text: //===-- NativeProcessNetBSD.h --------------------------------- -*- C++ -*-===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef liblldb_NativeProcessNetBSD_H_
  #define liblldb_NativeProcessNetBSD_H_
  
  #include "Plugins/Process/POSIX/NativeProcessELF.h"
  #include "lldb/Target/MemoryRegionInfo.h"
  #include "lldb/Utility/ArchSpec.h"
  #include "lldb/Utility/FileSpec.h"
  
  #include "NativeThreadNetBSD.h"
  
  namespace lldb_private {
  namespace process_netbsd {
  /// \class NativeProcessNetBSD
  /// Manages communication with the inferior (debugee) process.
  ///
  /// Upon construction, this class prepares and launches an inferior process
  /// for debugging.
  ///
  /// Changes in the inferior process state are broadcasted.
  class NativeProcessNetBSD : public NativeProcessELF {
  public:
    class Factory : public NativeProcessProtocol::Factory {
    public:
      llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
      Launch(ProcessLaunchInfo &launch_info, NativeDelegate &native_delegate,
             MainLoop &mainloop) const override;
  
      llvm::Expected<std::unique_ptr<NativeProcessProtocol>>
      Attach(lldb::pid_t pid, NativeDelegate &native_delegate,
             MainLoop &mainloop) const override;
    };
  
    // NativeProcessProtocol Interface
    Status Resume(const ResumeActionList &resume_actions) override;
  
    Status Halt() override;
  
    Status Detach() override;
  
    Status Signal(int signo) override;
  
    Status Interrupt() override;
  
    Status Kill() override;
  
    Status GetMemoryRegionInfo(lldb::addr_t load_addr,
                               MemoryRegionInfo &range_info) override;
  
    Status ReadMemory(lldb::addr_t addr, void *buf, size_t size,
                      size_t &bytes_read) override;
  
    Status WriteMemory(lldb::addr_t addr, const void *buf, size_t size,
                       size_t &bytes_written) override;
  
    lldb::addr_t GetSharedLibraryInfoAddress() override;
  
    size_t UpdateThreads() override;
  
    const ArchSpec &GetArchitecture() const override { return m_arch; }
  
    Status SetBreakpoint(lldb::addr_t addr, uint32_t size,
                         bool hardware) override;
  
    Status GetLoadedModuleFileSpec(const char *module_path,
                                   FileSpec &file_spec) override;
  
    Status GetFileLoadAddress(const llvm::StringRef &file_name,
                              lldb::addr_t &load_addr) override;
  
    llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
    GetAuxvData() const override;
  
    // Interface used by NativeRegisterContext-derived classes.
    static Status PtraceWrapper(int req, lldb::pid_t pid, void *addr = nullptr,
                                int data = 0, int *result = nullptr);
  
  private:
    MainLoop::SignalHandleUP m_sigchld_handle;
    ArchSpec m_arch;
    LazyBool m_supports_mem_region = eLazyBoolCalculate;
    std::vector<std::pair<MemoryRegionInfo, FileSpec>> m_mem_region_cache;
  
    // Private Instance Methods
    NativeProcessNetBSD(::pid_t pid, int terminal_fd, NativeDelegate &delegate,
                        const ArchSpec &arch, MainLoop &mainloop);
  
    bool HasThreadNoLock(lldb::tid_t thread_id);
  
    NativeThreadNetBSD &AddThread(lldb::tid_t thread_id);
    void RemoveThread(lldb::tid_t thread_id);
  
    void MonitorCallback(lldb::pid_t pid, int signal);
    void MonitorExited(lldb::pid_t pid, WaitStatus status);
    void MonitorSIGSTOP(lldb::pid_t pid);
    void MonitorSIGTRAP(lldb::pid_t pid);
    void MonitorSignal(lldb::pid_t pid, int signal);
  
    Status PopulateMemoryRegionCache();
    void SigchldHandler();
  
    Status Attach();
    Status ReinitializeThreads();
  };
  
  } // namespace process_netbsd
  } // namespace lldb_private
  
  #endif // #ifndef liblldb_NativeProcessNetBSD_H_
  