1 /*
2  * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include "storage/storage_total_status_service.h"
17 
18 #include <cstdlib>
19 #include <cstring>
20 #include <cinttypes>
21 #include "hitrace_meter.h"
22 #include <mntent.h>
23 #include <singleton.h>
24 #include <sys/statvfs.h>
25 #include <unordered_set>
26 
27 #include "storage_service_errno.h"
28 #include "storage_service_log.h"
29 #include "utils/storage_radar.h"
30 #include "utils/storage_utils.h"
31 
32 using namespace OHOS::StorageService;
33 namespace OHOS {
34 namespace StorageManager {
StorageTotalStatusService()35 StorageTotalStatusService::StorageTotalStatusService() {}
~StorageTotalStatusService()36 StorageTotalStatusService::~StorageTotalStatusService() {}
37 
GetSystemSize(int64_t & systemSize)38 int32_t StorageTotalStatusService::GetSystemSize(int64_t &systemSize)
39 {
40     int64_t roundSize = 0;
41     int32_t ret = GetTotalSize(roundSize);
42     if (ret != E_OK) {
43         LOGE("storage total status service GetTotalSize failed, please check");
44         StorageRadar::ReportGetStorageStatus("GetSystemSize::GetTotalSize", DEFAULT_USERID, ret, "setting");
45         return ret;
46     }
47     int64_t totalSize = 0;
48     ret = GetSizeOfPath(PATH_DATA, SizeType::TOTAL, totalSize);
49     if (ret != E_OK) {
50         LOGE("storage total status service GetSizeOfPath failed, please check");
51         StorageRadar::ReportGetStorageStatus("GetSystemSize::GetSizeOfPath", DEFAULT_USERID, ret, "setting");
52         return ret;
53     }
54     systemSize = roundSize - totalSize;
55     LOGE("StorageTotalStatusService::GetSystemSize success, roundSize=%{public}lld, (/data)totalSize=%{public}lld, "
56         "systemSize=%{public}lld",
57         static_cast<long long>(roundSize), static_cast<long long>(totalSize), static_cast<long long>(systemSize));
58     return E_OK;
59 }
60 
GetTotalSize(int64_t & totalSize)61 int32_t StorageTotalStatusService::GetTotalSize(int64_t &totalSize)
62 {
63     HITRACE_METER_NAME(HITRACE_TAG_FILEMANAGEMENT, __PRETTY_FUNCTION__);
64 
65     int64_t dataSize = 0;
66     int32_t ret = GetSizeOfPath(PATH_DATA, SizeType::TOTAL, dataSize);
67     if (ret != E_OK) {
68         LOGE("GetSizeOfPath of data size failed, please check");
69         StorageRadar::ReportGetStorageStatus("GetTotalSize::GetSizeOfDataPath", DEFAULT_USERID, ret, "setting");
70         return ret;
71     }
72     int64_t rootSize = 0;
73     ret = GetSizeOfPath(PATH_ROOT, SizeType::TOTAL, rootSize);
74     if (ret != E_OK) {
75         LOGE("GetSizeOfPath of root size failed, please check");
76         StorageRadar::ReportGetStorageStatus("GetTotalSize::GetSizeOfRootPath", DEFAULT_USERID, ret, "setting");
77         return ret;
78     }
79     totalSize = GetRoundSize(dataSize + rootSize);
80     LOGE("StorageTotalStatusService::GetTotalSize success, roundSize=%{public}lld, (/data)totalDataSize=%{public}lld,"
81         " (/)totalRootSize=%{public}lld",
82         static_cast<long long>(totalSize), static_cast<long long>(dataSize), static_cast<long long>(rootSize));
83     return E_OK;
84 }
85 
GetFreeSize(int64_t & freeSize)86 int32_t StorageTotalStatusService::GetFreeSize(int64_t &freeSize)
87 {
88     int32_t ret = GetSizeOfPath(PATH_DATA, SizeType::FREE, freeSize);
89     if (ret != E_OK) {
90         LOGE("GetFreeSize failed, please check");
91         StorageRadar::ReportGetStorageStatus("GetFreeSize", DEFAULT_USERID, ret, "setting");
92     }
93     LOGE("StorageTotalStatusService::GetFreeSize success, (/data)freeSize=%{public}lld",
94          static_cast<long long>(freeSize));
95     return ret;
96 }
97 
GetSizeOfPath(const char * path,int32_t type,int64_t & size)98 int32_t StorageTotalStatusService::GetSizeOfPath(const char *path, int32_t type, int64_t &size)
99 {
100     struct statvfs diskInfo;
101     int ret = statvfs(path, &diskInfo);
102     if (ret != E_OK) {
103         return E_ERR;
104     }
105     std::string typeStr = "";
106     if (type == SizeType::TOTAL) {
107         size = (int64_t)diskInfo.f_bsize * (int64_t)diskInfo.f_blocks;
108         typeStr = "total space";
109     } else if (type == SizeType::FREE) {
110         size = (int64_t)diskInfo.f_bsize * (int64_t)diskInfo.f_bfree;
111         typeStr = "free space";
112     } else {
113         size = (int64_t)diskInfo.f_bsize * ((int64_t)diskInfo.f_blocks - (int64_t)diskInfo.f_bfree);
114         typeStr = "used space";
115     }
116     LOGI("StorageStatusService::GetSizeOfPath path is %{public}s, type is %{public}s, size is %{public}lld.",
117          path, typeStr.c_str(), static_cast<long long>(size));
118     return E_OK;
119 }
120 } // StorageManager
121 } // OHOS
122