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//===-- RegisterCheckpoint.h ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_RegisterCheckpoint_h_
#define liblldb_RegisterCheckpoint_h_
#include "lldb/lldb-private.h"
#include "lldb/Core/UserID.h"
#include "lldb/Target/StackID.h"
namespace lldb_private {
// Inherit from UserID in case pushing/popping all register values can be
// done using a 64 bit integer that holds a baton/cookie instead of actually
// having to read all register values into a buffer
class RegisterCheckpoint : public UserID
{
public:
enum class Reason {
// An expression is about to be run on the thread if the protocol that
// talks to the debuggee supports checkpointing the registers using a
// push/pop then the UserID base class in the RegisterCheckpoint can
// be used to store the baton/cookie that refers to the remote saved
// state.
eExpression,
// The register checkpoint wants the raw register bytes, so they must
// be read into m_data_sp, or the save/restore checkpoint should fail.
eDataBackup
};
RegisterCheckpoint(Reason reason) :
UserID(0),
m_data_sp (),
m_reason(reason)
{
}
~RegisterCheckpoint()
{
}
lldb::DataBufferSP &
GetData()
{
return m_data_sp;
}
const lldb::DataBufferSP &
GetData() const
{
return m_data_sp;
}
protected:
lldb::DataBufferSP m_data_sp;
Reason m_reason;
// Make RegisterCheckpointSP if you wish to share the data in this class.
DISALLOW_COPY_AND_ASSIGN(RegisterCheckpoint);
};
} // namespace lldb_private
#endif // liblldb_RegisterCheckpoint_h_
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