//===-- ProcessWindows.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_Plugins_Process_Windows_Common_ProcessWindows_H_
#define liblldb_Plugins_Process_Windows_Common_ProcessWindows_H_

// Other libraries and framework includes
#include "lldb/Target/Process.h"
#include "lldb/Utility/Status.h"
#include "lldb/lldb-forward.h"

#include "llvm/Support/Mutex.h"

#include "IDebugDelegate.h"

namespace lldb_private {

class HostProcess;
class ProcessWindowsData;

class ProcessWindows : public Process, public IDebugDelegate {
public:
  //------------------------------------------------------------------
  // Static functions.
  //------------------------------------------------------------------
  static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp,
                                        lldb::ListenerSP listener_sp,
                                        const FileSpec *);

  static void Initialize();

  static void Terminate();

  static lldb_private::ConstString GetPluginNameStatic();

  static const char *GetPluginDescriptionStatic();

  //------------------------------------------------------------------
  // Constructors and destructors
  //------------------------------------------------------------------
  ProcessWindows(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp);

  ~ProcessWindows();

  size_t GetSTDOUT(char *buf, size_t buf_size, Status &error) override;
  size_t GetSTDERR(char *buf, size_t buf_size, Status &error) override;
  size_t PutSTDIN(const char *buf, size_t buf_size, Status &error) override;

  // lldb_private::Process overrides
  ConstString GetPluginName() override;
  uint32_t GetPluginVersion() override;

  Status EnableBreakpointSite(BreakpointSite *bp_site) override;
  Status DisableBreakpointSite(BreakpointSite *bp_site) override;

  Status DoDetach(bool keep_stopped) override;
  Status DoLaunch(Module *exe_module, ProcessLaunchInfo &launch_info) override;
  Status DoAttachToProcessWithID(
      lldb::pid_t pid,
      const lldb_private::ProcessAttachInfo &attach_info) override;
  Status DoResume() override;
  Status DoDestroy() override;
  Status DoHalt(bool &caused_stop) override;

  void DidLaunch() override;
  void DidAttach(lldb_private::ArchSpec &arch_spec) override;

  void RefreshStateAfterStop() override;

  bool CanDebug(lldb::TargetSP target_sp,
                bool plugin_specified_by_name) override;
  bool DestroyRequiresHalt() override { return false; }
  bool UpdateThreadList(ThreadList &old_thread_list,
                        ThreadList &new_thread_list) override;
  bool IsAlive() override;

  size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
                      Status &error) override;
  size_t DoWriteMemory(lldb::addr_t vm_addr, const void *buf, size_t size,
                       Status &error) override;
  Status GetMemoryRegionInfo(lldb::addr_t vm_addr,
                             MemoryRegionInfo &info) override;

  lldb::addr_t GetImageInfoAddress() override;

  // IDebugDelegate overrides.
  void OnExitProcess(uint32_t exit_code) override;
  void OnDebuggerConnected(lldb::addr_t image_base) override;
  ExceptionResult OnDebugException(bool first_chance,
                                   const ExceptionRecord &record) override;
  void OnCreateThread(const HostThread &thread) override;
  void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
  void OnLoadDll(const ModuleSpec &module_spec,
                 lldb::addr_t module_addr) override;
  void OnUnloadDll(lldb::addr_t module_addr) override;
  void OnDebugString(const std::string &string) override;
  void OnDebuggerError(const Status &error, uint32_t type) override;

private:
  Status WaitForDebuggerConnection(DebuggerThreadSP debugger,
                                   HostProcess &process);

  // These decode the page protection bits.
  static bool IsPageReadable(uint32_t protect);
  static bool IsPageWritable(uint32_t protect);
  static bool IsPageExecutable(uint32_t protect);

  llvm::sys::Mutex m_mutex;
  std::unique_ptr<ProcessWindowsData> m_session_data;
};
}

#endif // liblldb_Plugins_Process_Windows_Common_ProcessWindows_H_