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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "MtpStorage"
#include "MtpDebug.h"
#include "MtpDatabase.h"
#include "MtpStorage.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#include <unistd.h>
#include <dirent.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <limits.h>
namespace android {
MtpStorage::MtpStorage(MtpStorageID id, const char* filePath, uint64_t reserveSpace)
: mStorageID(id),
mFilePath(filePath),
mMaxCapacity(0),
mReserveSpace(reserveSpace)
{
LOGV("MtpStorage id: %d path: %s\n", id, filePath);
}
MtpStorage::~MtpStorage() {
}
int MtpStorage::getType() const {
return MTP_STORAGE_FIXED_RAM;
}
int MtpStorage::getFileSystemType() const {
return MTP_STORAGE_FILESYSTEM_HIERARCHICAL;
}
int MtpStorage::getAccessCapability() const {
return MTP_STORAGE_READ_WRITE;
}
uint64_t MtpStorage::getMaxCapacity() {
if (mMaxCapacity == 0) {
struct statfs stat;
if (statfs(mFilePath, &stat))
return -1;
mMaxCapacity = (uint64_t)stat.f_blocks * (uint64_t)stat.f_bsize;
}
return mMaxCapacity;
}
uint64_t MtpStorage::getFreeSpace() {
struct statfs stat;
if (statfs(mFilePath, &stat))
return -1;
uint64_t freeSpace = (uint64_t)stat.f_bavail * (uint64_t)stat.f_bsize;
return (freeSpace > mReserveSpace ? freeSpace - mReserveSpace : 0);
}
const char* MtpStorage::getDescription() const {
return "Device Storage";
}
} // namespace android
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