mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2025-01-21 07:45:38 +00:00
101 lines
3 KiB
C++
101 lines
3 KiB
C++
// SPDX-FileCopyrightText: 2019-2022 Connor McLaughlin <stenzek@gmail.com> and contributors.
|
|
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
|
|
|
|
#include "gdbconnection.h"
|
|
#include "common/log.h"
|
|
#include "core/gdb_protocol.h"
|
|
#include "qthost.h"
|
|
Log_SetChannel(GDBConnection);
|
|
|
|
GDBConnection::GDBConnection(GDBServer* parent, intptr_t descriptor) : QTcpSocket(parent), m_descriptor(descriptor)
|
|
{
|
|
if (!setSocketDescriptor(descriptor))
|
|
{
|
|
Log_ErrorPrintf("(%" PRIdPTR ") Failed to set socket descriptor: %s", descriptor,
|
|
errorString().toUtf8().constData());
|
|
deleteLater();
|
|
return;
|
|
}
|
|
|
|
connect(g_emu_thread, &EmuThread::systemPaused, this, &GDBConnection::onEmulationPaused);
|
|
connect(g_emu_thread, &EmuThread::systemResumed, this, &GDBConnection::onEmulationResumed);
|
|
connect(this, &QTcpSocket::readyRead, this, &GDBConnection::receivedData);
|
|
connect(this, &QTcpSocket::disconnected, this, &GDBConnection::gotDisconnected);
|
|
|
|
Log_InfoPrintf("(%" PRIdPTR ") Client connected", m_descriptor);
|
|
|
|
m_seen_resume = System::IsPaused();
|
|
g_emu_thread->setSystemPaused(true);
|
|
}
|
|
|
|
void GDBConnection::gotDisconnected()
|
|
{
|
|
Log_InfoPrintf("(%" PRIdPTR ") Client disconnected", m_descriptor);
|
|
deleteLater();
|
|
}
|
|
|
|
void GDBConnection::receivedData()
|
|
{
|
|
qint64 bytesRead;
|
|
char buffer[256];
|
|
|
|
while ((bytesRead = read(buffer, sizeof(buffer))) > 0)
|
|
{
|
|
for (char c : std::string_view(buffer, bytesRead))
|
|
{
|
|
m_readBuffer.push_back(c);
|
|
|
|
if (GDBProtocol::IsPacketInterrupt(m_readBuffer))
|
|
{
|
|
Log_DebugPrintf("(%" PRIdPTR ") > Interrupt request", m_descriptor);
|
|
g_emu_thread->setSystemPaused(true);
|
|
m_readBuffer.erase();
|
|
}
|
|
else if (GDBProtocol::IsPacketContinue(m_readBuffer))
|
|
{
|
|
Log_DebugPrintf("(%" PRIdPTR ") > Continue request", m_descriptor);
|
|
g_emu_thread->setSystemPaused(false);
|
|
m_readBuffer.erase();
|
|
}
|
|
else if (GDBProtocol::IsPacketComplete(m_readBuffer))
|
|
{
|
|
Log_DebugPrintf("(%" PRIdPTR ") > %s", m_descriptor, m_readBuffer.c_str());
|
|
writePacket(GDBProtocol::ProcessPacket(m_readBuffer));
|
|
m_readBuffer.erase();
|
|
}
|
|
}
|
|
}
|
|
if (bytesRead == -1)
|
|
{
|
|
Log_ErrorPrintf("(%" PRIdPTR ") Failed to read from socket: %s", m_descriptor,
|
|
errorString().toUtf8().constData());
|
|
}
|
|
}
|
|
|
|
void GDBConnection::onEmulationPaused()
|
|
{
|
|
if (m_seen_resume)
|
|
{
|
|
m_seen_resume = false;
|
|
// Generate a stop reply packet, insert '?' command to generate it.
|
|
writePacket(GDBProtocol::ProcessPacket("$?#3f"));
|
|
}
|
|
}
|
|
|
|
void GDBConnection::onEmulationResumed()
|
|
{
|
|
m_seen_resume = true;
|
|
// Send ack, in case GDB sent a continue request.
|
|
writePacket("+");
|
|
}
|
|
|
|
void GDBConnection::writePacket(std::string_view packet)
|
|
{
|
|
Log_DebugPrintf("(%" PRIdPTR ") < %.*s", m_descriptor, static_cast<int>(packet.length()), packet.data());
|
|
if (write(packet.data(), packet.length()) == -1)
|
|
{
|
|
Log_ErrorPrintf("(%" PRIdPTR ") Failed to write to socket: %s", m_descriptor,
|
|
errorString().toUtf8().constData());
|
|
}
|
|
}
|