Mercurial > hg > orthanc

annotate OrthancServer/Plugins/Samples/StorageArea/Plugin.cpp @ 4749:1a061bc2d6ca

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 08 Jul 2021 14:57:21 +0200
parents 5b929e6b3c36
children 7053502fbf97
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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 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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21
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22 #include <orthanc/OrthancCPlugin.h>
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23
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24 #include <string.h>
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25 #include <stdio.h>
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26 #include <string>
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27
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28
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29 static OrthancPluginContext* context = NULL;
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30
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31
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32 static std::string GetPath(const char* uuid)
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33 {
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34 return "plugin_" + std::string(uuid);
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35 }
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37
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38 static bool ReadFile(std::string& content,
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39 const std::string& path)
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40 {
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41 FILE* fp = fopen(path.c_str(), "rb");
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42 if (!fp)
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43 {
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44 return false;
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45 }
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46
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47 if (fseek(fp, 0, SEEK_END) < 0)
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48 {
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49 fclose(fp);
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50 return false;
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51 }
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52
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53 long size = ftell(fp);
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54
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55 if (fseek(fp, 0, SEEK_SET) < 0)
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56 {
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57 fclose(fp);
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58 return false;
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59 }
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60 else
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61 {
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62 content.resize(size);
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63
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64 if (size != 0)
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65 {
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66 bool success = (fread(&content[0], size, 1, fp) == 1);
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67 fclose(fp);
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68 return success;
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69 }
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70 else
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71 {
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72 fclose(fp);
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73 return true;
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74 }
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75 }
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76 }
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78
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79 static OrthancPluginErrorCode StorageCreate(const char* uuid,
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80 const void* content,
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81 int64_t size,
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82 OrthancPluginContentType type)
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83 {
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84 std::string path = GetPath(uuid);
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85
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86 FILE* fp = fopen(path.c_str(), "wb");
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87 if (!fp)
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88 {
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89 return OrthancPluginErrorCode_StorageAreaPlugin;
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90 }
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91
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92 bool ok = fwrite(content, size, 1, fp) == 1;
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93 fclose(fp);
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94
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95 return ok ? OrthancPluginErrorCode_Success : OrthancPluginErrorCode_StorageAreaPlugin;
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96 }
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97
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98
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99 #if USE_LEGACY_API == 1
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100 static OrthancPluginErrorCode StorageRead(void** content,
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101 int64_t* size,
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102 const char* uuid,
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103 OrthancPluginContentType type)
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104 {
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105 const std::string path = GetPath(uuid);
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106
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107 std::string s;
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108 if (ReadFile(s, path))
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109 {
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110 *size = s.size();
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111
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112 if (s.size() == 0)
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113 {
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114 *content = NULL;
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115 }
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116 else
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117 {
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118 *content = malloc(s.size());
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119 if (*content == NULL)
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120 {
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121 return OrthancPluginErrorCode_StorageAreaPlugin;
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122 }
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123
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124 if (!s.empty())
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125 {
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126 memcpy(*content, s.c_str(), s.size());
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127 }
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128 }
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129
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130 return OrthancPluginErrorCode_Success;
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131 }
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132 else
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133 {
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134 return OrthancPluginErrorCode_StorageAreaPlugin;
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135 }
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136 }
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137
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138 #else
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139
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140 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target,
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141 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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142 OrthancPluginContentType type)
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Sebastien Jodogne <s.jodogne@gmail.com>
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143 {
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144 const std::string path = GetPath(uuid);
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145
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146 std::string s;
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147 if (ReadFile(s, path))
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148 {
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149 if (OrthancPluginCreateMemoryBuffer64(context, target, s.size()) != OrthancPluginErrorCode_Success)
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150 {
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151 return OrthancPluginErrorCode_NotEnoughMemory;
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152 }
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153
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154 if (!s.empty())
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155 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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156 memcpy(target->data, s.c_str(), s.size());
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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157 }
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158
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159 return OrthancPluginErrorCode_Success;
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160 }
208dc67b9bab sample custom storage plugin
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161 else
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162 {
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163 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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164 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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165 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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166
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167 static OrthancPluginErrorCode StorageReadRange(OrthancPluginMemoryBuffer64* target,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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168 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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169 OrthancPluginContentType type,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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170 uint64_t rangeStart)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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171 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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172 const size_t rangeSize = target->size; // The buffer is allocated by Orthanc
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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173 const std::string path = GetPath(uuid);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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174
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175 std::string s;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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176
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177 if (rangeSize == 0)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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178 {
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179 return OrthancPluginErrorCode_Success;
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180 }
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181 else if (ReadFile(s, path))
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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182 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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183 if (rangeStart + rangeSize > s.size())
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184 {
4483
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185 return OrthancPluginErrorCode_BadRange;
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186 }
4483
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187 else
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188 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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189 memcpy(target->data, &s[rangeStart], rangeSize);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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190 }
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191
4483
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192 return OrthancPluginErrorCode_Success;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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193 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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194 else
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195 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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196 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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197 }
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198 }
1136
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199
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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diff changeset
200 #endif
1136
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201
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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202
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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203 static OrthancPluginErrorCode StorageRemove(const char* uuid,
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
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204 OrthancPluginContentType type)
1136
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205 {
208dc67b9bab sample custom storage plugin
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206 std::string path = GetPath(uuid);
1627
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207
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
208 if (remove(path.c_str()) == 0)
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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209 {
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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210 return OrthancPluginErrorCode_Success;
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
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211 }
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1425
diff changeset
212 else
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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213 {
1643
87c77b9b3679 provision for error codes in plugins
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
214 return OrthancPluginErrorCode_StorageAreaPlugin;
1627
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215 }
1136
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216 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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217
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
218
208dc67b9bab sample custom storage plugin
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parents:
diff changeset
219 extern "C"
208dc67b9bab sample custom storage plugin
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220 {
208dc67b9bab sample custom storage plugin
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parents:
diff changeset
221 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
208dc67b9bab sample custom storage plugin
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222 {
208dc67b9bab sample custom storage plugin
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diff changeset
223 context = c;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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224 OrthancPluginLogWarning(context, "Storage plugin is initializing");
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
225
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
226 /* Check the version of the Orthanc core */
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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227 if (OrthancPluginCheckVersion(c) == 0)
208dc67b9bab sample custom storage plugin
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228 {
1304
7b6925b0890d cppcheck
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
229 char info[1024];
1136
208dc67b9bab sample custom storage plugin
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230 sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 c->orthancVersion,
208dc67b9bab sample custom storage plugin
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parents:
diff changeset
232 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
208dc67b9bab sample custom storage plugin
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233 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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234 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235 OrthancPluginLogError(context, info);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
236 return -1;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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237 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
239 #if USE_LEGACY_API == 1
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240 OrthancPluginRegisterStorageArea(context, StorageCreate, StorageRead, StorageRemove);
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
241 #else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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diff changeset
242 OrthancPluginRegisterStorageArea2(context, StorageCreate, StorageReadWhole, StorageReadRange, StorageRemove);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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diff changeset
243 #endif
1136
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244
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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245 return 0;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
246 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
247
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
248
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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249 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
250 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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251 OrthancPluginLogWarning(context, "Storage plugin is finalizing");
208dc67b9bab sample custom storage plugin
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parents:
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252 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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253
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
254
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
255 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
208dc67b9bab sample custom storage plugin
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parents:
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256 {
208dc67b9bab sample custom storage plugin
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parents:
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257 return "storage";
208dc67b9bab sample custom storage plugin
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parents:
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258 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
259
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
260
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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261 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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262 {
208dc67b9bab sample custom storage plugin
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263 return "1.0";
208dc67b9bab sample custom storage plugin
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264 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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265 }