::WriteBackData;\tiOffsetIntoClientsMemory=%d", (TInt)iOffsetIntoClientsMemory ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
775 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
776 |
// Adjust iLengthToGo |
29 | 777 |
if (iLengthToGo < aLength) |
778 |
{ |
|
779 |
OstTraceExt2( TRACE_FATAL, CACMREADER_WRITEBACKDATA_DUP20, |
|
780 |
"CAcmReader::WriteBackData;iLengthToGo=%d;aLength=%d", (TInt)iLengthToGo, (TInt)aLength ); |
|
781 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
782 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
783 |
iLengthToGo -= aLength; |
29 | 784 |
OstTraceFunctionExit0( CACMREADER_WRITEBACKDATA_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
785 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
786 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
787 |
void CAcmReader::CompleteRequest(TInt aError) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
788 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
789 |
* Utility to reset our 'outstanding request' flag and complete the client's |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
790 |
* request back to them. Does not actually write back data to the client's |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
791 |
* address space. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
792 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
793 |
* @param aError The error code to complete with. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
794 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
795 |
{ |
29 | 796 |
OstTraceFunctionEntry0( CACMREADER_COMPLETEREQUEST_ENTRY ); |
797 |
OstTrace1( TRACE_NORMAL, CACMREADER_COMPLETEREQUEST, "CAcmReader::CompleteRequest;aError=%d", (TInt)aError ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
798 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
799 |
// Set our flag to say that we no longer have an outstanding request. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
800 |
iCurrentRequest.iClientPtr = NULL; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
801 |
if(ENotifyDataAvailable==iCurrentRequest.iRequestType) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
802 |
{ |
29 | 803 |
OstTrace1( TRACE_NORMAL, CACMREADER_COMPLETEREQUEST_DUP1, |
804 |
"CAcmReader::CompleteRequest;\tcalling NotifyDataAvailableCompleted with error %d", aError ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
805 |
iPort.NotifyDataAvailableCompleted(aError); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
806 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
807 |
else // read and readoneormore |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
808 |
{ |
29 | 809 |
OstTrace1( TRACE_NORMAL, CACMREADER_COMPLETEREQUEST_DUP2, |
810 |
"CAcmReader::CompleteRequest;\tcalling ReadCompleted with error %d", aError ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
811 |
iPort.ReadCompleted(aError); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
812 |
} |
29 | 813 |
OstTraceFunctionExit0( CACMREADER_COMPLETEREQUEST_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
814 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
815 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
816 |
void CAcmReader::IssueRead() |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
817 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
818 |
* Issues a read request for N bytes, where N is the minimum of iLengthToGo, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
819 |
* the LDD's limit on Read requests, and how far we are from the end of our |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
820 |
* buffer. Used when trying to satisfy an RComm Read without terminators. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
821 |
* We enforce that the buffer is empty, so we don't have to worry about the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
822 |
* buffer being wrapped and the consequent risk of overwriting. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
823 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
824 |
{ |
29 | 825 |
OstTraceFunctionEntry0( CACMREADER_ISSUEREAD_ENTRY ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
826 |
CheckBufferEmptyAndResetPtrs(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
827 |
|
29 | 828 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREAD, "CAcmReader::IssueRead;iBufSize=%d", (TInt)iBufSize ); |
829 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREAD_DUP1, "CAcmReader::IssueRead;\tiInPtr = %d", (TInt)(iInPtr - iBufStart) ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
830 |
const TUint lenBeforeWrap = iBufStart + iBufSize - iInPtr; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
831 |
|
29 | 832 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREAD_DUP2, "CAcmReader::IssueRead;\tiLengthToGo = %d", (TInt)iLengthToGo ); |
833 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREAD_DUP3, "CAcmReader::IssueRead;\tlenBeforeWrap = %d", (TInt)lenBeforeWrap ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
834 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
835 |
const TUint limit = Min(static_cast<TInt>(iLengthToGo), |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
836 |
static_cast<TInt>(lenBeforeWrap)); |
29 | 837 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREAD_DUP4, "CAcmReader::IssueRead;\tissuing read for %d bytes", (TInt)limit ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
838 |
iInBuf.Set(iInPtr, 0, limit); |
29 | 839 |
if (!iPort.Acm()) |
840 |
{ |
|
841 |
OstTrace0( TRACE_FATAL, CACMREADER_ISSUEREAD_DUP5, "CAcmReader::IssueRead;iPort.Acm() is null" ); |
|
842 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
843 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
844 |
iPort.Acm()->Read(*this, iInBuf, limit); |
29 | 845 |
OstTraceFunctionExit0( CACMREADER_ISSUEREAD_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
846 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
847 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
848 |
void CAcmReader::IssueReadOneOrMore() |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
849 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
850 |
* Issues a read request for N bytes, where N is the minimum of iLengthToGo, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
851 |
* and how far we are from the end of our buffer. Used when trying to satisfy |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
852 |
* an RComm ReadOneOrMore. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
853 |
* We enforce that the buffer is empty, so we don't have to worry about the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
854 |
* buffer being wrapped and the consequent risk of overwriting. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
855 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
856 |
{ |
29 | 857 |
OstTraceFunctionEntry0( CACMREADER_ISSUEREADONEORMORE_ENTRY ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
858 |
CheckBufferEmptyAndResetPtrs(); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
859 |
|
29 | 860 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREADONEORMORE, "CAcmReader::IssueReadOneOrMore;iBufSize=%d", (TInt)iBufSize ); |
861 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREADONEORMORE_DUP1, |
|
862 |
"CAcmReader::IssueReadOneOrMore;\tiInPtr = %d",(TInt)(iInPtr - iBufStart) ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
863 |
const TUint lenBeforeWrap = iBufStart + iBufSize - iInPtr; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
864 |
|
29 | 865 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREADONEORMORE_DUP2, "CAcmReader::IssueReadOneOrMore;iLengthToGo=%d", (TInt)iLengthToGo ); |
866 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREADONEORMORE_DUP3, "CAcmReader::IssueReadOneOrMore;lenBeforeWrap=%d", (TInt)lenBeforeWrap ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
867 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
868 |
const TUint limit1 = Min(static_cast<TInt>(lenBeforeWrap), iLengthToGo); |
29 | 869 |
OstTrace1( TRACE_DUMP, CACMREADER_ISSUEREADONEORMORE_DUP4, |
870 |
"CAcmReader::IssueReadOneOrMore;\tissuing read one or more for %d bytes", (TInt)limit1 ); |
|
871 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
872 |
iInBuf.Set(iInPtr, 0, limit1); |
29 | 873 |
if (!iPort.Acm()) |
874 |
{ |
|
875 |
OstTrace0( TRACE_FATAL, CACMREADER_ISSUEREADONEORMORE_DUP5, "CAcmReader::IssueReadOneOrMore;iPort.Acm() is null" ); |
|
876 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
877 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
878 |
iPort.Acm()->ReadOneOrMore(*this, iInBuf, limit1); |
29 | 879 |
OstTraceFunctionExit0( CACMREADER_ISSUEREADONEORMORE_EXIT ); |
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
880 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
881 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
882 |
TInt CAcmReader::FindTerminator() const |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
883 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
884 |
* This function searches the circular buffer for one of a number of |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
885 |
* termination characters. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
886 |
* The search is conducted between the read and write pointers. The function |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
887 |
* copes with the wrapping of the buffer. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
888 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
889 |
* @return If positive: the number of bytes between where iOutPtr is pointing |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
890 |
* at and where the terminator was found inclusive. Takes wrapping into |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
891 |
* account. If negative: error. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
892 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
893 |
{ |
29 | 894 |
OstTraceFunctionEntry0( CACMREADER_FINDTERMINATOR_ENTRY ); |
895 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
896 |
TInt pos = 0; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
897 |
TInt ret = KErrNone; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
898 |
if ( !BufWrap() ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
899 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
900 |
ret = PartialFindTerminator(iOutPtr, iInPtr, pos); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
901 |
if ( !ret ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
902 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
903 |
// Buffer wasn't wrapped, terminator found. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
904 |
ret = pos; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
905 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
906 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
907 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
908 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
909 |
ret = PartialFindTerminator(iOutPtr, iBufStart+iBufSize, pos); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
910 |
if ( !ret ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
911 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
912 |
// Buffer was wrapped, but terminator was found in the section |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
913 |
// before the wrap. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
914 |
ret = pos; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
915 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
916 |
else |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
917 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
918 |
ret = PartialFindTerminator(iBufStart, iInPtr, pos); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
919 |
if ( !ret ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
920 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
921 |
// Buffer was wrapped, terminator was found in the wrapped |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
922 |
// section. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
923 |
const TUint lenBeforeWrap = iBufStart + iBufSize - iOutPtr; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
924 |
ret = pos + lenBeforeWrap; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
925 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
926 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
927 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
928 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
929 |
// Check we're returning what we said we would. |
29 | 930 |
if (ret == KErrNone) |
931 |
{ |
|
932 |
OstTrace0( TRACE_FATAL, CACMREADER_FINDTERMINATOR_DUP1, "CAcmReader::FindTerminator;ret == KErrNone" ); |
|
933 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
934 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
935 |
|
29 | 936 |
OstTrace1( TRACE_NORMAL, CACMREADER_FINDTERMINATOR, "CAcmReader::FindTerminator;ret=%d", ret ); |
937 |
OstTraceFunctionExit0( CACMREADER_FINDTERMINATOR_EXIT ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
938 |
return ret; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
939 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
940 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
941 |
TInt CAcmReader::PartialFindTerminator(TUint8* aFrom, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
942 |
TUint8* aTo, |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
943 |
TInt& aPos) const |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
944 |
/** |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
945 |
* This function searches the buffer for one of a number of termination |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
946 |
* characters. The search is conducted between the pointers given. The |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
947 |
* function only searches a continuous buffer space, and does not respect the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
948 |
* circular buffer wrap. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
949 |
* |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
950 |
* @param aFrom The pointer at which to start searching. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
951 |
* @param aTo The pointer one beyond where to stop searching. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
952 |
* @param aPos The number of bytes beyond (and including) aFrom the terminator |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
953 |
* was found. That is, if the terminator was found adjacent to aFrom, aPos |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
954 |
* will be 2- the client can take this as meaning that 2 bytes are to be |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
955 |
* written back to the RComm client (aFrom and the one containing the |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
956 |
* terminator). |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
957 |
* @return KErrNone- a terminator was found. KErrNotFound- no terminator was |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
958 |
* found. |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
959 |
*/ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
960 |
{ |
29 | 961 |
OstTraceFunctionEntry0( CACMREADER_PARTIALFINDTERMINATOR_ENTRY ); |
962 |
||
59 | 963 |
//change aPos from 1 to 0 since RComm::read will return part of the terminator string if aPos = 1 |
964 |
aPos = 0; |
|
29 | 965 |
OstTraceExt2( TRACE_NORMAL, CACMREADER_PARTIALFINDTERMINATOR, |
966 |
"CAcmReader::PartialFindTerminator;\taFrom=%d, aTo=%d", (TInt)(aFrom-iBufStart), (TInt)(aTo-iBufStart) ); |
|
967 |
||
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
968 |
for ( TUint8* p = aFrom ; p < aTo ; p++, aPos++ ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
969 |
{ |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
970 |
for ( TUint i = 0 ; i < iTerminatorCount ; i++ ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
971 |
{ |
29 | 972 |
if (!p) |
973 |
{ |
|
974 |
OstTraceExt1( TRACE_FATAL, CACMREADER_PARTIALFINDTERMINATOR_DUP3, "CAcmReader::PartialFindTerminator;p=%p", p ); |
|
975 |
__ASSERT_DEBUG( EFalse, User::Panic(KAcmPanicCat, EPanicInternalError) ); |
|
976 |
} |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
977 |
if ( *p == iTerminator[i] ) |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
978 |
{ |
29 | 979 |
OstTraceExt2( TRACE_FLOW, CACMREADER_PARTIALFINDTERMINATOR_DUP1, |
980 |
"CAcmReader::PartialFindTerminator;\tterminator %d found at aPos %d", (TInt)iTerminator[i], (TInt)aPos ); |
|
981 |
OstTraceFunctionExit0( CACMREADER_PARTIALFINDTERMINATOR_EXIT ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
982 |
return KErrNone; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
983 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
984 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
985 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
986 |
|
29 | 987 |
OstTrace0( TRACE_NORMAL, CACMREADER_PARTIALFINDTERMINATOR_DUP2, "CAcmReader::PartialFindTerminator;\tno terminator found" ); |
988 |
OstTraceFunctionExit0( CACMREADER_PARTIALFINDTERMINATOR_EXIT_DUP2 ); |
|
0
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
989 |
return KErrNotFound; |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
990 |
} |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
991 |
|
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
992 |
// |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
993 |
// End of file |