OpenShot Audio Library | OpenShotAudio  0.3.1
juce_FileInputStream.h
1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2017 - ROLI Ltd.
6 
7  JUCE is an open source library subject to commercial or open-source
8  licensing.
9 
10  The code included in this file is provided under the terms of the ISC license
11  http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12  To use, copy, modify, and/or distribute this software for any purpose with or
13  without fee is hereby granted provided that the above copyright notice and
14  this permission notice appear in all copies.
15 
16  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18  DISCLAIMED.
19 
20  ==============================================================================
21 */
22 
23 namespace juce
24 {
25 
26 //==============================================================================
34 class JUCE_API FileInputStream : public InputStream
35 {
36 public:
37  //==============================================================================
44  explicit FileInputStream (const File& fileToRead);
45 
47  ~FileInputStream() override;
48 
49  //==============================================================================
51  const File& getFile() const noexcept { return file; }
52 
57  const Result& getStatus() const noexcept { return status; }
58 
62  bool failedToOpen() const noexcept { return status.failed(); }
63 
67  bool openedOk() const noexcept { return status.wasOk(); }
68 
69 
70  //==============================================================================
71  int64 getTotalLength() override;
72  int read (void*, int) override;
73  bool isExhausted() override;
74  int64 getPosition() override;
75  bool setPosition (int64) override;
76 
77 private:
78  //==============================================================================
79  const File file;
80  void* fileHandle = nullptr;
81  int64 currentPosition = 0;
82  Result status { Result::ok() };
83 
84  void openHandle();
85  size_t readInternal (void*, size_t);
86 
87  JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FileInputStream)
88 };
89 
90 } // namespace juce
static Result ok() noexcept
Definition: juce_Result.h:61
const Result & getStatus() const noexcept
const File & getFile() const noexcept
bool openedOk() const noexcept
bool failedToOpen() const noexcept