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ff5225bfb6
To support dumping the reproducer's GDB remote packets, we need the (de)serialization logic to live in Utility rather than the GDB remote plugin. This patch renames StreamGDBRemote to GDBRemote and moves the relevant packet code there. Its uses in the GDBRemoteCommunicationHistory and the GDBRemoteCommunicationReplayServer are updated as well. Differential revision: https://reviews.llvm.org/D67523 llvm-svn: 371907
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
//===-- GDBRemoteCommunicationHistory.h--------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef liblldb_GDBRemoteCommunicationHistory_h_
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#define liblldb_GDBRemoteCommunicationHistory_h_
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#include <string>
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#include <vector>
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#include "lldb/Utility/GDBRemote.h"
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#include "lldb/lldb-public.h"
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#include "llvm/Support/YAMLTraits.h"
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#include "llvm/Support/raw_ostream.h"
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namespace lldb_private {
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namespace process_gdb_remote {
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/// The history keeps a circular buffer of GDB remote packets. The history is
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/// used for logging and replaying GDB remote packets.
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class GDBRemoteCommunicationHistory {
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public:
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friend llvm::yaml::MappingTraits<GDBRemoteCommunicationHistory>;
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GDBRemoteCommunicationHistory(uint32_t size = 0);
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~GDBRemoteCommunicationHistory();
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// For single char packets for ack, nack and /x03
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void AddPacket(char packet_char, GDBRemotePacket::Type type,
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uint32_t bytes_transmitted);
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void AddPacket(const std::string &src, uint32_t src_len,
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GDBRemotePacket::Type type, uint32_t bytes_transmitted);
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void Dump(Stream &strm) const;
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void Dump(Log *log) const;
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bool DidDumpToLog() const { return m_dumped_to_log; }
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void SetStream(llvm::raw_ostream *strm) { m_stream = strm; }
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private:
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uint32_t GetFirstSavedPacketIndex() const {
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if (m_total_packet_count < m_packets.size())
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return 0;
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else
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return m_curr_idx + 1;
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}
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uint32_t GetNumPacketsInHistory() const {
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if (m_total_packet_count < m_packets.size())
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return m_total_packet_count;
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else
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return (uint32_t)m_packets.size();
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}
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uint32_t GetNextIndex() {
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++m_total_packet_count;
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const uint32_t idx = m_curr_idx;
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m_curr_idx = NormalizeIndex(idx + 1);
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return idx;
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}
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uint32_t NormalizeIndex(uint32_t i) const {
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return m_packets.empty() ? 0 : i % m_packets.size();
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}
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std::vector<GDBRemotePacket> m_packets;
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uint32_t m_curr_idx;
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uint32_t m_total_packet_count;
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mutable bool m_dumped_to_log;
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llvm::raw_ostream *m_stream = nullptr;
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};
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} // namespace process_gdb_remote
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} // namespace lldb_private
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#endif // liblldb_GDBRemoteCommunicationHistory_h_
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