IOObject.h revision 355940
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 liblldb_Host_Common_IOObject_h_ 10#define liblldb_Host_Common_IOObject_h_ 11 12#include <stdarg.h> 13#include <stdio.h> 14#include <sys/types.h> 15 16#include "lldb/lldb-private.h" 17 18namespace lldb_private { 19 20class IOObject { 21public: 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 32 IOObject(FDType type, bool should_close) 33 : m_fd_type(type), m_should_close_fd(should_close) {} 34 virtual ~IOObject(); 35 36 virtual Status Read(void *buf, size_t &num_bytes) = 0; 37 virtual Status Write(const void *buf, size_t &num_bytes) = 0; 38 virtual bool IsValid() const = 0; 39 virtual Status Close() = 0; 40 41 FDType GetFdType() const { return m_fd_type; } 42 43 virtual WaitableHandle GetWaitableHandle() = 0; 44 45protected: 46 FDType m_fd_type; 47 bool m_should_close_fd; // True if this class should close the file descriptor 48 // when it goes away. 49 50private: 51 DISALLOW_COPY_AND_ASSIGN(IOObject); 52}; 53} // namespace lldb_private 54 55#endif 56