OpenShot Audio Library | OpenShotAudio: juce_FileOutputStream.cpp Source File

OpenShot Audio Library | OpenShotAudio 0.3.2

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juce_FileOutputStream.cpp
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
23namespace juce
24{
25
26int64 juce_fileSetPosition (void* handle, int64 pos);
27
28//==============================================================================
29FileOutputStream::FileOutputStream (const File& f, const size_t bufferSizeToUse)
30 : file (f),
31 bufferSize (bufferSizeToUse),
32 buffer (jmax (bufferSizeToUse, (size_t) 16))
33{
34 openHandle();
35}
36
37FileOutputStream::~FileOutputStream()
38{
39 flushBuffer();
40 closeHandle();
41}
42
43int64 FileOutputStream::getPosition()
44{
45 return currentPosition;
46}
47
48 bool FileOutputStream::setPosition (int64 newPosition)
49{
50 if (newPosition != currentPosition)
51 {
52 flushBuffer();
53 currentPosition = juce_fileSetPosition (fileHandle, newPosition);
54 }
55
56 return newPosition == currentPosition;
57}
58
59bool FileOutputStream::flushBuffer()
60{
61 bool ok = true;
62
63 if (bytesInBuffer > 0)
64 {
65 ok = (writeInternal (buffer, bytesInBuffer) == (ssize_t) bytesInBuffer);
66 bytesInBuffer = 0;
67 }
68
69 return ok;
70}
71
72 void FileOutputStream::flush()
73{
74 flushBuffer();
75 flushInternal();
76}
77
78 bool FileOutputStream::write (const void* const src, const size_t numBytes)
79{
80 jassert (src != nullptr && ((ssize_t) numBytes) >= 0);
81
82 if (! openedOk())
83 return false;
84
85 if (bytesInBuffer + numBytes < bufferSize)
86 {
87 memcpy (buffer + bytesInBuffer, src, numBytes);
88 bytesInBuffer += numBytes;
89 currentPosition += (int64) numBytes;
90 }
91 else
92 {
93 if (! flushBuffer())
94 return false;
95
96 if (numBytes < bufferSize)
97 {
98 memcpy (buffer + bytesInBuffer, src, numBytes);
99 bytesInBuffer += numBytes;
100 currentPosition += (int64) numBytes;
101 }
102 else
103 {
104 auto bytesWritten = writeInternal (src, numBytes);
105
106 if (bytesWritten < 0)
107 return false;
108
109 currentPosition += (int64) bytesWritten;
110 return bytesWritten == (ssize_t) numBytes;
111 }
112 }
113
114 return true;
115}
116
117 bool FileOutputStream::writeRepeatedByte (uint8 byte, size_t numBytes)
118{
119 jassert (((ssize_t) numBytes) >= 0);
120
121 if (bytesInBuffer + numBytes < bufferSize)
122 {
123 memset (buffer + bytesInBuffer, byte, numBytes);
124 bytesInBuffer += numBytes;
125 currentPosition += (int64) numBytes;
126 return true;
127 }
128
129 return OutputStream::writeRepeatedByte (byte, numBytes);
130}
131
132} // namespace juce
juce::FileOutputStream::writeRepeatedByte
bool writeRepeatedByte(uint8 byte, size_t numTimesToRepeat) override
Definition: juce_FileOutputStream.cpp:117
juce::FileOutputStream::write
bool write(const void *, size_t) override
Definition: juce_FileOutputStream.cpp:78
juce::FileOutputStream::~FileOutputStream
~FileOutputStream() override
Definition: juce_FileOutputStream.cpp:37
juce::FileOutputStream::setPosition
bool setPosition(int64) override
Definition: juce_FileOutputStream.cpp:48
juce::FileOutputStream::openedOk
bool openedOk() const noexcept
Definition: juce_FileOutputStream.h:91
juce::FileOutputStream::flush
void flush() override
Definition: juce_FileOutputStream.cpp:72
juce::FileOutputStream::getPosition
int64 getPosition() override
Definition: juce_FileOutputStream.cpp:43
juce::FileOutputStream::FileOutputStream
FileOutputStream(const File &fileToWriteTo, size_t bufferSizeToUse=16384)
Definition: juce_FileOutputStream.cpp:29
juce::File
Definition: juce_File.h:41
juce::OutputStream::writeRepeatedByte
virtual bool writeRepeatedByte(uint8 byte, size_t numTimesToRepeat)
Definition: juce_OutputStream.cpp:88