First round of dead file removal

experimental/linux_debug_server/debugger/rsp/rsp_packets.cc

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-#include "debugger/rsp/rsp_common_replies.h"
-#include "debugger/rsp/rsp_control_packets.h"
-#include "debugger/rsp/rsp_info_packets.h"
-#include "debugger/rsp/rsp_packets.h"
-#include "debugger/rsp/rsp_threads_packets.h"
-
-namespace {
-std::map<std::string, rsp::Packet*> packet_factory_;
-
-/// Pops type field from the front of |message|.
-/// @param[in,out] message RSP packet
-/// @param[in] type_hint optional type hint or NULL
-/// @return string with message type
-std::string PopPacketType(debug::Blob* message, const char* type_hint) {
-  if (packet_factory_.size() == 0)
-    rsp::Packet::InitPacketFactory();
-
-  // If |type_hint| is supplied, then message don't have type field,
-  // and there's no point in trying to find it.
-  if (NULL != type_hint)
-    return type_hint;
-
-  // Most commands have no termination, i.e. they are prefixes,
-  // and they should be looked up as we scan characters. The shortest
-  // command to match wins.
-  std::string type;
-  while (message->size() != 0) {
-    char c = message->Front();
-    message->PopFront();
-    type.append(1, c);
-    if (packet_factory_.find(type) != packet_factory_.end())
-      break;
-  }
-  // If packet type is terminated by ':', we should pop it off.
-  message->PopMatchingBytesFromFront(debug::Blob().FromString(" :"));
-  return type;
-}
-}  // namespace
-
-namespace rsp {
-Packet* Packet::CreateFromBlob(debug::Blob* message, const char* type_hint) {
-  RemoveSpacesFromBothEnds(message);
-
-  // Empty message can be a reply to 'm' command, or
-  // can indicate that command is not supported.
-  if ((0 == message->size()) && (NULL == type_hint))
-    return new EmptyPacket;
-
-  // To differentiate [Xc00020304,0:] from [X05] or [X21;process:138c]
-  // I.e. we need to detect if it's a 'X' command (write data to memory, where
-  // the data is transmitted in binary) or 'X' reply (the process terminated
-  // with signal).
-  if ((message->size() > 0) &&
-     ('X' == message->Front()) &&
-     (message->HasByte(',')))
-    return NULL;  // we don't support 'X' command.
-
-  // To differentiate it from 'O' packet (StopReply).
-  if (*message == debug::Blob().FromString("OK"))
-    return new OkReply;
-
-  std::string type = PopPacketType(message, type_hint);
-  if (packet_factory_.find(type) == packet_factory_.end())
-    return NULL;
-
-  Packet* packet = packet_factory_[type]->Clone();
-  if ((NULL != packet) && (!packet->FromBlob(type, message))) {
-    delete packet;
-    packet = NULL;
-  }
-  return packet;
-}
-
-void Packet::InitPacketFactory() {
-  packet_factory_["qSupported"] = new rsp::QuerySupportedCommand;
-  packet_factory_["qSupported$Reply"] = new rsp::QuerySupportedReply;
-  packet_factory_["?"] = new rsp::GetStopReasonCommand;
-  packet_factory_["S"] = new rsp::StopReply(rsp::StopReply::SIGNALED);
-  packet_factory_["X"] = new rsp::StopReply(rsp::StopReply::TERMINATED);
-  packet_factory_["W"] = new rsp::StopReply(rsp::StopReply::EXITED);
-  packet_factory_["O"] = new rsp::StopReply(rsp::StopReply::STILL_RUNNING);
-  packet_factory_["m"] = new rsp::ReadMemoryCommand;
-  packet_factory_["M"] = new rsp::WriteMemoryCommand;
-  packet_factory_["blob$Reply"] = new rsp::BlobReply;
-  packet_factory_["g"] = new rsp::ReadRegistersCommand;
-  packet_factory_["G"] = new rsp::WriteRegistersCommand;
-  packet_factory_["E"] = new rsp::ErrorReply;
-  packet_factory_["OK"] = new rsp::OkReply;
-  packet_factory_["Hg"] =
-      new rsp::SetCurrentThreadCommand(rsp::SetCurrentThreadCommand::FOR_READ);
-  packet_factory_["Hc"] =
-      new rsp::SetCurrentThreadCommand(
-          rsp::SetCurrentThreadCommand::FOR_CONTINUE);
-  packet_factory_["qC"] = new rsp::GetCurrentThreadCommand;
-  packet_factory_["QC"] = new rsp::GetCurrentThreadReply;
-  packet_factory_["c"] = new rsp::ContinueCommand;
-  packet_factory_["s"] = new rsp::StepCommand;
-  packet_factory_["T"] = new rsp::IsThreadAliveCommand;
-  packet_factory_["qXfer:features:read:"] = new rsp::QXferFeaturesReadCommand;
-  packet_factory_["qXfer$Reply"] = new rsp::QXferReply;
-  packet_factory_["qfThreadInfo"] = new rsp::GetThreadInfoCommand;
-  packet_factory_["qsThreadInfo"] = new rsp::GetThreadInfoCommand;
-  packet_factory_["GetThreadInfo$Reply"] = new rsp::GetThreadInfoReply;
-  packet_factory_["qOffsets"] = new rsp::GetOffsetsCommand;
-  packet_factory_["qOffsets$Reply"] = new rsp::GetOffsetsReply;
-}
-
-void Packet::FreePacketFactory() {
-  std::map<std::string, rsp::Packet*>::const_iterator it =
-      packet_factory_.begin();
-  while (it != packet_factory_.end()) {
-    delete it->second;
-    ++it;
-  }
-  packet_factory_.clear();
-}
-}  // namespace rsp
-