71f2cf116a
See https://android-git.corp.google.com/g/#/c/143865 Bug: 5449033 Change-Id: I0122812ed6ff6f5b59fe4a43ab8bff0577adde0a
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "MtpStorage"
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#include "MtpDebug.h"
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#include "MtpDatabase.h"
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#include "MtpStorage.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/statfs.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <limits.h>
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namespace android {
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MtpStorage::MtpStorage(MtpStorageID id, const char* filePath,
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const char* description, uint64_t reserveSpace,
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bool removable, uint64_t maxFileSize)
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: mStorageID(id),
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mFilePath(filePath),
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mDescription(description),
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mMaxCapacity(0),
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mMaxFileSize(maxFileSize),
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mReserveSpace(reserveSpace),
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mRemovable(removable)
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{
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ALOGV("MtpStorage id: %d path: %s\n", id, filePath);
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}
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MtpStorage::~MtpStorage() {
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}
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int MtpStorage::getType() const {
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return (mRemovable ? MTP_STORAGE_REMOVABLE_RAM : MTP_STORAGE_FIXED_RAM);
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}
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int MtpStorage::getFileSystemType() const {
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return MTP_STORAGE_FILESYSTEM_HIERARCHICAL;
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}
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int MtpStorage::getAccessCapability() const {
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return MTP_STORAGE_READ_WRITE;
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}
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uint64_t MtpStorage::getMaxCapacity() {
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if (mMaxCapacity == 0) {
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struct statfs stat;
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if (statfs(getPath(), &stat))
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return -1;
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mMaxCapacity = (uint64_t)stat.f_blocks * (uint64_t)stat.f_bsize;
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}
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return mMaxCapacity;
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}
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uint64_t MtpStorage::getFreeSpace() {
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struct statfs stat;
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if (statfs(getPath(), &stat))
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return -1;
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uint64_t freeSpace = (uint64_t)stat.f_bavail * (uint64_t)stat.f_bsize;
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return (freeSpace > mReserveSpace ? freeSpace - mReserveSpace : 0);
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}
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const char* MtpStorage::getDescription() const {
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return (const char *)mDescription;
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}
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} // namespace android
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