1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Copyright (C) 2013, 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.
*/
#include "suggest/policyimpl/dictionary/utils/file_utils.h"
#include <cstdio>
#include <cstring>
#include <dirent.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
namespace latinime {
// Returns -1 on error.
/* static */ int FileUtils::getFileSize(const char *const filePath) {
const int fd = open(filePath, O_RDONLY);
if (fd == -1) {
return -1;
}
struct stat statBuf;
if (fstat(fd, &statBuf) != 0) {
close(fd);
return -1;
}
close(fd);
return static_cast<int>(statBuf.st_size);
}
// Remove a directory and all files in the directory.
/* static */ bool FileUtils::removeDirAndFiles(const char *const dirPath) {
DIR *const dir = opendir(dirPath);
if (dir == NULL) {
AKLOGE("Cannot open dir %s.", dirPath);
return true;
}
struct dirent *dirent;
while ((dirent = readdir(dir)) != NULL) {
if (dirent->d_type != DT_REG) {
continue;
}
const int filePathBufSize = getFilePathBufSize(dirPath, dirent->d_name);
char filePath[filePathBufSize];
getFilePath(dirPath, dirent->d_name, filePathBufSize, filePath);
if (remove(filePath) != 0) {
AKLOGE("Cannot remove file %s.", filePath);
return false;
}
}
if (remove(dirPath) != 0) {
AKLOGE("Cannot remove directory %s.", dirPath);
return false;
}
return true;
}
/* static */ int FileUtils::getFilePathWithSuffixBufSize(const char *const filePath,
const char *const suffix) {
return strlen(filePath) + strlen(suffix) + 1 /* terminator */;
}
/* static */ void FileUtils::getFilePathWithSuffix(const char *const filePath,
const char *const suffix, const int filePathBufSize, char *const outFilePath) {
snprintf(outFilePath, filePathBufSize, "%s%s", filePath, suffix);
}
/* static */ int FileUtils::getFilePathBufSize(const char *const dirPath,
const char *const fileName) {
return strlen(dirPath) + 1 /* '/' */ + strlen(fileName) + 1 /* terminator */;
}
/* static */ void FileUtils::getFilePath(const char *const dirPath, const char *const fileName,
const int filePathBufSize, char *const outFilePath) {
snprintf(outFilePath, filePathBufSize, "%s/%s", dirPath, fileName);
}
} // namespace latinime
|
