1 //===-- RegisterCheckpoint.h ------------------------------------*- C++ -*-===//
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-exception
7 //===----------------------------------------------------------------------===//
9 #ifndef liblldb_RegisterCheckpoint_h_
10 #define liblldb_RegisterCheckpoint_h_
12 #include "lldb/Target/StackID.h"
13 #include "lldb/Utility/UserID.h"
14 #include "lldb/lldb-private.h"
16 namespace lldb_private {
18 // Inherit from UserID in case pushing/popping all register values can be done
19 // using a 64 bit integer that holds a baton/cookie instead of actually having
20 // to read all register values into a buffer
21 class RegisterCheckpoint : public UserID {
24 // An expression is about to be run on the thread if the protocol that
25 // talks to the debuggee supports checkpointing the registers using a
26 // push/pop then the UserID base class in the RegisterCheckpoint can be
27 // used to store the baton/cookie that refers to the remote saved state.
29 // The register checkpoint wants the raw register bytes, so they must be
30 // read into m_data_sp, or the save/restore checkpoint should fail.
34 RegisterCheckpoint(Reason reason)
35 : UserID(0), m_data_sp(), m_reason(reason) {}
37 ~RegisterCheckpoint() {}
39 lldb::DataBufferSP &GetData() { return m_data_sp; }
41 const lldb::DataBufferSP &GetData() const { return m_data_sp; }
44 lldb::DataBufferSP m_data_sp;
47 // Make RegisterCheckpointSP if you wish to share the data in this class.
48 DISALLOW_COPY_AND_ASSIGN(RegisterCheckpoint);
51 } // namespace lldb_private
53 #endif // liblldb_RegisterCheckpoint_h_