Mercurial > hg > orthanc

annotate OrthancServer/Plugins/Samples/StorageArea/Plugin.cpp @ 5153:217863b09457 malloc-trim

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malloc_trim doc
author Alain Mazy <am@osimis.io>
date Wed, 01 Feb 2023 19:23:58 +0100
parents 43e613a7756b
children 0ea402b4d901
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU General Public License as
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10 * published by the Free Software Foundation, either version 3 of the
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11 * License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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23 #include <orthanc/OrthancCPlugin.h>
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24
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25 #include <string.h>
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26 #include <stdio.h>
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27 #include <string>
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28
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29
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30 static OrthancPluginContext* context = NULL;
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31
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32
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33 static std::string GetPath(const char* uuid)
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34 {
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35 return "plugin_" + std::string(uuid);
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36 }
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38
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39 static bool ReadFile(std::string& content,
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40 const std::string& path)
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41 {
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42 FILE* fp = fopen(path.c_str(), "rb");
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43 if (!fp)
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44 {
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45 return false;
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46 }
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48 if (fseek(fp, 0, SEEK_END) < 0)
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49 {
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50 fclose(fp);
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51 return false;
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52 }
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53
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54 long size = ftell(fp);
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56 if (fseek(fp, 0, SEEK_SET) < 0)
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57 {
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58 fclose(fp);
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59 return false;
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60 }
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61 else
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62 {
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63 content.resize(size);
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64
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65 if (size != 0)
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66 {
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67 bool success = (fread(&content[0], size, 1, fp) == 1);
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68 fclose(fp);
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69 return success;
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70 }
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71 else
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72 {
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73 fclose(fp);
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74 return true;
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75 }
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76 }
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77 }
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78
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79
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80 static OrthancPluginErrorCode StorageCreate(const char* uuid,
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81 const void* content,
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82 int64_t size,
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83 OrthancPluginContentType type)
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84 {
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85 std::string path = GetPath(uuid);
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86
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87 FILE* fp = fopen(path.c_str(), "wb");
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88 if (!fp)
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89 {
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90 return OrthancPluginErrorCode_StorageAreaPlugin;
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91 }
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92
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93 bool ok = fwrite(content, size, 1, fp) == 1;
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94 fclose(fp);
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95
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96 return ok ? OrthancPluginErrorCode_Success : OrthancPluginErrorCode_StorageAreaPlugin;
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97 }
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98
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99
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100 #if USE_LEGACY_API == 1
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101 static OrthancPluginErrorCode StorageRead(void** content,
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102 int64_t* size,
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103 const char* uuid,
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104 OrthancPluginContentType type)
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105 {
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106 const std::string path = GetPath(uuid);
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107
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108 std::string s;
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109 if (ReadFile(s, path))
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110 {
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111 *size = s.size();
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112
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113 if (s.size() == 0)
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114 {
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115 *content = NULL;
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116 }
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117 else
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118 {
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119 *content = malloc(s.size());
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120 if (*content == NULL)
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121 {
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122 return OrthancPluginErrorCode_StorageAreaPlugin;
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123 }
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124
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125 if (!s.empty())
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126 {
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127 memcpy(*content, s.c_str(), s.size());
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128 }
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129 }
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130
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131 return OrthancPluginErrorCode_Success;
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132 }
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133 else
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134 {
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135 return OrthancPluginErrorCode_StorageAreaPlugin;
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136 }
4483
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137 }
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138
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139 #else
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140
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141 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64* target,
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142 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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143 OrthancPluginContentType type)
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Sebastien Jodogne <s.jodogne@gmail.com>
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144 {
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145 const std::string path = GetPath(uuid);
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146
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147 std::string s;
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148 if (ReadFile(s, path))
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149 {
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150 if (OrthancPluginCreateMemoryBuffer64(context, target, s.size()) != OrthancPluginErrorCode_Success)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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151 {
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152 return OrthancPluginErrorCode_NotEnoughMemory;
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153 }
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154
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Sebastien Jodogne <s.jodogne@gmail.com>
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155 if (!s.empty())
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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156 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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157 memcpy(target->data, s.c_str(), s.size());
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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158 }
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159
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160 return OrthancPluginErrorCode_Success;
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161 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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162 else
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
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163 {
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164 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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165 }
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Sebastien Jodogne <s.jodogne@gmail.com>
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166 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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167
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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168 static OrthancPluginErrorCode StorageReadRange(OrthancPluginMemoryBuffer64* target,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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169 const char* uuid,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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170 OrthancPluginContentType type,
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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171 uint64_t rangeStart)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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172 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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173 const size_t rangeSize = target->size; // The buffer is allocated by Orthanc
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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174 const std::string path = GetPath(uuid);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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175
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176 std::string s;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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177
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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178 if (rangeSize == 0)
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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179 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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180 return OrthancPluginErrorCode_Success;
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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diff changeset
182 else if (ReadFile(s, path))
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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183 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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184 if (rangeStart + rangeSize > s.size())
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185 {
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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186 return OrthancPluginErrorCode_BadRange;
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187 }
4483
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Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
188 else
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Sebastien Jodogne <s.jodogne@gmail.com>
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189 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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190 memcpy(target->data, &s[rangeStart], rangeSize);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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191 }
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192
4483
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193 return OrthancPluginErrorCode_Success;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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194 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
195 else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
196 {
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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197 return OrthancPluginErrorCode_StorageAreaPlugin;
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
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198 }
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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199 }
1136
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Sebastien Jodogne <s.jodogne@gmail.com>
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200
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
201 #endif
1136
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202
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
203
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
204 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
205 OrthancPluginContentType type)
1136
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Sebastien Jodogne <s.jodogne@gmail.com>
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206 {
208dc67b9bab sample custom storage plugin
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diff changeset
207 std::string path = GetPath(uuid);
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
208
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
209 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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210 {
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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211 return OrthancPluginErrorCode_Success;
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
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212 }
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1425
diff changeset
213 else
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1425
diff changeset
214 {
1643
87c77b9b3679 provision for error codes in plugins
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
215 return OrthancPluginErrorCode_StorageAreaPlugin;
1627
da7854deb662 Plugin callbacks must now return explicit "OrthancPluginErrorCode" instead of integers
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diff changeset
216 }
1136
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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
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
219
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
220 extern "C"
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 ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
208dc67b9bab sample custom storage plugin
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223 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
224 context = c;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
225 OrthancPluginLogWarning(context, "Storage plugin is initializing");
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
226
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
227 /* Check the version of the Orthanc core */
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
228 if (OrthancPluginCheckVersion(c) == 0)
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
229 {
1304
7b6925b0890d cppcheck
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
230 char info[1024];
1136
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
231 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
232 c->orthancVersion,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
233 ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
234 ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
235 ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
236 OrthancPluginLogError(context, info);
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
237 return -1;
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
238 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
239
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
240 #if USE_LEGACY_API == 1
1136
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Sebastien Jodogne <s.jodogne@gmail.com>
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241 OrthancPluginRegisterStorageArea(context, StorageCreate, StorageRead, StorageRemove);
4483
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
242 #else
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
243 OrthancPluginRegisterStorageArea2(context, StorageCreate, StorageReadWhole, StorageReadRange, StorageRemove);
a926f8995d0b sample for OrthancPluginRegisterStorageArea2()
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 4437
diff changeset
244 #endif
1136
208dc67b9bab sample custom storage plugin
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245
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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246 return 0;
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:
diff changeset
249
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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250 ORTHANC_PLUGINS_API void OrthancPluginFinalize()
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:
diff changeset
252 OrthancPluginLogWarning(context, "Storage plugin is finalizing");
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
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
256 ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
208dc67b9bab sample custom storage plugin
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parents:
diff changeset
257 {
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
258 return "storage";
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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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:
diff changeset
261
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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262 ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
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 return "1.0";
208dc67b9bab sample custom storage plugin
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parents:
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265 }
208dc67b9bab sample custom storage plugin
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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266 }