Mercurial > hg > orthanc
annotate Core/SystemToolbox.cpp @ 2187:ad72fbd700b7
move of third party downloads to the main server
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 29 Nov 2016 12:28:09 +0100 |
parents | 1c42860097fc |
children | 4e8e0ad2001c |
rev | line source |
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1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * |
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6 * This program is free software: you can redistribute it and/or |
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7 * modify it under the terms of the GNU General Public License as |
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8 * published by the Free Software Foundation, either version 3 of the |
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9 * License, or (at your option) any later version. |
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10 * |
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11 * In addition, as a special exception, the copyright holders of this |
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12 * program give permission to link the code of its release with the |
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it |
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14 * that use the same license as the "OpenSSL" library), and distribute |
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15 * the linked executables. You must obey the GNU General Public License |
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16 * in all respects for all of the code used other than "OpenSSL". If you |
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17 * modify file(s) with this exception, you may extend this exception to |
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18 * your version of the file(s), but you are not obligated to do so. If |
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19 * you do not wish to do so, delete this exception statement from your |
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20 * version. If you delete this exception statement from all source files |
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21 * in the program, then also delete it here. |
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22 * |
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23 * This program is distributed in the hope that it will be useful, but |
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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26 * General Public License for more details. |
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27 * |
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28 * You should have received a copy of the GNU General Public License |
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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30 **/ |
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31 |
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32 |
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33 #include "PrecompiledHeaders.h" |
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34 #include "SystemToolbox.h" |
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35 |
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36 |
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37 #if BOOST_HAS_DATE_TIME == 1 |
2173 | 38 # include <boost/date_time/posix_time/posix_time.hpp> |
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39 #endif |
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40 |
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41 |
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42 #if defined(_WIN32) |
2173 | 43 # include <windows.h> |
44 # include <process.h> // For "_spawnvp()" and "_getpid()" | |
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45 #else |
2173 | 46 # include <unistd.h> // For "execvp()" |
47 # include <sys/wait.h> // For "waitpid()" | |
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48 #endif |
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49 |
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51 #if defined(__APPLE__) && defined(__MACH__) |
2173 | 52 # include <mach-o/dyld.h> /* _NSGetExecutablePath */ |
53 # include <limits.h> /* PATH_MAX */ | |
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54 #endif |
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55 |
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57 #if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
2173 | 58 # include <limits.h> /* PATH_MAX */ |
59 # include <signal.h> | |
60 # include <unistd.h> | |
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61 #endif |
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62 |
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63 |
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64 // Inclusions for UUID |
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65 // http://stackoverflow.com/a/1626302 |
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66 |
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67 extern "C" |
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68 { |
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69 #ifdef WIN32 |
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70 # include <rpc.h> |
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71 #else |
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72 # include <uuid/uuid.h> |
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73 #endif |
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74 } |
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75 |
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76 |
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77 #include "Logging.h" |
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78 #include "OrthancException.h" |
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79 #include "Toolbox.h" |
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80 |
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81 #include <boost/filesystem.hpp> |
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82 #include <boost/filesystem/fstream.hpp> |
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83 |
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84 |
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85 namespace Orthanc |
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86 { |
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87 static bool finish_; |
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88 static ServerBarrierEvent barrierEvent_; |
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89 |
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90 #if defined(_WIN32) |
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91 static BOOL WINAPI ConsoleControlHandler(DWORD dwCtrlType) |
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92 { |
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93 // http://msdn.microsoft.com/en-us/library/ms683242(v=vs.85).aspx |
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94 finish_ = true; |
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95 return true; |
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96 } |
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97 #else |
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98 static void SignalHandler(int signal) |
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99 { |
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100 if (signal == SIGHUP) |
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101 { |
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102 barrierEvent_ = ServerBarrierEvent_Reload; |
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103 } |
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104 |
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105 finish_ = true; |
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106 } |
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107 #endif |
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108 |
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109 |
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110 static ServerBarrierEvent ServerBarrierInternal(const bool* stopFlag) |
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111 { |
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112 #if defined(_WIN32) |
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113 SetConsoleCtrlHandler(ConsoleControlHandler, true); |
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114 #else |
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115 signal(SIGINT, SignalHandler); |
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116 signal(SIGQUIT, SignalHandler); |
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117 signal(SIGTERM, SignalHandler); |
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118 signal(SIGHUP, SignalHandler); |
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119 #endif |
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120 |
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121 // Active loop that awakens every 100ms |
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122 finish_ = false; |
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123 barrierEvent_ = ServerBarrierEvent_Stop; |
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124 while (!(*stopFlag || finish_)) |
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125 { |
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126 Toolbox::USleep(100 * 1000); |
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127 } |
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128 |
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129 #if defined(_WIN32) |
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130 SetConsoleCtrlHandler(ConsoleControlHandler, false); |
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131 #else |
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132 signal(SIGINT, NULL); |
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133 signal(SIGQUIT, NULL); |
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134 signal(SIGTERM, NULL); |
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135 signal(SIGHUP, NULL); |
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136 #endif |
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137 |
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138 return barrierEvent_; |
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139 } |
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140 |
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141 |
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142 ServerBarrierEvent SystemToolbox::ServerBarrier(const bool& stopFlag) |
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143 { |
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144 return ServerBarrierInternal(&stopFlag); |
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145 } |
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146 |
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147 |
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148 ServerBarrierEvent SystemToolbox::ServerBarrier() |
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149 { |
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150 const bool stopFlag = false; |
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151 return ServerBarrierInternal(&stopFlag); |
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152 } |
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153 |
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154 |
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155 static std::streamsize GetStreamSize(std::istream& f) |
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156 { |
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157 // http://www.cplusplus.com/reference/iostream/istream/tellg/ |
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158 f.seekg(0, std::ios::end); |
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159 std::streamsize size = f.tellg(); |
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160 f.seekg(0, std::ios::beg); |
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161 |
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162 return size; |
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163 } |
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164 |
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165 |
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166 void SystemToolbox::ReadFile(std::string& content, |
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167 const std::string& path) |
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168 { |
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169 if (!IsRegularFile(path)) |
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170 { |
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171 LOG(ERROR) << std::string("The path does not point to a regular file: ") << path; |
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172 throw OrthancException(ErrorCode_RegularFileExpected); |
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173 } |
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174 |
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175 boost::filesystem::ifstream f; |
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176 f.open(path, std::ifstream::in | std::ifstream::binary); |
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177 if (!f.good()) |
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178 { |
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179 throw OrthancException(ErrorCode_InexistentFile); |
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180 } |
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181 |
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182 std::streamsize size = GetStreamSize(f); |
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183 content.resize(size); |
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184 if (size != 0) |
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185 { |
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186 f.read(reinterpret_cast<char*>(&content[0]), size); |
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187 } |
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188 |
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189 f.close(); |
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190 } |
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191 |
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192 |
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193 bool SystemToolbox::ReadHeader(std::string& header, |
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194 const std::string& path, |
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195 size_t headerSize) |
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196 { |
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197 if (!IsRegularFile(path)) |
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198 { |
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199 LOG(ERROR) << std::string("The path does not point to a regular file: ") << path; |
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200 throw OrthancException(ErrorCode_RegularFileExpected); |
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201 } |
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202 |
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203 boost::filesystem::ifstream f; |
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204 f.open(path, std::ifstream::in | std::ifstream::binary); |
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205 if (!f.good()) |
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206 { |
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207 throw OrthancException(ErrorCode_InexistentFile); |
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208 } |
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209 |
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210 bool full = true; |
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211 |
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212 { |
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213 std::streamsize size = GetStreamSize(f); |
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214 if (size <= 0) |
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215 { |
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216 headerSize = 0; |
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217 full = false; |
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218 } |
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219 else if (static_cast<size_t>(size) < headerSize) |
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220 { |
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221 headerSize = size; // Truncate to the size of the file |
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222 full = false; |
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223 } |
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224 } |
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225 |
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226 header.resize(headerSize); |
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227 if (headerSize != 0) |
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228 { |
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229 f.read(reinterpret_cast<char*>(&header[0]), headerSize); |
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230 } |
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231 |
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232 f.close(); |
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233 |
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234 return full; |
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235 } |
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236 |
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237 |
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238 void SystemToolbox::WriteFile(const void* content, |
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239 size_t size, |
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240 const std::string& path) |
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241 { |
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242 boost::filesystem::ofstream f; |
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243 f.open(path, std::ofstream::out | std::ofstream::binary); |
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244 if (!f.good()) |
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245 { |
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246 throw OrthancException(ErrorCode_CannotWriteFile); |
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247 } |
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248 |
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249 if (size != 0) |
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250 { |
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251 f.write(reinterpret_cast<const char*>(content), size); |
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252 |
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253 if (!f.good()) |
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254 { |
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255 f.close(); |
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256 throw OrthancException(ErrorCode_FileStorageCannotWrite); |
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257 } |
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258 } |
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259 |
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260 f.close(); |
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261 } |
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262 |
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263 |
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264 void SystemToolbox::WriteFile(const std::string& content, |
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265 const std::string& path) |
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266 { |
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267 WriteFile(content.size() > 0 ? content.c_str() : NULL, |
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268 content.size(), path); |
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269 } |
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270 |
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271 |
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272 void SystemToolbox::RemoveFile(const std::string& path) |
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273 { |
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274 if (boost::filesystem::exists(path)) |
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275 { |
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276 if (IsRegularFile(path)) |
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277 { |
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278 boost::filesystem::remove(path); |
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279 } |
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280 else |
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281 { |
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282 throw OrthancException(ErrorCode_RegularFileExpected); |
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283 } |
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284 } |
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285 } |
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286 |
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287 |
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288 uint64_t SystemToolbox::GetFileSize(const std::string& path) |
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289 { |
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290 try |
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291 { |
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292 return static_cast<uint64_t>(boost::filesystem::file_size(path)); |
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293 } |
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294 catch (boost::filesystem::filesystem_error&) |
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295 { |
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296 throw OrthancException(ErrorCode_InexistentFile); |
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297 } |
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298 } |
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299 |
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300 |
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301 void SystemToolbox::MakeDirectory(const std::string& path) |
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302 { |
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303 if (boost::filesystem::exists(path)) |
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304 { |
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305 if (!boost::filesystem::is_directory(path)) |
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306 { |
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307 throw OrthancException(ErrorCode_DirectoryOverFile); |
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308 } |
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309 } |
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310 else |
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311 { |
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312 if (!boost::filesystem::create_directories(path)) |
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313 { |
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314 throw OrthancException(ErrorCode_MakeDirectory); |
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315 } |
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316 } |
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317 } |
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318 |
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319 |
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320 bool SystemToolbox::IsExistingFile(const std::string& path) |
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321 { |
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322 return boost::filesystem::exists(path); |
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323 } |
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324 |
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325 |
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326 #if defined(_WIN32) |
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327 static std::string GetPathToExecutableInternal() |
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328 { |
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329 // Yes, this is ugly, but there is no simple way to get the |
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330 // required buffer size, so we use a big constant |
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331 std::vector<char> buffer(32768); |
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332 /*int bytes =*/ GetModuleFileNameA(NULL, &buffer[0], static_cast<DWORD>(buffer.size() - 1)); |
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333 return std::string(&buffer[0]); |
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334 } |
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335 |
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336 #elif defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__FreeBSD__) |
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337 static std::string GetPathToExecutableInternal() |
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338 { |
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339 std::vector<char> buffer(PATH_MAX + 1); |
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340 ssize_t bytes = readlink("/proc/self/exe", &buffer[0], buffer.size() - 1); |
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341 if (bytes == 0) |
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342 { |
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343 throw OrthancException(ErrorCode_PathToExecutable); |
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344 } |
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345 |
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346 return std::string(&buffer[0]); |
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347 } |
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348 |
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349 #elif defined(__APPLE__) && defined(__MACH__) |
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350 static std::string GetPathToExecutableInternal() |
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351 { |
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352 char pathbuf[PATH_MAX + 1]; |
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353 unsigned int bufsize = static_cast<int>(sizeof(pathbuf)); |
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354 |
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355 _NSGetExecutablePath( pathbuf, &bufsize); |
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356 |
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357 return std::string(pathbuf); |
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358 } |
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359 |
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360 #else |
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361 #error Support your platform here |
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362 #endif |
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363 |
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364 |
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365 std::string SystemToolbox::GetPathToExecutable() |
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366 { |
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367 boost::filesystem::path p(GetPathToExecutableInternal()); |
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368 return boost::filesystem::absolute(p).string(); |
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369 } |
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370 |
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371 |
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372 std::string SystemToolbox::GetDirectoryOfExecutable() |
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373 { |
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374 boost::filesystem::path p(GetPathToExecutableInternal()); |
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375 return boost::filesystem::absolute(p.parent_path()).string(); |
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376 } |
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377 |
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378 |
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379 void SystemToolbox::ExecuteSystemCommand(const std::string& command, |
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380 const std::vector<std::string>& arguments) |
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381 { |
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382 // Convert the arguments as a C array |
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383 std::vector<char*> args(arguments.size() + 2); |
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384 |
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385 args.front() = const_cast<char*>(command.c_str()); |
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386 |
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387 for (size_t i = 0; i < arguments.size(); i++) |
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388 { |
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389 args[i + 1] = const_cast<char*>(arguments[i].c_str()); |
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390 } |
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391 |
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392 args.back() = NULL; |
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393 |
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394 int status; |
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395 |
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396 #if defined(_WIN32) |
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397 // http://msdn.microsoft.com/en-us/library/275khfab.aspx |
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398 status = static_cast<int>(_spawnvp(_P_OVERLAY, command.c_str(), &args[0])); |
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399 |
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400 #else |
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401 int pid = fork(); |
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402 |
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403 if (pid == -1) |
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404 { |
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405 // Error in fork() |
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406 #if ORTHANC_ENABLE_LOGGING == 1 |
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407 LOG(ERROR) << "Cannot fork a child process"; |
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408 #endif |
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409 |
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410 throw OrthancException(ErrorCode_SystemCommand); |
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411 } |
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412 else if (pid == 0) |
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413 { |
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414 // Execute the system command in the child process |
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415 execvp(command.c_str(), &args[0]); |
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416 |
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417 // We should never get here |
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418 _exit(1); |
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419 } |
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420 else |
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421 { |
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422 // Wait for the system command to exit |
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423 waitpid(pid, &status, 0); |
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424 } |
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425 #endif |
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426 |
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427 if (status != 0) |
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428 { |
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429 #if ORTHANC_ENABLE_LOGGING == 1 |
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430 LOG(ERROR) << "System command failed with status code " << status; |
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431 #endif |
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432 |
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433 throw OrthancException(ErrorCode_SystemCommand); |
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434 } |
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435 } |
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436 |
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437 |
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438 int SystemToolbox::GetProcessId() |
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439 { |
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440 #if defined(_WIN32) |
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441 return static_cast<int>(_getpid()); |
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442 #else |
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443 return static_cast<int>(getpid()); |
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444 #endif |
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445 } |
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446 |
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447 |
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448 bool SystemToolbox::IsRegularFile(const std::string& path) |
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449 { |
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450 namespace fs = boost::filesystem; |
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451 |
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452 try |
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453 { |
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454 if (fs::exists(path)) |
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455 { |
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456 fs::file_status status = fs::status(path); |
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457 return (status.type() == boost::filesystem::regular_file || |
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458 status.type() == boost::filesystem::reparse_file); // Fix BitBucket issue #11 |
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459 } |
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460 } |
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461 catch (fs::filesystem_error&) |
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462 { |
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463 } |
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464 |
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465 return false; |
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466 } |
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467 |
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468 |
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469 FILE* SystemToolbox::OpenFile(const std::string& path, |
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470 FileMode mode) |
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471 { |
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472 #if defined(_WIN32) |
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473 // TODO Deal with special characters by converting to the current locale |
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474 #endif |
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475 |
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476 const char* m; |
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477 switch (mode) |
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478 { |
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479 case FileMode_ReadBinary: |
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480 m = "rb"; |
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481 break; |
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482 |
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483 case FileMode_WriteBinary: |
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484 m = "wb"; |
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485 break; |
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486 |
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487 default: |
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488 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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489 } |
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490 |
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491 return fopen(path.c_str(), m); |
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492 } |
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493 |
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494 |
2172
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495 std::string SystemToolbox::GenerateUuid() |
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496 { |
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497 #ifdef WIN32 |
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498 UUID uuid; |
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499 UuidCreate ( &uuid ); |
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500 |
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501 unsigned char * str; |
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502 UuidToStringA ( &uuid, &str ); |
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503 |
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504 std::string s( ( char* ) str ); |
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505 |
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506 RpcStringFreeA ( &str ); |
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507 #else |
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508 uuid_t uuid; |
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509 uuid_generate_random ( uuid ); |
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510 char s[37]; |
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511 uuid_unparse ( uuid, s ); |
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512 #endif |
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513 return s; |
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514 } |
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515 |
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516 |
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517 #if BOOST_HAS_DATE_TIME == 1 |
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518 std::string SystemToolbox::GetNowIsoString() |
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519 { |
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520 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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521 return boost::posix_time::to_iso_string(now); |
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522 } |
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523 |
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524 void SystemToolbox::GetNowDicom(std::string& date, |
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525 std::string& time) |
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526 { |
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527 boost::posix_time::ptime now = boost::posix_time::second_clock::local_time(); |
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528 tm tm = boost::posix_time::to_tm(now); |
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529 |
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530 char s[32]; |
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531 sprintf(s, "%04d%02d%02d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday); |
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532 date.assign(s); |
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533 |
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534 // TODO milliseconds |
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535 sprintf(s, "%02d%02d%02d.%06d", tm.tm_hour, tm.tm_min, tm.tm_sec, 0); |
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536 time.assign(s); |
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537 } |
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538 #endif |
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539 } |