Host/windows/ConnectionGenericFileWindows.h

0001 //===-- ConnectionGenericFileWindows.h --------------------------*- C++ -*-===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef liblldb_Host_windows_ConnectionGenericFileWindows_h_
0010 #define liblldb_Host_windows_ConnectionGenericFileWindows_h_
0011
0012 #include "lldb/Host/windows/windows.h"
0013 #include "lldb/Utility/Connection.h"
0014 #include "lldb/lldb-types.h"
0015
0016 namespace lldb_private {
0017
0018 class Status;
0019
0020 class ConnectionGenericFile : public lldb_private::Connection {
0021 public:
0022   ConnectionGenericFile();
0023
0024   ConnectionGenericFile(lldb::file_t file, bool owns_file);
0025
0026   ~ConnectionGenericFile() override;
0027
0028   bool IsConnected() const override;
0029
0030   lldb::ConnectionStatus Connect(llvm::StringRef s, Status *error_ptr) override;
0031
0032   lldb::ConnectionStatus Disconnect(Status *error_ptr) override;
0033
0034   size_t Read(void *dst, size_t dst_len, const Timeout<std::micro> &timeout,
0035               lldb::ConnectionStatus &status, Status *error_ptr) override;
0036
0037   size_t Write(const void *src, size_t src_len, lldb::ConnectionStatus &status,
0038                Status *error_ptr) override;
0039
0040   std::string GetURI() override;
0041
0042   bool InterruptRead() override;
0043
0044 protected:
0045   OVERLAPPED m_overlapped;
0046   HANDLE m_file;
0047   HANDLE m_event_handles[2];
0048   bool m_owns_file;
0049   LARGE_INTEGER m_file_position;
0050
0051   enum { kBytesAvailableEvent, kInterruptEvent };
0052
0053 private:
0054   void InitializeEventHandles();
0055   void IncrementFilePointer(DWORD amount);
0056
0057   std::string m_uri;
0058
0059   ConnectionGenericFile(const ConnectionGenericFile &) = delete;
0060   const ConnectionGenericFile &
0061   operator=(const ConnectionGenericFile &) = delete;
0062 };
0063 }
0064
0065 #endif