Mercurial > hg > orthanc

annotate OrthancServer/Plugins/Samples/StorageArea/Plugin.cpp @ 4483:a926f8995d0b

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sample for OrthancPluginRegisterStorageArea2()
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 28 Jan 2021 16:59:40 +0100
parents d9473bd5ed43
children 5b929e6b3c36
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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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29 #define USE_LEGACY_API 0
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31
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32 static OrthancPluginContext* context = NULL;
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33
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34
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35 static std::string GetPath(const char* uuid)
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36 {
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37 return "plugin_" + std::string(uuid);
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38 }
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39
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40
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41 static bool ReadFile(std::string& content,
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42 const std::string& path)
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43 {
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44 FILE* fp = fopen(path.c_str(), "rb");
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45 if (!fp)
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46 {
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47 return false;
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48 }
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49
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50 if (fseek(fp, 0, SEEK_END) < 0)
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51 {
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52 fclose(fp);
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53 return false;
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54 }
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55
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56 long size = ftell(fp);
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57
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58 if (fseek(fp, 0, SEEK_SET) < 0)
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59 {
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60 fclose(fp);
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61 return false;
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62 }
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63 else
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64 {
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65 content.resize(size);
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66
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67 if (size != 0)
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68 {
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69 bool success = (fread(&content[0], size, 1, fp) == 1);
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70 fclose(fp);
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71 return success;
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72 }
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73 else
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74 {
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75 fclose(fp);
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76 return true;
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77 }
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78 }
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79 }
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81
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82 static OrthancPluginErrorCode StorageCreate(const char* uuid,
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83 const void* content,
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84 int64_t size,
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85 OrthancPluginContentType type)
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86 {
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87 std::string path = GetPath(uuid);
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88
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89 FILE* fp = fopen(path.c_str(), "wb");
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90 if (!fp)
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91 {
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92 return OrthancPluginErrorCode_StorageAreaPlugin;
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93 }
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94
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95 bool ok = fwrite(content, size, 1, fp) == 1;
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96 fclose(fp);
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97
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98 return ok ? OrthancPluginErrorCode_Success : OrthancPluginErrorCode_StorageAreaPlugin;
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99 }
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100
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101
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102 #if USE_LEGACY_API == 1
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103 static OrthancPluginErrorCode StorageRead(void** content,
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104 int64_t* size,
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105 const char* uuid,
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106 OrthancPluginContentType type)
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107 {
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108 const std::string path = GetPath(uuid);
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109
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110 std::string s;
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111 if (ReadFile(s, path))
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112 {
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113 *size = s.size();
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114
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115 if (s.size() == 0)
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116 {
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117 *content = NULL;
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118 }
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119 else
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120 {
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121 *content = malloc(s.size());
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122 if (*content == NULL)
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123 {
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124 return OrthancPluginErrorCode_StorageAreaPlugin;
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125 }
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126
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127 if (!s.empty())
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128 {
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129 memcpy(*content, s.c_str(), s.size());
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130 }
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131 }
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132
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133 return OrthancPluginErrorCode_Success;
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134 }
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135 else
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136 {
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87c77b9b3679 provision for error codes in plugins
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137 return OrthancPluginErrorCode_StorageAreaPlugin;
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138 }
4483
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139 }
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140
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Sebastien Jodogne <s.jodogne@gmail.com>
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141 #else
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142
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Sebastien Jodogne <s.jodogne@gmail.com>
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143 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target,
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144 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
145 OrthancPluginContentType type)
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Sebastien Jodogne <s.jodogne@gmail.com>
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146 {
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147 const std::string path = GetPath(uuid);
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148
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149 std::string s;
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150 if (ReadFile(s, path))
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151 {
4483
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152 if (OrthancPluginCreateMemoryBuffer64(context, target, s.size()) != OrthancPluginErrorCode_Success)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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153 {
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154 return OrthancPluginErrorCode_NotEnoughMemory;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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155 }
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156
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Sebastien Jodogne <s.jodogne@gmail.com>
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157 if (!s.empty())
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Sebastien Jodogne <s.jodogne@gmail.com>
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158 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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159 memcpy(target->data, s.c_str(), s.size());
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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160 }
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161
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Sebastien Jodogne <s.jodogne@gmail.com>
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162 return OrthancPluginErrorCode_Success;
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163 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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164 else
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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165 {
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166 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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167 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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168 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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169
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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170 static OrthancPluginErrorCode StorageReadRange(OrthancPluginMemoryBuffer64* target,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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diff changeset
171 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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172 OrthancPluginContentType type,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
173 uint64_t rangeStart)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
174 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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175 const size_t rangeSize = target->size; // The buffer is allocated by Orthanc
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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176 const std::string path = GetPath(uuid);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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177
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178 std::string s;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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179
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
180 if (rangeSize == 0)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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181 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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182 return OrthancPluginErrorCode_Success;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
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183 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
184 else if (ReadFile(s, path))
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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185 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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186 if (rangeStart + rangeSize > s.size())
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187 {
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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188 return OrthancPluginErrorCode_BadRange;
1136
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189 }
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
190 else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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191 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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192 memcpy(target->data, &s[rangeStart], rangeSize);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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193 }
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208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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194
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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195 return OrthancPluginErrorCode_Success;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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196 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
197 else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
198 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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199 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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200 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
201 }
1136
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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202
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
203 #endif
1136
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204
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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205
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
206 static OrthancPluginErrorCode StorageRemove(const char* uuid,
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
207 OrthancPluginContentType type)
1136
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
208 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
209 std::string path = GetPath(uuid);
1627
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210
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
211 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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diff changeset
212 {
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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213 return OrthancPluginErrorCode_Success;
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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214 }
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1425
diff changeset
215 else
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1425
diff changeset
216 {
1643
87c77b9b3679 provision for error codes in plugins
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
217 return OrthancPluginErrorCode_StorageAreaPlugin;
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
218 }
1136
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219 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
220
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
221
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
222 extern "C"
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
223 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
224 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
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>
parents:
diff changeset
226 context = c;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
227 OrthancPluginLogWarning(context, "Storage plugin is initializing");
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
229 /* Check the version of the Orthanc core */
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
230 if (OrthancPluginCheckVersion(c) == 0)
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 {
1304
7b6925b0890d cppcheck
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
232 char info[1024];
1136
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
233 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
234 c->orthancVersion,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238 OrthancPluginLogError(context, info);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239 return -1;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
240 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
241
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
242 #if USE_LEGACY_API == 1
1136
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
243 OrthancPluginRegisterStorageArea(context, StorageCreate, StorageRead, StorageRemove);
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
244 #else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
245 OrthancPluginRegisterStorageArea2(context, StorageCreate, StorageReadWhole, StorageReadRange, StorageRemove);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
246 #endif
1136
208dc67b9bab sample custom storage plugin
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247
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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248 return 0;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
249 }
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>
parents:
diff changeset
251
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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252 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
253 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
254 OrthancPluginLogWarning(context, "Storage plugin is finalizing");
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
255 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
256
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
257
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
258 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
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 return "storage";
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
261 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
262
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
263
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
264 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
265 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
266 return "1.0";
208dc67b9bab sample custom storage plugin
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parents:
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267 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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268 }