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//===-- MIDriverBase.cpp ----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MIDriverBase.cpp
//
// Overview: CMIDriverBase implementation.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
// Third party headers:
#include <lldb/API/SBEvent.h>
#include <lldb/API/SBBroadcaster.h>
// In-house headers:
#include "MIDriverBase.h"
//++ ------------------------------------------------------------------------------------
// Details: CMIDriverBase constructor.
// Type: Method.
// Args: None.
// Return: None.
// Throws: None.
//--
CMIDriverBase::CMIDriverBase( void )
: m_pDriverFallThru( nullptr )
, m_pDriverParent( nullptr )
, m_bExitApp( false )
{
}
//++ ------------------------------------------------------------------------------------
// Details: CMIDriverBase destructor.
// Type: Overrideable.
// Args: None.
// Return: None.
// Throws: None.
//--
CMIDriverBase::~CMIDriverBase( void )
{
m_pDriverFallThru = NULL;
}
//++ ------------------------------------------------------------------------------------
// Details: This function allows *this driver to call on another driver to perform work
// should this driver not be able to handle the client data input.
// Type: Overrideable.
// Check the error message if the function returns a failure.
// Type: Overridden.
// Args: vCmd - (R) Command instruction to interpret.
// vwErrMsg - (W) Error description on command failing.
// Return: MIstatus::success - Command succeeded.
// MIstatus::failure - Command failed.
// Throws: None.
//--
bool CMIDriverBase::DoFallThruToAnotherDriver( const CMIUtilString & vCmd, CMIUtilString & vwErrMsg )
{
// Do nothing - override and implement. Use m_pDriverFallThru.
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: This function allows *this driver to call on another driver to perform work
// should this driver not be able to handle the client data input.
// Type: Overrideable.
// Args: vrOtherDriver - (R) Reference to another driver object.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool CMIDriverBase::SetDriverToFallThruTo( const CMIDriverBase & vrOtherDriver )
{
MIunused( vrOtherDriver );
// Do nothing - override and implement. Set m_pDriverFallThru.
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: This function allows *this driver to call functionality on the parent driver
// ask for information for example.
// Type: Overrideable.
// Args: vrOtherDriver - (R) Reference to another driver object.
// Return: MIstatus::success - Functional succeeded.
// MIstatus::failure - Functional failed.
// Throws: None.
//--
bool CMIDriverBase::SetDriverParent( const CMIDriverBase & vrOtherDriver )
{
MIunused( vrOtherDriver );
// Do nothing - override and implement. Set m_pDriverParent.
return MIstatus::success;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the parent driver to *this driver if one assigned. If assigned *this
// is the pass through driver that the parent driver passes work to.
// Type: Method.
// Args: None.
// Return: CMIDriverBase * - Pointer to a driver object.
// - NULL = there is not parent to *this driver.
// Throws: None.
//--
CMIDriverBase * CMIDriverBase::GetDriversParent( void ) const
{
return m_pDriverParent;
}
//++ ------------------------------------------------------------------------------------
// Details: Retrieve the pointer to the other fall through driver *this driver is using
// (or not using).
// Type: Method.
// Args: None.
// Return: CMIDriverBase * - Pointer to other driver.
// - NULL if no driver set.
// Throws: None.
//--
CMIDriverBase * CMIDriverBase::GetDriverToFallThruTo( void ) const
{
return m_pDriverFallThru;
}
//++ ------------------------------------------------------------------------------------
// Details: *this driver provides a file stream to other drivers on which *this driver
// write's out to and they read as expected input. *this driver is passing
// through commands to the (child) pass through assigned driver.
// Type: Overrideable.
// Args: None.
// Return: FILE * - Pointer to stream.
// Throws: None.
//--
FILE * CMIDriverBase::GetStdin( void ) const
{
// Do nothing - override and implement
return nullptr;
}
//++ ------------------------------------------------------------------------------------
// Details: *this driver provides a file stream to other pass through assigned drivers
// so they know what to write to.
// Type: Overrideable.
// Args: None.
// Return: FILE * - Pointer to stream.
// Throws: None.
//--
FILE * CMIDriverBase::GetStdout( void ) const
{
// Do nothing - override and implement
return nullptr;
}
//++ ------------------------------------------------------------------------------------
// Details: *this driver provides a error file stream to other pass through assigned drivers
// so they know what to write to.
// Type: Overrideable.
// Args: None.
// Return: FILE * - Pointer to stream.
// Throws: None.
//--
FILE * CMIDriverBase::GetStderr( void ) const
{
// Do nothing - override and implement
return nullptr;
}
//++ ------------------------------------------------------------------------------------
// Details: Set the MI Driver's exit application flag. The application checks this flag
// after every stdin line is read so the exit may not be instantious.
// If vbForceExit is false the MI Driver queries its state and determines if is
// should exit or continue operating depending on that running state.
// Type: Overrideable.
// Args: vbForceExit - (R) True = Do not query, set state to exit, false = query if can/should exit right now.
// Return: None.
// Throws: None.
//--
void CMIDriverBase::SetExitApplicationFlag( const bool vbForceExit )
{
MIunused( vbForceExit );
// Do nothing - override and implement
}
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