mirror of
https://github.com/RetroDECK/Duckstation.git
synced 2024-10-23 15:45:42 +00:00
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
#include "gdbconnection.h"
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#include "qthostinterface.h"
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#include "common/log.h"
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#include "core/gdb_protocol.h"
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Log_SetChannel(GDBConnection);
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GDBConnection::GDBConnection(QObject *parent, int descriptor)
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: QThread(parent), m_descriptor(descriptor)
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{
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Log_InfoPrintf("(%u) Accepted new connection on GDB server", m_descriptor);
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connect(&m_socket, &QTcpSocket::readyRead, this, &GDBConnection::receivedData);
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connect(&m_socket, &QTcpSocket::disconnected, this, &GDBConnection::gotDisconnected);
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if (m_socket.setSocketDescriptor(m_descriptor)) {
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QtHostInterface::GetInstance()->pauseSystem(true, true);
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}
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else {
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Log_ErrorPrintf("(%u) Failed to set socket descriptor: %s", m_descriptor, m_socket.errorString().toUtf8().constData());
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}
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}
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void GDBConnection::gotDisconnected()
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{
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Log_InfoPrintf("(%u) Client disconnected", m_descriptor);
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this->exit(0);
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}
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void GDBConnection::receivedData()
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{
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qint64 bytesRead;
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char buffer[256];
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while ((bytesRead = m_socket.read(buffer, sizeof(buffer))) > 0) {
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for (char c : std::string_view(buffer, bytesRead)) {
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m_readBuffer.push_back(c);
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if (GDBProtocol::IsPacketInterrupt(m_readBuffer)) {
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Log_DebugPrintf("(%u) > Interrupt request", m_descriptor);
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QtHostInterface::GetInstance()->pauseSystem(true, true);
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m_readBuffer.erase();
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}
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else if (GDBProtocol::IsPacketContinue(m_readBuffer)) {
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Log_DebugPrintf("(%u) > Continue request", m_descriptor);
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QtHostInterface::GetInstance()->pauseSystem(false, false);
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m_readBuffer.erase();
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}
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else if (GDBProtocol::IsPacketComplete(m_readBuffer)) {
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Log_DebugPrintf("(%u) > %s", m_descriptor, m_readBuffer.c_str());
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writePacket(GDBProtocol::ProcessPacket(m_readBuffer));
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m_readBuffer.erase();
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}
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}
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}
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if (bytesRead == -1) {
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Log_ErrorPrintf("(%u) Failed to read from socket: %s", m_descriptor, m_socket.errorString().toUtf8().constData());
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}
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}
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void GDBConnection::onEmulationPaused(bool paused)
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{
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if (paused) {
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if (m_seen_resume) {
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m_seen_resume = false;
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// Generate a stop reply packet, insert '?' command to generate it.
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writePacket(GDBProtocol::ProcessPacket("$?#3f"));
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}
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}
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else {
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m_seen_resume = true;
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// Send ack, in case GDB sent a continue request.
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writePacket("+");
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}
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}
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void GDBConnection::writePacket(std::string_view packet)
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{
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Log_DebugPrintf("(%u) < %*s", m_descriptor, packet.length(), packet.data());
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if (m_socket.write(packet.data(), packet.length()) == -1) {
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Log_ErrorPrintf("(%u) Failed to write to socket: %s", m_descriptor, m_socket.errorString().toUtf8().constData());
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}
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}
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