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annotate C++/Directory.cpp @ 198:01294ed877f6

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Directory: support of Windows complete
author David Demelier <markand@malikania.fr>
date Sat, 30 Nov 2013 09:41:21 +0100
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children 08eb7b00b950
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198
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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.
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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 #endif
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26
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27 #if defined(_MSC_VER)
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28
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29 namespace {
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30
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31 std::string systemError()
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32 {
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33 LPSTR error = nullptr;
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34 std::string errmsg = "Unknown error";
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35
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36 FormatMessageA(
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37 FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
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38 NULL,
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39 GetLastError(),
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40 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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41 (LPSTR)&error, 0, NULL);
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42
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43 if (error) {
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44 errmsg = std::string(error);
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45 LocalFree(error);
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46 }
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47
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48 return errmsg;
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49 }
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50
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51 }
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52
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53 void Directory::systemLoad(const std::string &path, int flags)
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54 {
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55 std::ostringstream oss;
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56 HANDLE handle;
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57 WIN32_FIND_DATA fdata;
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58
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59 oss << path << "\\*";
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60 handle = FindFirstFile(oss.str().c_str(), &fdata);
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61
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62 if (handle == nullptr)
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63 throw std::runtime_error(systemError());
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64
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65 do {
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66 Entry entry;
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67
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68 entry.name = fdata.cFileName;
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69 if ((flags & Directory::NotDot) && entry.name == ".")
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70 continue;
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71 if ((flags & Directory::NotDotDot) && entry.name == "..")
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72 continue;
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73
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74 switch (fdata.dwFileAttributes) {
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75 case FILE_ATTRIBUTE_DIRECTORY:
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76 entry.type = Dir;
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77 break;
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78 case FILE_ATTRIBUTE_NORMAL:
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79 entry.type = File;
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80 break;
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81 case FILE_ATTRIBUTE_REPARSE_POINT:
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82 entry.type = Link;
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83 break;
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84 default:
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85 break;
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86 }
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87
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88 m_list.push_back(entry);
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89 } while (FindNextFile(handle, &fdata) != 0);
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90
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91 FindClose(handle);
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92 }
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93
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94 #else
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95
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96 // UNIX STUFF
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97
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98 #endif
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99
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100 Directory::Entry::Entry()
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101 : type(Unknown)
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102 {
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103 }
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104
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105 Directory::Directory()
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106 {
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107 }
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108
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109 Directory::Directory(const std::string &path, int flags)
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110 {
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111 systemLoad(path, flags);
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112 }
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113
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114 Directory::List::iterator Directory::begin()
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115 {
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116 return m_list.begin();
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117 }
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118
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119 Directory::List::const_iterator Directory::cbegin() const
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120 {
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121 return m_list.cbegin();
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122 }
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123
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124 Directory::List::iterator Directory::end()
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125 {
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126 return m_list.end();
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127 }
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128
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129 Directory::List::const_iterator Directory::cend() const
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130 {
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131 return m_list.cend();
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132 }