BloomPatched/src/DebugServers/GdbRsp/CommandPackets/ReadMemory.cpp

#include "ReadMemory.hpp"

#include "src/DebugServers/GdbRsp/GdbRspDebugServer.hpp"

namespace Bloom::DebugServers::Gdb::CommandPackets
{
    using namespace Bloom::Exceptions;

    void ReadMemory::dispatchToHandler(Gdb::GdbRspDebugServer& gdbRspDebugServer) {
        gdbRspDebugServer.handleGdbPacket(*this);
    }

    void ReadMemory::init() {
        if (this->data.size() < 4) {
            throw Exception("Invalid packet length");
        }

        auto packetString = QString::fromLocal8Bit(
            reinterpret_cast<const char*>(this->data.data() + 1),
            static_cast<int>(this->data.size() - 1)
        );

        /*
         * The read memory ('m') packet consists of two segments, an address and a number of bytes to read.
         * These are separated by a comma character.
         */
        auto packetSegments = packetString.split(",");

        if (packetSegments.size() != 2) {
            throw Exception(
                "Unexpected number of segments in packet data: " + std::to_string(packetSegments.size())
            );
        }

        bool conversionStatus = false;
        this->startAddress = packetSegments.at(0).toUInt(&conversionStatus, 16);

        if (!conversionStatus) {
            throw Exception("Failed to parse start address from read memory packet data");
        }

        this->bytes = packetSegments.at(1).toUInt(&conversionStatus, 16);

        if (!conversionStatus) {
            throw Exception("Failed to parse read length from read memory packet data");
        }
    }
}