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annotate C++/Directory.cpp @ 232:420b1710355f

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Luae: disable optionals, it is not currently ready
author David Demelier <markand@malikania.fr>
date Sun, 22 Jun 2014 16:23:15 +0200
parents 7086e93bc4ea
children d157f4747676
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * Directory.cpp -- open and read directories
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3 *
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4 * Copyright (c) 2013 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
199
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17 */
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18
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19 #include <sstream>
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20
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21 #include "Directory.h"
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22
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23 #if defined(_MSC_VER)
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24 # include <Windows.h>
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25 #else
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26 # include <cstring>
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27 # include <cerrno>
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28
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29 # include <sys/types.h>
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30 # include <dirent.h>
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31 #endif
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32
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33 #if defined(_MSC_VER)
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34
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35 namespace {
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36
198
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37 std::string systemError()
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38 {
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39 LPSTR error = nullptr;
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40 std::string errmsg = "Unknown error";
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41
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42 FormatMessageA(
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43 FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
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44 NULL,
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45 GetLastError(),
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46 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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47 (LPSTR)&error, 0, NULL);
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48
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49 if (error) {
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50 errmsg = std::string(error);
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51 LocalFree(error);
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52 }
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53
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54 return errmsg;
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55 }
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56
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57 }
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58
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59 void Directory::systemLoad(const std::string &path, int flags)
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60 {
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61 std::ostringstream oss;
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62 HANDLE handle;
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63 WIN32_FIND_DATA fdata;
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64
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65 oss << path << "\\*";
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66 handle = FindFirstFile(oss.str().c_str(), &fdata);
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67
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68 if (handle == nullptr)
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69 throw std::runtime_error(systemError());
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70
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71 do {
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72 Entry entry;
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73
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74 entry.name = fdata.cFileName;
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75 if ((flags & Directory::NotDot) && entry.name == ".")
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76 continue;
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77 if ((flags & Directory::NotDotDot) && entry.name == "..")
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78 continue;
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79
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80 switch (fdata.dwFileAttributes) {
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81 case FILE_ATTRIBUTE_DIRECTORY:
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82 entry.type = Dir;
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83 break;
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84 case FILE_ATTRIBUTE_NORMAL:
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85 entry.type = File;
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86 break;
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87 case FILE_ATTRIBUTE_REPARSE_POINT:
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88 entry.type = Link;
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89 break;
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90 default:
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91 break;
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92 }
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93
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94 m_list.push_back(entry);
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95 } while (FindNextFile(handle, &fdata) != 0);
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96
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97 FindClose(handle);
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98 }
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99
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100 #else
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101
199
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102 void Directory::systemLoad(const std::string &path, int flags)
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103 {
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104 DIR *dp;
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105 struct dirent *ent;
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106
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107 if ((dp = opendir(path.c_str())) == nullptr)
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108 throw std::runtime_error(strerror(errno));
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109
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110 while ((ent = readdir(dp)) != nullptr) {
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111 Entry entry;
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112
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113 entry.name = ent->d_name;
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114 if ((flags & Directory::NotDot) && entry.name == ".")
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115 continue;
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116 if ((flags & Directory::NotDotDot) && entry.name == "..")
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117 continue;
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118
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119 switch (ent->d_type) {
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120 case DT_DIR:
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121 entry.type = Dir;
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122 break;
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123 case DT_REG:
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124 entry.type = File;
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125 break;
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126 case DT_LNK:
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127 entry.type = Link;
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128 break;
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129 default:
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130 break;
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131 }
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132
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133 m_list.push_back(entry);
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134 }
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135
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136 closedir(dp);
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137 }
198
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138
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139 #endif
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140
199
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141 Directory::Entry::Entry()
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142 : type(Unknown)
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143 {
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144 }
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145
204
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146 bool operator==(const Directory::Entry &e1, const Directory::Entry &e2)
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147 {
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148 return e1.name == e2.name && e1.type == e2.type;
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149 }
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150
199
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151 Directory::Directory()
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152 {
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153 }
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154
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155 Directory::Directory(const std::string &path, int flags)
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156 {
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157 systemLoad(path, flags);
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158 }
199
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159
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160 Directory::List::iterator Directory::begin()
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161 {
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162 return m_list.begin();
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163 }
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164
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165 Directory::List::const_iterator Directory::cbegin() const
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166 {
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167 return m_list.cbegin();
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168 }
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169
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170 Directory::List::iterator Directory::end()
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171 {
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172 return m_list.end();
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173 }
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174
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175 Directory::List::const_iterator Directory::cend() const
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176 {
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177 return m_list.cend();
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178 }
204
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179
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180 int Directory::count() const
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181 {
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182 return m_list.size();
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183 }
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184
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185 bool operator==(const Directory &d1, const Directory &d2)
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186 {
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187 return d1.m_list == d2.m_list;
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188 }