1 /*
2 * Copyright (c) 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 #ifndef PREFERENCES_FILE_OPERATION_H
16 #define PREFERENCES_FILE_OPERATION_H
17
18 #include <fcntl.h>
19 #include <sys/stat.h>
20 #include <unistd.h>
21
22 #include <string>
23
24 #include "visibility.h"
25
26 #ifndef _WIN32
27 #include <dlfcn.h>
28 #endif
29
30 #if defined(WINDOWS_PLATFORM)
31
32 #include <iostream>
33 #include <windows.h>
34
35 #else
36
37 #include <stdarg.h>
38
39 #if !(defined(MAC_PLATFORM) || defined(ANDROID_PLATFORM) || defined(IOS_PLATFORM))
40
41 #include <cstdlib>
42
43 #endif
44
45 #endif
46
47 #ifndef FILE_MODE
48 #define FILE_MODE 0770
49 #endif
50
51 #ifndef FILE_EXIST
52 #define FILE_EXIST 0
53 #endif
54
55 #ifndef INT_MAX
56 #define INT_MAX 2147483647
57 #endif
58
59 namespace OHOS {
60 namespace NativePreferences {
61
DBDlOpen()62 static UNUSED_FUNCTION void *DBDlOpen()
63 {
64 #ifndef _WIN32
65 return dlopen("libarkdata_db_core.z.so", RTLD_LAZY);
66 #else
67 return nullptr;
68 #endif
69 }
70
Mkdir(const std::string & filePath)71 static UNUSED_FUNCTION int Mkdir(const std::string &filePath)
72 {
73 #if defined(WINDOWS_PLATFORM)
74 return mkdir(filePath.c_str());
75 #else
76 return mkdir(filePath.c_str(), FILE_MODE);
77 #endif
78 }
79
Access(const std::string & filePath)80 static UNUSED_FUNCTION int Access(const std::string &filePath)
81 {
82 #if defined(WINDOWS_PLATFORM)
83 return _access(filePath.c_str(), FILE_EXIST);
84 #else
85 return access(filePath.c_str(), FILE_EXIST);
86 #endif
87 }
88
Fsync(const std::string & filePath)89 static UNUSED_FUNCTION bool Fsync(const std::string &filePath)
90 {
91 #if defined(WINDOWS_PLATFORM)
92 int fd = _open(filePath.c_str(), _O_WRONLY, _S_IWRITE);
93 if (fd == -1) {
94 return false;
95 }
96 HANDLE handle = (HANDLE)_get_osfhandle(fd);
97 if (handle == INVALID_HANDLE_VALUE || !FlushFileBuffers(handle)) {
98 _close(fd);
99 return false;
100 }
101 _close(fd);
102 #else
103 int fd = open(filePath.c_str(), O_RDWR, S_IRUSR | S_IWUSR);
104 if (fd == -1) {
105 return false;
106 }
107 if (fsync(fd) == -1) {
108 close(fd);
109 return false;
110 }
111 close(fd);
112 #endif
113 return true;
114 }
115
ExtractFileName(const std::string & path)116 static UNUSED_FUNCTION std::string ExtractFileName(const std::string &path)
117 {
118 auto pos = path.rfind('/');
119 if (pos == std::string::npos) {
120 return path;
121 }
122 return path.substr(pos + 1);
123 }
124 } // namespace NativePreferences
125 } // namespace OHOS
126 #endif // PREFERENCES_FILE_OPERATION_H
127