SdFat/src/FsLib/FsVolume.cpp

65 lines
2.5 KiB
C++

/**
* Copyright (c) 2011-2022 Bill Greiman
* This file is part of the SdFat library for SD memory cards.
*
* MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "FsLib.h"
FsVolume* FsVolume::m_cwv = nullptr;
//------------------------------------------------------------------------------
bool FsVolume::begin(FsBlockDevice* blockDev, bool setCwv, uint8_t part,
uint32_t volStart) {
m_fVol = nullptr;
m_xVol = new (m_volMem) ExFatVolume;
if (m_xVol && m_xVol->begin(blockDev, false, part, volStart)) {
goto done;
}
m_xVol = nullptr;
m_fVol = new (m_volMem) FatVolume;
if (m_fVol && m_fVol->begin(blockDev, false, part, volStart)) {
goto done;
}
m_fVol = nullptr;
return false;
done:
if (setCwv || !m_cwv) {
m_cwv = this;
}
return true;
}
//------------------------------------------------------------------------------
bool FsVolume::ls(print_t* pr, const char* path, uint8_t flags) {
FsBaseFile dir;
return dir.open(this, path, O_RDONLY) && dir.ls(pr, flags);
}
//------------------------------------------------------------------------------
FsFile FsVolume::open(const char* path, oflag_t oflag) {
FsFile tmpFile;
tmpFile.open(this, path, oflag);
return tmpFile;
}
#if ENABLE_ARDUINO_STRING
//------------------------------------------------------------------------------
FsFile FsVolume::open(const String& path, oflag_t oflag) {
return open(path.c_str(), oflag);
}
#endif // ENABLE_ARDUINO_STRING