96 lines · cpp
1//===-- GDBRemoteCommunicationHistory.cpp ---------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "GDBRemoteCommunicationHistory.h"10 11// Other libraries and framework includes12#include "lldb/Utility/ConstString.h"13#include "lldb/Utility/Log.h"14 15using namespace llvm;16using namespace lldb;17using namespace lldb_private;18using namespace lldb_private::process_gdb_remote;19 20GDBRemoteCommunicationHistory::GDBRemoteCommunicationHistory(uint32_t size)21 : m_packets() {22 if (size)23 m_packets.resize(size);24}25 26GDBRemoteCommunicationHistory::~GDBRemoteCommunicationHistory() = default;27 28void GDBRemoteCommunicationHistory::AddPacket(char packet_char,29 GDBRemotePacket::Type type,30 uint32_t bytes_transmitted) {31 const size_t size = m_packets.size();32 if (size == 0)33 return;34 35 const uint32_t idx = GetNextIndex();36 m_packets[idx].packet.data.assign(1, packet_char);37 m_packets[idx].type = type;38 m_packets[idx].bytes_transmitted = bytes_transmitted;39 m_packets[idx].packet_idx = m_total_packet_count;40 m_packets[idx].tid = llvm::get_threadid();41}42 43void GDBRemoteCommunicationHistory::AddPacket(const std::string &src,44 uint32_t src_len,45 GDBRemotePacket::Type type,46 uint32_t bytes_transmitted) {47 const size_t size = m_packets.size();48 if (size == 0)49 return;50 51 const uint32_t idx = GetNextIndex();52 m_packets[idx].packet.data.assign(src, 0, src_len);53 m_packets[idx].type = type;54 m_packets[idx].bytes_transmitted = bytes_transmitted;55 m_packets[idx].packet_idx = m_total_packet_count;56 m_packets[idx].tid = llvm::get_threadid();57}58 59void GDBRemoteCommunicationHistory::Dump(Stream &strm) const {60 const uint32_t size = GetNumPacketsInHistory();61 const uint32_t first_idx = GetFirstSavedPacketIndex();62 const uint32_t stop_idx = m_curr_idx + size;63 for (uint32_t i = first_idx; i < stop_idx; ++i) {64 const uint32_t idx = NormalizeIndex(i);65 const GDBRemotePacket &entry = m_packets[idx];66 if (entry.type == GDBRemotePacket::ePacketTypeInvalid ||67 entry.packet.data.empty())68 break;69 strm.Printf("history[%u] ", entry.packet_idx);70 entry.Dump(strm);71 }72}73 74void GDBRemoteCommunicationHistory::Dump(Log *log) const {75 if (!log || m_dumped_to_log)76 return;77 78 m_dumped_to_log = true;79 const uint32_t size = GetNumPacketsInHistory();80 const uint32_t first_idx = GetFirstSavedPacketIndex();81 const uint32_t stop_idx = m_curr_idx + size;82 for (uint32_t i = first_idx; i < stop_idx; ++i) {83 const uint32_t idx = NormalizeIndex(i);84 const GDBRemotePacket &entry = m_packets[idx];85 if (entry.type == GDBRemotePacket::ePacketTypeInvalid ||86 entry.packet.data.empty())87 break;88 LLDB_LOGF(log, "history[%u] tid=0x%4.4" PRIx64 " <%4u> %s packet: %s",89 entry.packet_idx, entry.tid, entry.bytes_transmitted,90 (entry.type == GDBRemotePacket::ePacketTypeSend) ? "send"91 : "read",92 entry.packet.data.c_str());93 }94}95 96