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d580e7c694
* Use nullptr (C++11) instead of NULL. * Put each file into its own namespace declaration. * Remove "using namespace" directives and add scope qualifiers. * Control when beast's implementation of std::equal (C++14) is used. * Tidy up some const declarations. Conflicts: src/ripple_app/shamap/SHAMapSync.cpp src/ripple_app/tx/TransactionEngine.cpp
96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Portions of this file are from JUCE.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Please visit http://www.juce.com
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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namespace beast
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{
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int64 beast_fileSetPosition (void* handle, int64 pos);
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//==============================================================================
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FileInputStream::FileInputStream (const File& f)
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: file (f),
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fileHandle (nullptr),
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currentPosition (0),
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status (Result::ok()),
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needToSeek (true)
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{
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openHandle();
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}
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FileInputStream::~FileInputStream()
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{
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closeHandle();
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}
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//==============================================================================
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int64 FileInputStream::getTotalLength()
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{
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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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bassert (openedOk());
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bassert (buffer != nullptr && bytesToRead >= 0);
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if (needToSeek)
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{
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if (beast_fileSetPosition (fileHandle, currentPosition) < 0)
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return 0;
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needToSeek = false;
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}
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const size_t num = readInternal (buffer, (size_t) bytesToRead);
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currentPosition += 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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bassert (openedOk());
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if (pos != currentPosition)
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{
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pos = blimit ((int64) 0, getTotalLength(), pos);
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needToSeek |= (currentPosition != pos);
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currentPosition = pos;
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}
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return true;
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}
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} // namespace beast
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