mirror of
https://github.com/XRPLF/rippled.git
synced 2025-11-20 19:15:54 +00:00
558b914c64
* Rename unity files * Move some modules to new subdirectories * Remove obsolete Visual Studio project files * Remove obsolete coding style and TODO list
96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
This file is part of Beast: https://github.com/vinniefalco/Beast
|
|
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
|
|
|
|
Portions of this file are from JUCE.
|
|
Copyright (c) 2013 - Raw Material Software Ltd.
|
|
Please visit http://www.juce.com
|
|
|
|
Permission to use, copy, modify, and/or distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
//==============================================================================
|
|
|
|
namespace beast
|
|
{
|
|
|
|
std::int64_t beast_fileSetPosition (void* handle, std::int64_t pos);
|
|
|
|
//==============================================================================
|
|
FileInputStream::FileInputStream (const File& f)
|
|
: file (f),
|
|
fileHandle (nullptr),
|
|
currentPosition (0),
|
|
status (Result::ok()),
|
|
needToSeek (true)
|
|
{
|
|
openHandle();
|
|
}
|
|
|
|
FileInputStream::~FileInputStream()
|
|
{
|
|
closeHandle();
|
|
}
|
|
|
|
//==============================================================================
|
|
std::int64_t FileInputStream::getTotalLength()
|
|
{
|
|
return file.getSize();
|
|
}
|
|
|
|
int FileInputStream::read (void* buffer, int bytesToRead)
|
|
{
|
|
bassert (openedOk());
|
|
bassert (buffer != nullptr && bytesToRead >= 0);
|
|
|
|
if (needToSeek)
|
|
{
|
|
if (beast_fileSetPosition (fileHandle, currentPosition) < 0)
|
|
return 0;
|
|
|
|
needToSeek = false;
|
|
}
|
|
|
|
const size_t num = readInternal (buffer, (size_t) bytesToRead);
|
|
currentPosition += num;
|
|
|
|
return (int) num;
|
|
}
|
|
|
|
bool FileInputStream::isExhausted()
|
|
{
|
|
return currentPosition >= getTotalLength();
|
|
}
|
|
|
|
std::int64_t FileInputStream::getPosition()
|
|
{
|
|
return currentPosition;
|
|
}
|
|
|
|
bool FileInputStream::setPosition (std::int64_t pos)
|
|
{
|
|
bassert (openedOk());
|
|
|
|
if (pos != currentPosition)
|
|
{
|
|
pos = blimit ((std::int64_t) 0, getTotalLength(), pos);
|
|
|
|
needToSeek |= (currentPosition != pos);
|
|
currentPosition = pos;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} // beast
|