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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/**
* \file WorkWithOS.cpp
* \brief Implementation of general functions for work with OS.
*/
#include <iostream>
#include <fstream>
#include <cstddef>
#include <algorithm>
#include <string>
#include <sstream>
#include <sys/statvfs.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include "Utils/WorkWithOS.h"
unsigned long int WorkWithOS::getAvailableSpace()
{
char currentAppPath[256];
memset((void*)currentAppPath, 0, 256);
getcwd(currentAppPath, 255);
struct statvfs fsInfo;
memset((void*)&fsInfo, 0, sizeof(fsInfo));
statvfs(currentAppPath, &fsInfo);
return fsInfo.f_bsize * fsInfo.f_bfree;
}
std::string WorkWithOS::getFullPath(const std::string & fileName)
{
char currentAppPath[FILENAME_MAX];
memset(currentAppPath, 0, FILENAME_MAX);
getcwd(currentAppPath, FILENAME_MAX);
char path[FILENAME_MAX];
memset(path, 0, FILENAME_MAX);
snprintf(path, FILENAME_MAX - 1, "%s/%s"
, currentAppPath, fileName.c_str());
return std::string(path);
}
std::string WorkWithOS::createDirectory(const std::string & directoryName)
{
if (!checkIfDirectoryExists(directoryName))
{
mkdir(directoryName.c_str(), S_IRWXU);
}
return directoryName;
}
bool WorkWithOS::checkIfDirectoryExists(const std::string & directoryName)
{
struct stat status;
memset(&status, 0, sizeof(status));
if (-1 == stat(directoryName.c_str(), &status)
|| !S_ISDIR(status.st_mode))
{
return false;
}
return true;
}
bool WorkWithOS::checkIfFileExists(const std::string & fileName)
{
struct stat status;
memset(&status, 0, sizeof(status));
if (-1 == stat(fileName.c_str(), &status))
{
return false;
}
return true;
}
bool WorkWithOS::createFileAndWrite(const std::string & fileName,
const std::vector<unsigned char>& fileData)
{
std::ofstream file(fileName.c_str(), std::ios_base::binary);
if (file.is_open())
{
for (int i = 0; i < fileData.size(); ++i)
{
file << fileData[i];
}
file.close();
return true;
}
return false;
}
bool WorkWithOS::deleteFile(const std::string & fileName)
{
if (checkIfFileExists(fileName))
{
return !remove(fileName.c_str());
}
return false;
}
std::vector<std::string> WorkWithOS::listFilesInDirectory(
const std::string & directoryName)
{
std::vector<std::string> listFiles;
if (!checkIfDirectoryExists(directoryName))
{
return listFiles;
}
DIR * directory = NULL;
struct dirent* dirElement = NULL;
directory = opendir(directoryName.c_str());
if ( NULL != directory )
{
while( dirElement = readdir(directory) )
{
if (0 == strcmp(dirElement->d_name, "..")
|| 0 == strcmp(dirElement->d_name, "."))
{
continue;
}
listFiles.push_back(std::string(dirElement->d_name));
}
closedir(directory);
}
return listFiles;
}
bool WorkWithOS::readFileAsBinary(const std::string& fileName, std::vector<unsigned char>& v)
{
if (!checkIfFileExists(fileName))
return false;
std::ifstream file(fileName.c_str(), std::ios_base::binary);
std::ostringstream ss;
ss << file.rdbuf();
const std::string& s = ss.str();
v.resize(s.length());
std::copy(s.begin(), s.end(), v.begin());
return true;
}
|
