//===-- IOObject.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 LLDB_UTILITY_IOOBJECT_H

#define LLDB_UTILITY_IOOBJECT_H

#include <cstdarg>

#include <cstdio>

#include <sys/types.h>

#include "lldb/lldb-private.h"

namespace lldb_private {

class IOObject {

public:

  enum FDType {

    eFDTypeFile,   // Other FD requiring read/write

    eFDTypeSocket, // Socket requiring send/recv

  };

  // TODO: On Windows this should be a HANDLE, and wait should use

  // WaitForMultipleObjects

  typedef int WaitableHandle;

  static const WaitableHandle kInvalidHandleValue;

  IOObject(FDType type) : m_fd_type(type) {}

  virtual ~IOObject();

  virtual Status Read(void *buf, size_t &num_bytes) = 0;

  virtual Status Write(const void *buf, size_t &num_bytes) = 0;

  virtual bool IsValid() const = 0;

  virtual Status Close() = 0;

  FDType GetFdType() const { return m_fd_type; }

  virtual WaitableHandle GetWaitableHandle() = 0;

protected:

  FDType m_fd_type;

private:

  IOObject(const IOObject &) = delete;

  const IOObject &operator=(const IOObject &) = delete;

};

} // namespace lldb_private

#endif