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//===-- MICmnStreamStdinWindows.h -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MIUtilStreamStdin.h
//
// Overview: CMICmnStreamStdinWindows interface.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
#pragma once
// In-house headers:
#include "MICmnBase.h"
#include "MICmnStreamStdin.h"
#include "MIUtilSingletonBase.h"
//++ ============================================================================
// Details: MI common code class. Specific OS stdin handling implementation.
// CMICmnStreamStdin instance is set with stdin handler before using the
// the stream. An instance of this class must be set up and ready to give
// to the CMICmnStreamStdin before it initialises other CMICmnStreamStdin
// will give an error.
// Gotchas: None.
// Authors: Illya Rudkin 16/06/2014.
// Changes: None.
//--
class CMICmnStreamStdinWindows
: public CMICmnBase
, public CMICmnStreamStdin::IOSStdinHandler
, public MI::ISingleton< CMICmnStreamStdinWindows >
{
// Give singleton access to private constructors
friend MI::ISingleton< CMICmnStreamStdinWindows >;
// Methods:
public:
bool Initialize( void );
bool Shutdown( void );
// Overridden:
public:
// From CMICmnStreamStdin::IOSpecificReadStreamStdin
virtual bool InputAvailable( bool & vwbAvail );
virtual const MIchar * ReadLine( CMIUtilString & vwErrMsg );
// Methods:
private:
/* ctor */ CMICmnStreamStdinWindows( void );
/* ctor */ CMICmnStreamStdinWindows( const CMICmnStreamStdinWindows & );
void operator=( const CMICmnStreamStdinWindows & );
//
bool InputAvailableConsoleWin( bool & vwbAvail );
bool InputAvailableApplication( bool & vwbAvail );
// Overridden:
private:
// From CMICmnBase
/* dtor */ virtual ~CMICmnStreamStdinWindows( void );
// Attributes:
private:
const MIuint m_constBufferSize;
FILE * m_pStdin;
MIchar * m_pCmdBuffer;
MIchar * m_pStdinBuffer; // Custom buffer to store std input
MIuint m_nBytesToBeRead; // Checks that ::fgets() is holding on to data while ::PeekNamedPipe() returns nothing which causes a problem
bool m_bRunningInConsoleWin; // True = The application is being run in a Windows command line prompt window, false = by other means
};
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