author | andy simpson <andrews@symbian.org> |
Fri, 17 Sep 2010 17:50:04 +0100 | |
branch | RCL_3 |
changeset 61 | b670675990af |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
0
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// Copyright (c) 1997-2009 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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// Simple implementation of stdin/stdout/stderr class which uses a console, created on demand. |
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// |
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// |
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|
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#include "FDESC.H" |
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#include <e32cons.h> // for CConsoleBase |
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#include <sys/ioctl.h> |
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|
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void CTtyDesc::CheckConsoleCreated() |
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{ |
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if (iConsole==NULL) |
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{ |
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TRAPD(r,iConsole=Console::NewL(_L("STDOUT"),TSize(KConsFullScreen,KConsFullScreen))) |
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__ASSERT_ALWAYS(r==KErrNone,User::Panic(_L("ESTLIB Console"),0)); |
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} |
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} |
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|
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CTtyDesc::~CTtyDesc() |
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{ |
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CConsoleBase *it = iConsole; |
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iConsole = 0; |
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delete it; |
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} |
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|
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TInt CTtyDesc::FinalClose() |
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{ |
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CConsoleBase *it = iConsole; |
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iConsole = 0; |
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if (it) |
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{ |
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// it->SetTitle(_L("Console closed - press any key")); |
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it->Printf(_L("Console closed - press any key")); |
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it->Getch(); |
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delete it; |
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} |
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return KErrNone; |
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} |
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void CTtyDesc::Read(TDes8& /*aDesc*/, TRequestStatus& aStatus) |
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{ |
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CheckConsoleCreated(); |
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// See implemention of Getch() in E32\UBAS\UB_CONS.CPP |
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iConsole->Read(aStatus); |
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} |
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void CTtyDesc::ReadCancel() |
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{ |
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if (iConsole) |
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iConsole->ReadCancel(); |
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} |
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TInt CTtyDesc::ReadCompletion(TDes8& aDesc, TInt aStatus) |
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{ |
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MapCodeAndEcho(aDesc, iConsole->KeyCode()); |
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return aStatus; |
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} |
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void CTtyDesc::Write(TDes8 &aDesc, TRequestStatus& aStatus) |
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{ |
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Write(aDesc); |
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Complete(aStatus, KErrNone); |
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} |
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#if !defined(_UNICODE) |
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void CTtyDesc::Write(TDes8 &aDesc) |
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{ |
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CheckConsoleCreated(); |
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iConsole->Write(aDesc); |
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} |
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#else |
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void CTtyDesc::Write(TDes8 &aDesc) |
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{ |
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CheckConsoleCreated(); |
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TInt remaining = aDesc.Length(); |
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const TText8* cp = aDesc.Ptr(); |
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while (remaining) |
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{ |
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TBuf16<256> buffer; |
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TInt len = Min(remaining, 256); |
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buffer.Copy(TPtrC8(cp, len)); |
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iConsole->Write(buffer); |
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cp += len; |
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remaining -= len; |
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} |
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} |
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#endif |
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void CTtyDesc::MapCodeAndEcho(TDes8& aDesc, TKeyCode aCode) |
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{ |
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TText8 ch; |
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107 |
|
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108 |
aDesc.Zero(); |
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109 |
switch (aCode) |
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110 |
{ |
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111 |
case EKeyPrintScreen: |
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112 |
return; // unknowable keycodes are ignored |
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113 |
|
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case EKeyEnter: |
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ch='\n'; break; |
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case EKeyBackspace: |
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ch=0x08; break; |
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118 |
default: |
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ch=(TText8)(aCode&0xff); // who knows - it's not documented |
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120 |
break; |
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121 |
} |
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aDesc.Append(ch); |
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// Could suppress echoing at this point |
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Write(aDesc); |
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return; |
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} |
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127 |
|
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void CTtyDesc::Ioctl(int /*aCmd*/, void* /*aParam*/, TRequestStatus& aStatus) |
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129 |
{ |
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// bodge for now - this will become more complicated if we develop a better |
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// terminal device implementation |
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Complete(aStatus,KErrNone); |
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} |
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134 |
|
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TInt CTtyDesc::IoctlCompletion(int aCmd, void* aParam, TInt aStatus) |
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136 |
{ |
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TInt ret=aStatus; |
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if (ret!=KErrNone) |
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return ret; |
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int *param=REINTERPRET_CAST(int*,aParam); |
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switch (aCmd) |
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142 |
{ |
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case E32IONREAD: |
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*param=1; // claim that there is always data available |
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145 |
break; |
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case E32IOSELECT: |
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*param=(*param)&(E32SELECT_READ|E32SELECT_WRITE); |
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148 |
break; |
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149 |
default: |
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ret=KErrNotSupported; |
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151 |
break; |
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152 |
} |
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153 |
return ret; |
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154 |
} |
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155 |