mirror of
https://github.com/juce-framework/JUCE.git
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124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-11 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_FileOutputStream.h"
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int64 juce_fileSetPosition (void* handle, int64 pos);
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//==============================================================================
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FileOutputStream::FileOutputStream (const File& f, const int bufferSize_)
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: file (f),
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fileHandle (nullptr),
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status (Result::ok()),
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currentPosition (0),
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bufferSize (bufferSize_),
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bytesInBuffer (0),
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buffer (jmax (bufferSize_, 16))
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{
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openHandle();
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}
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FileOutputStream::~FileOutputStream()
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{
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flushBuffer();
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flushInternal();
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closeHandle();
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}
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int64 FileOutputStream::getPosition()
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{
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return currentPosition;
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}
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bool FileOutputStream::setPosition (int64 newPosition)
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{
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if (newPosition != currentPosition)
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{
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flushBuffer();
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currentPosition = juce_fileSetPosition (fileHandle, newPosition);
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}
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return newPosition == currentPosition;
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}
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bool FileOutputStream::flushBuffer()
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{
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bool ok = true;
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if (bytesInBuffer > 0)
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{
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ok = writeInternal (buffer, bytesInBuffer);
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bytesInBuffer = 0;
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}
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return ok;
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}
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void FileOutputStream::flush()
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{
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flushBuffer();
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flushInternal();
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}
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bool FileOutputStream::write (const void* const src, const int numBytes)
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{
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if (bytesInBuffer + numBytes < bufferSize)
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{
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memcpy (buffer + bytesInBuffer, src, numBytes);
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bytesInBuffer += numBytes;
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currentPosition += numBytes;
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}
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else
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{
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if (! flushBuffer())
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return false;
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if (numBytes < bufferSize)
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{
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memcpy (buffer + bytesInBuffer, src, numBytes);
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bytesInBuffer += numBytes;
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currentPosition += numBytes;
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}
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else
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{
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const int bytesWritten = writeInternal (src, numBytes);
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if (bytesWritten < 0)
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return false;
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currentPosition += bytesWritten;
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return bytesWritten == numBytes;
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}
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}
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return true;
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}
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END_JUCE_NAMESPACE
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