80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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int64 juce_fileSetPosition (void* handle, int64 pos);
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//==============================================================================
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FileInputStream::FileInputStream (const File& f) : file (f)
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{
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openHandle();
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}
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int64 FileInputStream::getTotalLength()
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{
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// You should always check that a stream opened successfully before using it!
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jassert (openedOk());
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return file.getSize();
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}
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int FileInputStream::read (void* buffer, int bytesToRead)
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{
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// You should always check that a stream opened successfully before using it!
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jassert (openedOk());
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// The buffer should never be null, and a negative size is probably a
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// sign that something is broken!
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jassert (buffer != nullptr && bytesToRead >= 0);
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auto num = readInternal (buffer, (size_t) bytesToRead);
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currentPosition += (int64) num;
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return (int) num;
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}
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bool FileInputStream::isExhausted()
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{
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return currentPosition >= getTotalLength();
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}
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int64 FileInputStream::getPosition()
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{
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return currentPosition;
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}
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bool FileInputStream::setPosition (int64 pos)
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{
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// You should always check that a stream opened successfully before using it!
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jassert (openedOk());
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if (pos != currentPosition)
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currentPosition = juce_fileSetPosition (fileHandle, pos);
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return currentPosition == pos;
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}
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} // namespace juce
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