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//===-- HistoryThread.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_HistoryThread_h_
#define liblldb_HistoryThread_h_
#include <mutex>
#include "lldb/Core/UserSettingsController.h"
#include "lldb/Target/ExecutionContextScope.h"
#include "lldb/Target/StackFrameList.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/Broadcaster.h"
#include "lldb/Utility/Event.h"
#include "lldb/Utility/UserID.h"
#include "lldb/lldb-private.h"
namespace lldb_private {
//----------------------------------------------------------------------
/// @class HistoryThread HistoryThread.h "HistoryThread.h"
/// A thread object representing a backtrace from a previous point in the
/// process execution
///
/// This subclass of Thread is used to provide a backtrace from earlier in
/// process execution. It is given a backtrace list of pc addresses and
/// optionally a stop_id of when those pc addresses were collected, and it
/// will create stack frames for them.
//----------------------------------------------------------------------
class HistoryThread : public lldb_private::Thread {
public:
HistoryThread(lldb_private::Process &process, lldb::tid_t tid,
std::vector<lldb::addr_t> pcs, uint32_t stop_id,
bool stop_id_is_valid);
~HistoryThread() override;
lldb::RegisterContextSP GetRegisterContext() override;
lldb::RegisterContextSP
CreateRegisterContextForFrame(StackFrame *frame) override;
void RefreshStateAfterStop() override {}
bool CalculateStopInfo() override { return false; }
void SetExtendedBacktraceToken(uint64_t token) override {
m_extended_unwind_token = token;
}
uint64_t GetExtendedBacktraceToken() override {
return m_extended_unwind_token;
}
const char *GetQueueName() override { return m_queue_name.c_str(); }
void SetQueueName(const char *name) override { m_queue_name = name; }
lldb::queue_id_t GetQueueID() override { return m_queue_id; }
void SetQueueID(lldb::queue_id_t queue) override { m_queue_id = queue; }
const char *GetThreadName() { return m_thread_name.c_str(); }
uint32_t GetExtendedBacktraceOriginatingIndexID() override;
void SetThreadName(const char *name) { m_thread_name = name; }
const char *GetName() override { return m_thread_name.c_str(); }
void SetName(const char *name) override { m_thread_name = name; }
protected:
virtual lldb::StackFrameListSP GetStackFrameList();
mutable std::mutex m_framelist_mutex;
lldb::StackFrameListSP m_framelist;
std::vector<lldb::addr_t> m_pcs;
uint32_t m_stop_id;
bool m_stop_id_is_valid;
uint64_t m_extended_unwind_token;
std::string m_queue_name;
std::string m_thread_name;
lldb::tid_t m_originating_unique_thread_id;
lldb::queue_id_t m_queue_id;
};
} // namespace lldb_private
#endif // liblldb_HistoryThread_h_
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