llvm-project/lldb/source/Utility/StringExtractorGDBRemote.cpp

90 lines
1.7 KiB
C++

//===-- StringExtractorGDBRemote.cpp ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "Utility/StringExtractorGDBRemote.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
StringExtractorGDBRemote::Type
StringExtractorGDBRemote::GetType () const
{
if (m_packet.empty())
return eUnsupported;
switch (m_packet[0])
{
case 'E':
if (m_packet.size() == 3 &&
isxdigit(m_packet[1]) &&
isxdigit(m_packet[2]))
return eError;
break;
case 'O':
if (m_packet.size() == 2 && m_packet[1] == 'K')
return eOK;
break;
case '+':
if (m_packet.size() == 1)
return eAck;
break;
case '-':
if (m_packet.size() == 1)
return eNack;
break;
}
return eResponse;
}
bool
StringExtractorGDBRemote::IsOKPacket() const
{
return GetType () == eOK;
}
bool
StringExtractorGDBRemote::IsUnsupportedPacket() const
{
return GetType () == eUnsupported;
}
bool
StringExtractorGDBRemote::IsNormalPacket() const
{
return GetType () == eResponse;
}
bool
StringExtractorGDBRemote::IsErrorPacket() const
{
return GetType () == eError &&
m_packet.size() == 3 &&
isxdigit(m_packet[1]) &&
isxdigit(m_packet[2]);
}
uint8_t
StringExtractorGDBRemote::GetError ()
{
if (GetType() == eError)
{
SetFilePos(1);
return GetHexU8(255);
}
return 0;
}