Mercurial > cpython-lru_cache-weakref

annotate Objects/capsule.c @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents d11fbc796499
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
59998
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
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1 /* Wrap void * pointers to be passed between C modules */
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2
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3 #include "Python.h"
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4
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5 /* Internal structure of PyCapsule */
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6 typedef struct {
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7 PyObject_HEAD
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8 void *pointer;
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9 const char *name;
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10 void *context;
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11 PyCapsule_Destructor destructor;
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12 } PyCapsule;
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13
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14
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15
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16 static int
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17 _is_legal_capsule(PyCapsule *capsule, const char *invalid_capsule)
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18 {
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19 if (!capsule || !PyCapsule_CheckExact(capsule) || capsule->pointer == NULL) {
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20 PyErr_SetString(PyExc_ValueError, invalid_capsule);
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21 return 0;
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22 }
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23 return 1;
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24 }
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25
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26 #define is_legal_capsule(capsule, name) \
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27 (_is_legal_capsule(capsule, \
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28 name " called with invalid PyCapsule object"))
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29
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30
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31 static int
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32 name_matches(const char *name1, const char *name2) {
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33 /* if either is NULL, */
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34 if (!name1 || !name2) {
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35 /* they're only the same if they're both NULL. */
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36 return name1 == name2;
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37 }
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38 return !strcmp(name1, name2);
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39 }
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40
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41
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42
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43 PyObject *
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44 PyCapsule_New(void *pointer, const char *name, PyCapsule_Destructor destructor)
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45 {
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46 PyCapsule *capsule;
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47
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48 if (!pointer) {
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49 PyErr_SetString(PyExc_ValueError, "PyCapsule_New called with null pointer");
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50 return NULL;
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51 }
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52
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53 capsule = PyObject_NEW(PyCapsule, &PyCapsule_Type);
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54 if (capsule == NULL) {
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55 return NULL;
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56 }
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57
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58 capsule->pointer = pointer;
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59 capsule->name = name;
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60 capsule->context = NULL;
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61 capsule->destructor = destructor;
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62
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63 return (PyObject *)capsule;
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64 }
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65
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66
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67 int
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68 PyCapsule_IsValid(PyObject *o, const char *name)
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69 {
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70 PyCapsule *capsule = (PyCapsule *)o;
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71
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72 return (capsule != NULL &&
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73 PyCapsule_CheckExact(capsule) &&
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74 capsule->pointer != NULL &&
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75 name_matches(capsule->name, name));
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76 }
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77
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78
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79 void *
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80 PyCapsule_GetPointer(PyObject *o, const char *name)
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81 {
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82 PyCapsule *capsule = (PyCapsule *)o;
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83
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84 if (!is_legal_capsule(capsule, "PyCapsule_GetPointer")) {
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85 return NULL;
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86 }
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87
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88 if (!name_matches(name, capsule->name)) {
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89 PyErr_SetString(PyExc_ValueError, "PyCapsule_GetPointer called with incorrect name");
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90 return NULL;
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91 }
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92
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93 return capsule->pointer;
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94 }
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95
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96
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97 const char *
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98 PyCapsule_GetName(PyObject *o)
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99 {
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100 PyCapsule *capsule = (PyCapsule *)o;
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101
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102 if (!is_legal_capsule(capsule, "PyCapsule_GetName")) {
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103 return NULL;
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104 }
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105 return capsule->name;
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106 }
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107
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108
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109 PyCapsule_Destructor
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110 PyCapsule_GetDestructor(PyObject *o)
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111 {
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112 PyCapsule *capsule = (PyCapsule *)o;
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113
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114 if (!is_legal_capsule(capsule, "PyCapsule_GetDestructor")) {
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115 return NULL;
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116 }
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117 return capsule->destructor;
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118 }
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119
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120
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121 void *
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122 PyCapsule_GetContext(PyObject *o)
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123 {
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124 PyCapsule *capsule = (PyCapsule *)o;
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125
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126 if (!is_legal_capsule(capsule, "PyCapsule_GetContext")) {
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127 return NULL;
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128 }
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129 return capsule->context;
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130 }
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131
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132
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133 int
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134 PyCapsule_SetPointer(PyObject *o, void *pointer)
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135 {
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136 PyCapsule *capsule = (PyCapsule *)o;
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137
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138 if (!pointer) {
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139 PyErr_SetString(PyExc_ValueError, "PyCapsule_SetPointer called with null pointer");
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140 return -1;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
141 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
142
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
143 if (!is_legal_capsule(capsule, "PyCapsule_SetPointer")) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
144 return -1;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
145 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
146
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
147 capsule->pointer = pointer;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
148 return 0;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
149 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
150
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
151
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
152 int
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
153 PyCapsule_SetName(PyObject *o, const char *name)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
154 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
155 PyCapsule *capsule = (PyCapsule *)o;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
156
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
157 if (!is_legal_capsule(capsule, "PyCapsule_SetName")) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
158 return -1;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
159 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
160
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
161 capsule->name = name;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
162 return 0;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
163 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
164
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
165
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
166 int
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
167 PyCapsule_SetDestructor(PyObject *o, PyCapsule_Destructor destructor)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
168 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
169 PyCapsule *capsule = (PyCapsule *)o;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
170
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
171 if (!is_legal_capsule(capsule, "PyCapsule_SetDestructor")) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
172 return -1;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
173 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
174
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
175 capsule->destructor = destructor;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
176 return 0;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
177 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
178
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
179
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
180 int
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
181 PyCapsule_SetContext(PyObject *o, void *context)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
182 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
183 PyCapsule *capsule = (PyCapsule *)o;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
184
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
185 if (!is_legal_capsule(capsule, "PyCapsule_SetContext")) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
186 return -1;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
187 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
188
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
189 capsule->context = context;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
190 return 0;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
191 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
192
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
193
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
194 void *
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
195 PyCapsule_Import(const char *name, int no_block)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
196 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
197 PyObject *object = NULL;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
198 void *return_value = NULL;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
199 char *trace;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
200 size_t name_length = (strlen(name) + 1) * sizeof(char);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
201 char *name_dup = (char *)PyMem_MALLOC(name_length);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
202
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
203 if (!name_dup) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
204 return NULL;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
205 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
206
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
207 memcpy(name_dup, name, name_length);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
208
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
209 trace = name_dup;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
210 while (trace) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
211 char *dot = strchr(trace, '.');
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
212 if (dot) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
213 *dot++ = '\0';
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
214 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
215
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
216 if (object == NULL) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
217 if (no_block) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
218 object = PyImport_ImportModuleNoBlock(trace);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
219 } else {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
220 object = PyImport_ImportModule(trace);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
221 if (!object) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
222 PyErr_Format(PyExc_ImportError, "PyCapsule_Import could not import module \"%s\"", trace);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
223 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
224 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
225 } else {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
226 PyObject *object2 = PyObject_GetAttrString(object, trace);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
227 Py_DECREF(object);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
228 object = object2;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
229 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
230 if (!object) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
231 goto EXIT;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
232 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
233
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
234 trace = dot;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
235 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
236
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
237 /* compare attribute name to module.name by hand */
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
238 if (PyCapsule_IsValid(object, name)) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
239 PyCapsule *capsule = (PyCapsule *)object;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
240 return_value = capsule->pointer;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
241 } else {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
242 PyErr_Format(PyExc_AttributeError,
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
243 "PyCapsule_Import \"%s\" is not valid",
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
244 name);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
245 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
246
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
247 EXIT:
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
248 Py_XDECREF(object);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
249 if (name_dup) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
250 PyMem_FREE(name_dup);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
251 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
252 return return_value;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
253 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
254
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
255
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
256 static void
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
257 capsule_dealloc(PyObject *o)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
258 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
259 PyCapsule *capsule = (PyCapsule *)o;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
260 if (capsule->destructor) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
261 capsule->destructor(o);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
262 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
263 PyObject_DEL(o);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
264 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
265
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
266
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
267 static PyObject *
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
268 capsule_repr(PyObject *o)
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
269 {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
270 PyCapsule *capsule = (PyCapsule *)o;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
271 const char *name;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
272 const char *quote;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
273
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
274 if (capsule->name) {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
275 quote = "\"";
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
276 name = capsule->name;
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
277 } else {
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
278 quote = "";
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
279 name = "NULL";
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
280 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
281
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
282 return PyString_FromFormat("<capsule object %s%s%s at %p>",
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
283 quote, name, quote, capsule);
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
Larry Hastings <larry@hastings.org>
parents:
diff changeset
284 }
d11fbc796499 Backported PyCapsule from 3.1, and converted most uses of
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285
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286
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287
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288 PyDoc_STRVAR(PyCapsule_Type__doc__,
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289 "Capsule objects let you wrap a C \"void *\" pointer in a Python\n\
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290 object. They're a way of passing data through the Python interpreter\n\
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291 without creating your own custom type.\n\
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292 \n\
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293 Capsules are used for communication between extension modules.\n\
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294 They provide a way for an extension module to export a C interface\n\
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295 to other extension modules, so that extension modules can use the\n\
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296 Python import mechanism to link to one another.\n\
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297 ");
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298
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299 PyTypeObject PyCapsule_Type = {
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300 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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301 "PyCapsule", /*tp_name*/
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302 sizeof(PyCapsule), /*tp_basicsize*/
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303 0, /*tp_itemsize*/
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304 /* methods */
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305 capsule_dealloc, /*tp_dealloc*/
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306 0, /*tp_print*/
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307 0, /*tp_getattr*/
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308 0, /*tp_setattr*/
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309 0, /*tp_reserved*/
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310 capsule_repr, /*tp_repr*/
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311 0, /*tp_as_number*/
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312 0, /*tp_as_sequence*/
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313 0, /*tp_as_mapping*/
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314 0, /*tp_hash*/
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315 0, /*tp_call*/
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316 0, /*tp_str*/
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317 0, /*tp_getattro*/
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318 0, /*tp_setattro*/
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319 0, /*tp_as_buffer*/
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320 0, /*tp_flags*/
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321 PyCapsule_Type__doc__ /*tp_doc*/
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322 };
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323
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324