1 //===-- IOObject.h ----------------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLDB_UTILITY_IOOBJECT_H 10 #define LLDB_UTILITY_IOOBJECT_H 11 12 #include <cstdarg> 13 #include <cstdio> 14 #include <sys/types.h> 15 16 #include "lldb/lldb-private.h" 17 18 namespace lldb_private { 19 20 class IOObject { 21 public: 22 enum FDType { 23 eFDTypeFile, // Other FD requiring read/write 24 eFDTypeSocket, // Socket requiring send/recv 25 }; 26 27 // TODO: On Windows this should be a HANDLE, and wait should use 28 // WaitForMultipleObjects 29 typedef int WaitableHandle; 30 static const WaitableHandle kInvalidHandleValue; 31 IOObject(FDType type)32 IOObject(FDType type) : m_fd_type(type) {} 33 virtual ~IOObject(); 34 35 virtual Status Read(void *buf, size_t &num_bytes) = 0; 36 virtual Status Write(const void *buf, size_t &num_bytes) = 0; 37 virtual bool IsValid() const = 0; 38 virtual Status Close() = 0; 39 GetFdType()40 FDType GetFdType() const { return m_fd_type; } 41 42 virtual WaitableHandle GetWaitableHandle() = 0; 43 44 protected: 45 FDType m_fd_type; 46 47 private: 48 IOObject(const IOObject &) = delete; 49 const IOObject &operator=(const IOObject &) = delete; 50 }; 51 } // namespace lldb_private 52 53 #endif 54