sl@0: // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Simple implementation of stdin/stdout/stderr class which uses a console, created on demand.
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "FDESC.H"
sl@0: #include <e32cons.h>	// for CConsoleBase
sl@0: #include <sys/ioctl.h>
sl@0: 
sl@0: void CTtyDesc::CheckConsoleCreated()
sl@0: 	{
sl@0: 	if (iConsole==NULL)
sl@0: 		{
sl@0: 		TRAPD(r,iConsole=Console::NewL(_L("STDOUT"),TSize(KConsFullScreen,KConsFullScreen)))
sl@0: 		__ASSERT_ALWAYS(r==KErrNone,User::Panic(_L("ESTLIB Console"),0));
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: CTtyDesc::~CTtyDesc()
sl@0: 	{
sl@0: 	CConsoleBase *it = iConsole;
sl@0: 	iConsole = 0;
sl@0: 	delete it;
sl@0: 	}
sl@0: 
sl@0: TInt CTtyDesc::FinalClose()
sl@0: 	{
sl@0: 	CConsoleBase *it = iConsole;
sl@0: 	iConsole = 0;
sl@0: 	if (it)
sl@0: 		{
sl@0: 		// it->SetTitle(_L("Console closed - press any key"));
sl@0: 		it->Printf(_L("Console closed - press any key"));
sl@0: 		it->Getch();
sl@0: 		delete it;
sl@0: 		}
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: void CTtyDesc::Read(TDes8& /*aDesc*/, TRequestStatus& aStatus)
sl@0: 	{
sl@0: 	CheckConsoleCreated();
sl@0: 	// See implemention of Getch() in E32\UBAS\UB_CONS.CPP
sl@0: 	iConsole->Read(aStatus);
sl@0: 	}
sl@0: 
sl@0: void CTtyDesc::ReadCancel()
sl@0: 	{
sl@0: 	if (iConsole)
sl@0: 		iConsole->ReadCancel();
sl@0: 	}
sl@0: 
sl@0: TInt CTtyDesc::ReadCompletion(TDes8& aDesc, TInt aStatus)
sl@0: 	{
sl@0: 	MapCodeAndEcho(aDesc, iConsole->KeyCode());
sl@0: 	return aStatus;
sl@0: 	}
sl@0: 
sl@0: void CTtyDesc::Write(TDes8 &aDesc, TRequestStatus& aStatus)
sl@0: 	{
sl@0: 	Write(aDesc);
sl@0: 	Complete(aStatus, KErrNone);
sl@0: 	}
sl@0: 
sl@0: #if !defined(_UNICODE)
sl@0: void CTtyDesc::Write(TDes8 &aDesc)
sl@0: 	{
sl@0: 	CheckConsoleCreated();
sl@0: 	iConsole->Write(aDesc);
sl@0: 	}
sl@0: #else
sl@0: void CTtyDesc::Write(TDes8 &aDesc)
sl@0: 	{
sl@0: 	CheckConsoleCreated();
sl@0: 
sl@0: 	TInt remaining = aDesc.Length();
sl@0: 	const TText8* cp = aDesc.Ptr();
sl@0: 	while (remaining)
sl@0: 	    {
sl@0: 	    TBuf16<256> buffer;
sl@0: 	    TInt len = Min(remaining, 256);
sl@0: 	    buffer.Copy(TPtrC8(cp, len));
sl@0: 
sl@0: 	    iConsole->Write(buffer);
sl@0: 
sl@0: 	    cp += len;
sl@0: 	    remaining -= len;
sl@0: 	    }
sl@0: 	}
sl@0: #endif
sl@0: 
sl@0: void CTtyDesc::MapCodeAndEcho(TDes8& aDesc, TKeyCode aCode)
sl@0: 	{
sl@0: 	TText8 ch;
sl@0: 
sl@0: 	aDesc.Zero();
sl@0: 	switch (aCode)
sl@0: 	{
sl@0: 	case EKeyPrintScreen:
sl@0: 		return;		// unknowable keycodes are ignored
sl@0: 
sl@0: 	case EKeyEnter:
sl@0: 		ch='\n'; break;
sl@0: 	case EKeyBackspace:
sl@0: 		ch=0x08; break;
sl@0: 	default:
sl@0: 		ch=(TText8)(aCode&0xff);	// who knows - it's not documented
sl@0: 		break;
sl@0: 	}
sl@0: 	aDesc.Append(ch);
sl@0: 	// Could suppress echoing at this point
sl@0: 	Write(aDesc);
sl@0: 	return;
sl@0: 	}
sl@0: 
sl@0: void CTtyDesc::Ioctl(int /*aCmd*/, void* /*aParam*/, TRequestStatus& aStatus)
sl@0: 	{
sl@0: 	// bodge for now - this will become more complicated if we develop a better
sl@0: 	// terminal device implementation
sl@0: 	Complete(aStatus,KErrNone);
sl@0: 	}
sl@0: 
sl@0: TInt CTtyDesc::IoctlCompletion(int aCmd, void* aParam, TInt aStatus)
sl@0: 	{
sl@0: 	TInt ret=aStatus;
sl@0: 	if (ret!=KErrNone)
sl@0: 		return ret;
sl@0: 	int *param=REINTERPRET_CAST(int*,aParam);
sl@0: 	switch (aCmd)
sl@0: 		{
sl@0: 	case E32IONREAD:
sl@0: 		*param=1;	// claim that there is always data available
sl@0: 		break;
sl@0: 	case E32IOSELECT:
sl@0: 		*param=(*param)&(E32SELECT_READ|E32SELECT_WRITE);
sl@0: 		break;
sl@0: 	default:
sl@0: 		ret=KErrNotSupported;
sl@0: 		break;
sl@0: 		}
sl@0: 	return ret;
sl@0: 	}
sl@0: