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annotate Sources/ICallbackRegistration.cpp @ 227:9574f06d8588 default tip

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author Alain Mazy <am@orthanc.team>
date Tue, 24 Sep 2024 08:54:11 +0200
parents 3678a028f1f6
children
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1 /**
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2 * SPDX-FileCopyrightText: 2020-2023 Osimis S.A., 2024-2024 Orthanc Team SRL, 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain
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3 * SPDX-License-Identifier: AGPL-3.0-or-later
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4 */
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5
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6 /**
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7 * Python plugin for Orthanc
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8 * Copyright (C) 2020-2023 Osimis S.A., Belgium
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9 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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71d305c29cfa updated year to 2024
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10 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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11 *
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12 * This program is free software: you can redistribute it and/or
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13 * modify it under the terms of the GNU Affero General Public License
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14 * as published by the Free Software Foundation, either version 3 of
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15 * the License, or (at your option) any later version.
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16 *
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17 * This program is distributed in the hope that it will be useful, but
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18 * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 * Affero General Public License for more details.
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21 *
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22 * You should have received a copy of the GNU Affero General Public License
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23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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24 **/
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27 #include "ICallbackRegistration.h"
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29 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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30 #include "PythonLock.h"
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31
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32 PyObject *ICallbackRegistration::Apply(ICallbackRegistration& registration,
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33 PyObject* args,
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34 PyObject*& singletonCallback,
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35 const std::string& details)
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36 {
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37 // https://docs.python.org/3/extending/extending.html#calling-python-functions-from-c
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38 PyObject* callback = NULL;
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39
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40 if (!PyArg_ParseTuple(args, "O", &callback) ||
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41 callback == NULL)
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42 {
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43 const std::string message = "Expected a callback function to register one " + details;
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44 PyErr_SetString(PyExc_ValueError, message.c_str());
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45 return NULL;
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46 }
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47 else if (singletonCallback != NULL)
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48 {
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49 const std::string message = "Can only register one " + details;
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50 PyErr_SetString(PyExc_RuntimeError, message.c_str());
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51 return NULL;
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52 }
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53 else
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54 {
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55 ORTHANC_PLUGINS_LOG_INFO("Registering one " + details);
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56 registration.Register();
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58 singletonCallback = callback;
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59 Py_XINCREF(singletonCallback);
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61 Py_INCREF(Py_None);
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62 return Py_None;
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63 }
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64 }
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67 PyObject *ICallbackRegistration::Apply2(ICallbackRegistration& registration,
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68 PyObject* args,
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69 PyObject*& singletonCallback1,
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70 PyObject*& singletonCallback2,
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71 const std::string& details)
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72 {
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73 // https://docs.python.org/3/extending/extending.html#calling-python-functions-from-c
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74 PyObject* callback1 = NULL;
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75 PyObject* callback2 = NULL;
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76
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77 if (!PyArg_ParseTuple(args, "OO", &callback1, &callback2) ||
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78 callback1 == NULL || callback2 == NULL)
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79 {
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80 const std::string message = "Expected two callback functions to register " + details;
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81 PyErr_SetString(PyExc_ValueError, message.c_str());
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82 return NULL;
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83 }
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84 else if (singletonCallback1 != NULL || singletonCallback2 != NULL)
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85 {
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86 const std::string message = "Can only register once for " + details;
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87 PyErr_SetString(PyExc_RuntimeError, message.c_str());
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88 return NULL;
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89 }
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90 else
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91 {
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92 ORTHANC_PLUGINS_LOG_INFO("Registering callbacks " + details);
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93 registration.Register();
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94
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95 singletonCallback1 = callback1;
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96 Py_XINCREF(singletonCallback1);
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97
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98 singletonCallback2 = callback2;
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99 Py_XINCREF(singletonCallback2);
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100
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101 Py_INCREF(Py_None);
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102 return Py_None;
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103 }
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104 }
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105
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106 PyObject *ICallbackRegistration::Apply4(ICallbackRegistration& registration,
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107 PyObject* args,
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108 PyObject*& singletonCallback1,
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109 PyObject*& singletonCallback2,
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110 PyObject*& singletonCallback3,
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111 PyObject*& singletonCallback4,
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112 const std::string& details)
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113 {
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114 // https://docs.python.org/3/extending/extending.html#calling-python-functions-from-c
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115 PyObject* callback1 = NULL;
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116 PyObject* callback2 = NULL;
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117 PyObject* callback3 = NULL;
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118 PyObject* callback4 = NULL;
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119
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120 if (!PyArg_ParseTuple(args, "OOOO", &callback1, &callback2, &callback3, &callback4) ||
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121 callback1 == NULL || callback2 == NULL || callback3 == NULL || callback4 == NULL)
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122 {
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123 const std::string message = "Expected 4 callback functions to register " + details;
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124 PyErr_SetString(PyExc_ValueError, message.c_str());
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125 return NULL;
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126 }
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127 else if (singletonCallback1 != NULL || singletonCallback2 != NULL || singletonCallback3 != NULL || singletonCallback4 != NULL)
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128 {
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129 const std::string message = "Can only register once for " + details;
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130 PyErr_SetString(PyExc_RuntimeError, message.c_str());
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131 return NULL;
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132 }
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133 else
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134 {
171
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135 ORTHANC_PLUGINS_LOG_INFO("Registering callbacks " + details);
151
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136 registration.Register();
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137
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138 singletonCallback1 = callback1;
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139 Py_XINCREF(singletonCallback1);
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140
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141 singletonCallback2 = callback2;
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142 Py_XINCREF(singletonCallback2);
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143
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144 singletonCallback3 = callback3;
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145 Py_XINCREF(singletonCallback3);
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146
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147 singletonCallback4 = callback4;
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148 Py_XINCREF(singletonCallback4);
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149
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150 Py_INCREF(Py_None);
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151 return Py_None;
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152 }
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153 }
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154
119
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155
63
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156 void ICallbackRegistration::Unregister(PyObject*& singletonCallback)
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157 {
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158 PythonLock lock;
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159
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160 if (singletonCallback != NULL)
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161 {
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162 Py_XDECREF(singletonCallback);
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163 }
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164 }