1 | n/a | /* connection.c - the connection type |
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2 | n/a | * |
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3 | n/a | * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de> |
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4 | n/a | * |
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5 | n/a | * This file is part of pysqlite. |
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6 | n/a | * |
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7 | n/a | * This software is provided 'as-is', without any express or implied |
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8 | n/a | * warranty. In no event will the authors be held liable for any damages |
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9 | n/a | * arising from the use of this software. |
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10 | n/a | * |
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11 | n/a | * Permission is granted to anyone to use this software for any purpose, |
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12 | n/a | * including commercial applications, and to alter it and redistribute it |
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13 | n/a | * freely, subject to the following restrictions: |
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14 | n/a | * |
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15 | n/a | * 1. The origin of this software must not be misrepresented; you must not |
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16 | n/a | * claim that you wrote the original software. If you use this software |
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17 | n/a | * in a product, an acknowledgment in the product documentation would be |
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18 | n/a | * appreciated but is not required. |
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19 | n/a | * 2. Altered source versions must be plainly marked as such, and must not be |
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20 | n/a | * misrepresented as being the original software. |
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21 | n/a | * 3. This notice may not be removed or altered from any source distribution. |
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22 | n/a | */ |
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23 | n/a | |
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24 | n/a | #include "cache.h" |
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25 | n/a | #include "module.h" |
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26 | n/a | #include "structmember.h" |
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27 | n/a | #include "connection.h" |
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28 | n/a | #include "statement.h" |
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29 | n/a | #include "cursor.h" |
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30 | n/a | #include "prepare_protocol.h" |
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31 | n/a | #include "util.h" |
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32 | n/a | |
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33 | n/a | #include "pythread.h" |
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34 | n/a | |
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35 | n/a | #define ACTION_FINALIZE 1 |
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36 | n/a | #define ACTION_RESET 2 |
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37 | n/a | |
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38 | n/a | #if SQLITE_VERSION_NUMBER >= 3003008 |
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39 | n/a | #ifndef SQLITE_OMIT_LOAD_EXTENSION |
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40 | n/a | #define HAVE_LOAD_EXTENSION |
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41 | n/a | #endif |
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42 | n/a | #endif |
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43 | n/a | |
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44 | n/a | _Py_IDENTIFIER(cursor); |
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45 | n/a | |
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46 | n/a | static const char * const begin_statements[] = { |
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47 | n/a | "BEGIN ", |
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48 | n/a | "BEGIN DEFERRED", |
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49 | n/a | "BEGIN IMMEDIATE", |
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50 | n/a | "BEGIN EXCLUSIVE", |
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51 | n/a | NULL |
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52 | n/a | }; |
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53 | n/a | |
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54 | n/a | static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level); |
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55 | n/a | static void _pysqlite_drop_unused_cursor_references(pysqlite_Connection* self); |
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56 | n/a | |
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57 | n/a | |
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58 | n/a | static void _sqlite3_result_error(sqlite3_context* ctx, const char* errmsg, int len) |
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59 | n/a | { |
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60 | n/a | /* in older SQLite versions, calling sqlite3_result_error in callbacks |
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61 | n/a | * triggers a bug in SQLite that leads either to irritating results or |
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62 | n/a | * segfaults, depending on the SQLite version */ |
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63 | n/a | #if SQLITE_VERSION_NUMBER >= 3003003 |
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64 | n/a | sqlite3_result_error(ctx, errmsg, len); |
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65 | n/a | #else |
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66 | n/a | PyErr_SetString(pysqlite_OperationalError, errmsg); |
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67 | n/a | #endif |
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68 | n/a | } |
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69 | n/a | |
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70 | n/a | int pysqlite_connection_init(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
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71 | n/a | { |
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72 | n/a | static char *kwlist[] = { |
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73 | n/a | "database", "timeout", "detect_types", "isolation_level", |
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74 | n/a | "check_same_thread", "factory", "cached_statements", "uri", |
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75 | n/a | NULL |
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76 | n/a | }; |
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77 | n/a | |
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78 | n/a | char* database; |
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79 | n/a | int detect_types = 0; |
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80 | n/a | PyObject* isolation_level = NULL; |
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81 | n/a | PyObject* factory = NULL; |
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82 | n/a | int check_same_thread = 1; |
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83 | n/a | int cached_statements = 100; |
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84 | n/a | int uri = 0; |
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85 | n/a | double timeout = 5.0; |
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86 | n/a | int rc; |
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87 | n/a | |
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88 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|diOiOip", kwlist, |
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89 | n/a | &database, &timeout, &detect_types, |
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90 | n/a | &isolation_level, &check_same_thread, |
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91 | n/a | &factory, &cached_statements, &uri)) |
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92 | n/a | { |
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93 | n/a | return -1; |
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94 | n/a | } |
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95 | n/a | |
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96 | n/a | self->initialized = 1; |
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97 | n/a | |
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98 | n/a | self->begin_statement = NULL; |
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99 | n/a | |
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100 | n/a | self->statement_cache = NULL; |
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101 | n/a | self->statements = NULL; |
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102 | n/a | self->cursors = NULL; |
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103 | n/a | |
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104 | n/a | Py_INCREF(Py_None); |
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105 | n/a | self->row_factory = Py_None; |
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106 | n/a | |
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107 | n/a | Py_INCREF(&PyUnicode_Type); |
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108 | n/a | self->text_factory = (PyObject*)&PyUnicode_Type; |
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109 | n/a | |
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110 | n/a | #ifdef SQLITE_OPEN_URI |
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111 | n/a | Py_BEGIN_ALLOW_THREADS |
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112 | n/a | rc = sqlite3_open_v2(database, &self->db, |
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113 | n/a | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | |
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114 | n/a | (uri ? SQLITE_OPEN_URI : 0), NULL); |
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115 | n/a | #else |
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116 | n/a | if (uri) { |
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117 | n/a | PyErr_SetString(pysqlite_NotSupportedError, "URIs not supported"); |
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118 | n/a | return -1; |
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119 | n/a | } |
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120 | n/a | Py_BEGIN_ALLOW_THREADS |
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121 | n/a | rc = sqlite3_open(database, &self->db); |
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122 | n/a | #endif |
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123 | n/a | Py_END_ALLOW_THREADS |
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124 | n/a | |
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125 | n/a | if (rc != SQLITE_OK) { |
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126 | n/a | _pysqlite_seterror(self->db, NULL); |
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127 | n/a | return -1; |
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128 | n/a | } |
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129 | n/a | |
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130 | n/a | if (!isolation_level) { |
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131 | n/a | isolation_level = PyUnicode_FromString(""); |
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132 | n/a | if (!isolation_level) { |
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133 | n/a | return -1; |
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134 | n/a | } |
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135 | n/a | } else { |
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136 | n/a | Py_INCREF(isolation_level); |
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137 | n/a | } |
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138 | n/a | self->isolation_level = NULL; |
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139 | n/a | if (pysqlite_connection_set_isolation_level(self, isolation_level) < 0) { |
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140 | n/a | Py_DECREF(isolation_level); |
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141 | n/a | return -1; |
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142 | n/a | } |
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143 | n/a | Py_DECREF(isolation_level); |
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144 | n/a | |
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145 | n/a | self->statement_cache = (pysqlite_Cache*)PyObject_CallFunction((PyObject*)&pysqlite_CacheType, "Oi", self, cached_statements); |
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146 | n/a | if (PyErr_Occurred()) { |
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147 | n/a | return -1; |
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148 | n/a | } |
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149 | n/a | |
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150 | n/a | self->created_statements = 0; |
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151 | n/a | self->created_cursors = 0; |
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152 | n/a | |
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153 | n/a | /* Create lists of weak references to statements/cursors */ |
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154 | n/a | self->statements = PyList_New(0); |
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155 | n/a | self->cursors = PyList_New(0); |
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156 | n/a | if (!self->statements || !self->cursors) { |
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157 | n/a | return -1; |
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158 | n/a | } |
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159 | n/a | |
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160 | n/a | /* By default, the Cache class INCREFs the factory in its initializer, and |
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161 | n/a | * decrefs it in its deallocator method. Since this would create a circular |
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162 | n/a | * reference here, we're breaking it by decrementing self, and telling the |
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163 | n/a | * cache class to not decref the factory (self) in its deallocator. |
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164 | n/a | */ |
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165 | n/a | self->statement_cache->decref_factory = 0; |
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166 | n/a | Py_DECREF(self); |
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167 | n/a | |
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168 | n/a | self->detect_types = detect_types; |
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169 | n/a | self->timeout = timeout; |
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170 | n/a | (void)sqlite3_busy_timeout(self->db, (int)(timeout*1000)); |
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171 | n/a | #ifdef WITH_THREAD |
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172 | n/a | self->thread_ident = PyThread_get_thread_ident(); |
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173 | n/a | #endif |
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174 | n/a | if (!check_same_thread && sqlite3_libversion_number() < 3003001) { |
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175 | n/a | PyErr_SetString(pysqlite_NotSupportedError, "shared connections not available"); |
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176 | n/a | return -1; |
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177 | n/a | } |
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178 | n/a | self->check_same_thread = check_same_thread; |
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179 | n/a | |
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180 | n/a | self->function_pinboard = PyDict_New(); |
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181 | n/a | if (!self->function_pinboard) { |
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182 | n/a | return -1; |
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183 | n/a | } |
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184 | n/a | |
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185 | n/a | self->collations = PyDict_New(); |
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186 | n/a | if (!self->collations) { |
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187 | n/a | return -1; |
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188 | n/a | } |
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189 | n/a | |
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190 | n/a | self->Warning = pysqlite_Warning; |
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191 | n/a | self->Error = pysqlite_Error; |
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192 | n/a | self->InterfaceError = pysqlite_InterfaceError; |
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193 | n/a | self->DatabaseError = pysqlite_DatabaseError; |
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194 | n/a | self->DataError = pysqlite_DataError; |
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195 | n/a | self->OperationalError = pysqlite_OperationalError; |
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196 | n/a | self->IntegrityError = pysqlite_IntegrityError; |
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197 | n/a | self->InternalError = pysqlite_InternalError; |
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198 | n/a | self->ProgrammingError = pysqlite_ProgrammingError; |
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199 | n/a | self->NotSupportedError = pysqlite_NotSupportedError; |
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200 | n/a | |
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201 | n/a | return 0; |
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202 | n/a | } |
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203 | n/a | |
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204 | n/a | /* action in (ACTION_RESET, ACTION_FINALIZE) */ |
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205 | n/a | void pysqlite_do_all_statements(pysqlite_Connection* self, int action, int reset_cursors) |
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206 | n/a | { |
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207 | n/a | int i; |
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208 | n/a | PyObject* weakref; |
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209 | n/a | PyObject* statement; |
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210 | n/a | pysqlite_Cursor* cursor; |
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211 | n/a | |
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212 | n/a | for (i = 0; i < PyList_Size(self->statements); i++) { |
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213 | n/a | weakref = PyList_GetItem(self->statements, i); |
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214 | n/a | statement = PyWeakref_GetObject(weakref); |
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215 | n/a | if (statement != Py_None) { |
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216 | n/a | Py_INCREF(statement); |
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217 | n/a | if (action == ACTION_RESET) { |
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218 | n/a | (void)pysqlite_statement_reset((pysqlite_Statement*)statement); |
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219 | n/a | } else { |
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220 | n/a | (void)pysqlite_statement_finalize((pysqlite_Statement*)statement); |
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221 | n/a | } |
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222 | n/a | Py_DECREF(statement); |
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223 | n/a | } |
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224 | n/a | } |
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225 | n/a | |
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226 | n/a | if (reset_cursors) { |
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227 | n/a | for (i = 0; i < PyList_Size(self->cursors); i++) { |
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228 | n/a | weakref = PyList_GetItem(self->cursors, i); |
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229 | n/a | cursor = (pysqlite_Cursor*)PyWeakref_GetObject(weakref); |
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230 | n/a | if ((PyObject*)cursor != Py_None) { |
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231 | n/a | cursor->reset = 1; |
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232 | n/a | } |
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233 | n/a | } |
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234 | n/a | } |
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235 | n/a | } |
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236 | n/a | |
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237 | n/a | void pysqlite_connection_dealloc(pysqlite_Connection* self) |
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238 | n/a | { |
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239 | n/a | Py_XDECREF(self->statement_cache); |
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240 | n/a | |
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241 | n/a | /* Clean up if user has not called .close() explicitly. */ |
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242 | n/a | if (self->db) { |
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243 | n/a | Py_BEGIN_ALLOW_THREADS |
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244 | n/a | sqlite3_close(self->db); |
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245 | n/a | Py_END_ALLOW_THREADS |
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246 | n/a | } |
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247 | n/a | |
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248 | n/a | Py_XDECREF(self->isolation_level); |
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249 | n/a | Py_XDECREF(self->function_pinboard); |
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250 | n/a | Py_XDECREF(self->row_factory); |
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251 | n/a | Py_XDECREF(self->text_factory); |
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252 | n/a | Py_XDECREF(self->collations); |
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253 | n/a | Py_XDECREF(self->statements); |
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254 | n/a | Py_XDECREF(self->cursors); |
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255 | n/a | |
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256 | n/a | Py_TYPE(self)->tp_free((PyObject*)self); |
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257 | n/a | } |
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258 | n/a | |
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259 | n/a | /* |
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260 | n/a | * Registers a cursor with the connection. |
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261 | n/a | * |
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262 | n/a | * 0 => error; 1 => ok |
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263 | n/a | */ |
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264 | n/a | int pysqlite_connection_register_cursor(pysqlite_Connection* connection, PyObject* cursor) |
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265 | n/a | { |
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266 | n/a | PyObject* weakref; |
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267 | n/a | |
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268 | n/a | weakref = PyWeakref_NewRef((PyObject*)cursor, NULL); |
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269 | n/a | if (!weakref) { |
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270 | n/a | goto error; |
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271 | n/a | } |
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272 | n/a | |
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273 | n/a | if (PyList_Append(connection->cursors, weakref) != 0) { |
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274 | n/a | Py_CLEAR(weakref); |
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275 | n/a | goto error; |
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276 | n/a | } |
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277 | n/a | |
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278 | n/a | Py_DECREF(weakref); |
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279 | n/a | |
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280 | n/a | return 1; |
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281 | n/a | error: |
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282 | n/a | return 0; |
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283 | n/a | } |
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284 | n/a | |
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285 | n/a | PyObject* pysqlite_connection_cursor(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
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286 | n/a | { |
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287 | n/a | static char *kwlist[] = {"factory", NULL}; |
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288 | n/a | PyObject* factory = NULL; |
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289 | n/a | PyObject* cursor; |
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290 | n/a | |
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291 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O", kwlist, |
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292 | n/a | &factory)) { |
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293 | n/a | return NULL; |
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294 | n/a | } |
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295 | n/a | |
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296 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
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297 | n/a | return NULL; |
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298 | n/a | } |
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299 | n/a | |
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300 | n/a | if (factory == NULL) { |
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301 | n/a | factory = (PyObject*)&pysqlite_CursorType; |
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302 | n/a | } |
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303 | n/a | |
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304 | n/a | cursor = PyObject_CallFunctionObjArgs(factory, (PyObject *)self, NULL); |
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305 | n/a | if (cursor == NULL) |
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306 | n/a | return NULL; |
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307 | n/a | if (!PyObject_TypeCheck(cursor, &pysqlite_CursorType)) { |
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308 | n/a | PyErr_Format(PyExc_TypeError, |
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309 | n/a | "factory must return a cursor, not %.100s", |
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310 | n/a | Py_TYPE(cursor)->tp_name); |
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311 | n/a | Py_DECREF(cursor); |
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312 | n/a | return NULL; |
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313 | n/a | } |
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314 | n/a | |
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315 | n/a | _pysqlite_drop_unused_cursor_references(self); |
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316 | n/a | |
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317 | n/a | if (cursor && self->row_factory != Py_None) { |
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318 | n/a | Py_INCREF(self->row_factory); |
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319 | n/a | Py_XSETREF(((pysqlite_Cursor *)cursor)->row_factory, self->row_factory); |
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320 | n/a | } |
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321 | n/a | |
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322 | n/a | return cursor; |
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323 | n/a | } |
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324 | n/a | |
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325 | n/a | PyObject* pysqlite_connection_close(pysqlite_Connection* self, PyObject* args) |
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326 | n/a | { |
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327 | n/a | int rc; |
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328 | n/a | |
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329 | n/a | if (!pysqlite_check_thread(self)) { |
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330 | n/a | return NULL; |
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331 | n/a | } |
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332 | n/a | |
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333 | n/a | pysqlite_do_all_statements(self, ACTION_FINALIZE, 1); |
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334 | n/a | |
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335 | n/a | if (self->db) { |
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336 | n/a | Py_BEGIN_ALLOW_THREADS |
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337 | n/a | rc = sqlite3_close(self->db); |
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338 | n/a | Py_END_ALLOW_THREADS |
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339 | n/a | |
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340 | n/a | if (rc != SQLITE_OK) { |
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341 | n/a | _pysqlite_seterror(self->db, NULL); |
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342 | n/a | return NULL; |
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343 | n/a | } else { |
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344 | n/a | self->db = NULL; |
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345 | n/a | } |
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346 | n/a | } |
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347 | n/a | |
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348 | n/a | Py_RETURN_NONE; |
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349 | n/a | } |
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350 | n/a | |
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351 | n/a | /* |
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352 | n/a | * Checks if a connection object is usable (i. e. not closed). |
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353 | n/a | * |
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354 | n/a | * 0 => error; 1 => ok |
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355 | n/a | */ |
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356 | n/a | int pysqlite_check_connection(pysqlite_Connection* con) |
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357 | n/a | { |
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358 | n/a | if (!con->initialized) { |
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359 | n/a | PyErr_SetString(pysqlite_ProgrammingError, "Base Connection.__init__ not called."); |
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360 | n/a | return 0; |
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361 | n/a | } |
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362 | n/a | |
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363 | n/a | if (!con->db) { |
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364 | n/a | PyErr_SetString(pysqlite_ProgrammingError, "Cannot operate on a closed database."); |
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365 | n/a | return 0; |
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366 | n/a | } else { |
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367 | n/a | return 1; |
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368 | n/a | } |
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369 | n/a | } |
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370 | n/a | |
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371 | n/a | PyObject* _pysqlite_connection_begin(pysqlite_Connection* self) |
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372 | n/a | { |
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373 | n/a | int rc; |
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374 | n/a | const char* tail; |
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375 | n/a | sqlite3_stmt* statement; |
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376 | n/a | |
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377 | n/a | Py_BEGIN_ALLOW_THREADS |
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378 | n/a | rc = sqlite3_prepare(self->db, self->begin_statement, -1, &statement, &tail); |
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379 | n/a | Py_END_ALLOW_THREADS |
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380 | n/a | |
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381 | n/a | if (rc != SQLITE_OK) { |
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382 | n/a | _pysqlite_seterror(self->db, statement); |
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383 | n/a | goto error; |
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384 | n/a | } |
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385 | n/a | |
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386 | n/a | rc = pysqlite_step(statement, self); |
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387 | n/a | if (rc != SQLITE_DONE) { |
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388 | n/a | _pysqlite_seterror(self->db, statement); |
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389 | n/a | } |
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390 | n/a | |
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391 | n/a | Py_BEGIN_ALLOW_THREADS |
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392 | n/a | rc = sqlite3_finalize(statement); |
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393 | n/a | Py_END_ALLOW_THREADS |
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394 | n/a | |
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395 | n/a | if (rc != SQLITE_OK && !PyErr_Occurred()) { |
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396 | n/a | _pysqlite_seterror(self->db, NULL); |
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397 | n/a | } |
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398 | n/a | |
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399 | n/a | error: |
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400 | n/a | if (PyErr_Occurred()) { |
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401 | n/a | return NULL; |
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402 | n/a | } else { |
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403 | n/a | Py_RETURN_NONE; |
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404 | n/a | } |
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405 | n/a | } |
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406 | n/a | |
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407 | n/a | PyObject* pysqlite_connection_commit(pysqlite_Connection* self, PyObject* args) |
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408 | n/a | { |
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409 | n/a | int rc; |
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410 | n/a | const char* tail; |
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411 | n/a | sqlite3_stmt* statement; |
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412 | n/a | |
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413 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
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414 | n/a | return NULL; |
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415 | n/a | } |
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416 | n/a | |
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417 | n/a | if (!sqlite3_get_autocommit(self->db)) { |
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418 | n/a | |
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419 | n/a | Py_BEGIN_ALLOW_THREADS |
---|
420 | n/a | rc = sqlite3_prepare(self->db, "COMMIT", -1, &statement, &tail); |
---|
421 | n/a | Py_END_ALLOW_THREADS |
---|
422 | n/a | if (rc != SQLITE_OK) { |
---|
423 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
424 | n/a | goto error; |
---|
425 | n/a | } |
---|
426 | n/a | |
---|
427 | n/a | rc = pysqlite_step(statement, self); |
---|
428 | n/a | if (rc != SQLITE_DONE) { |
---|
429 | n/a | _pysqlite_seterror(self->db, statement); |
---|
430 | n/a | } |
---|
431 | n/a | |
---|
432 | n/a | Py_BEGIN_ALLOW_THREADS |
---|
433 | n/a | rc = sqlite3_finalize(statement); |
---|
434 | n/a | Py_END_ALLOW_THREADS |
---|
435 | n/a | if (rc != SQLITE_OK && !PyErr_Occurred()) { |
---|
436 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
437 | n/a | } |
---|
438 | n/a | |
---|
439 | n/a | } |
---|
440 | n/a | |
---|
441 | n/a | error: |
---|
442 | n/a | if (PyErr_Occurred()) { |
---|
443 | n/a | return NULL; |
---|
444 | n/a | } else { |
---|
445 | n/a | Py_RETURN_NONE; |
---|
446 | n/a | } |
---|
447 | n/a | } |
---|
448 | n/a | |
---|
449 | n/a | PyObject* pysqlite_connection_rollback(pysqlite_Connection* self, PyObject* args) |
---|
450 | n/a | { |
---|
451 | n/a | int rc; |
---|
452 | n/a | const char* tail; |
---|
453 | n/a | sqlite3_stmt* statement; |
---|
454 | n/a | |
---|
455 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
456 | n/a | return NULL; |
---|
457 | n/a | } |
---|
458 | n/a | |
---|
459 | n/a | if (!sqlite3_get_autocommit(self->db)) { |
---|
460 | n/a | pysqlite_do_all_statements(self, ACTION_RESET, 1); |
---|
461 | n/a | |
---|
462 | n/a | Py_BEGIN_ALLOW_THREADS |
---|
463 | n/a | rc = sqlite3_prepare(self->db, "ROLLBACK", -1, &statement, &tail); |
---|
464 | n/a | Py_END_ALLOW_THREADS |
---|
465 | n/a | if (rc != SQLITE_OK) { |
---|
466 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
467 | n/a | goto error; |
---|
468 | n/a | } |
---|
469 | n/a | |
---|
470 | n/a | rc = pysqlite_step(statement, self); |
---|
471 | n/a | if (rc != SQLITE_DONE) { |
---|
472 | n/a | _pysqlite_seterror(self->db, statement); |
---|
473 | n/a | } |
---|
474 | n/a | |
---|
475 | n/a | Py_BEGIN_ALLOW_THREADS |
---|
476 | n/a | rc = sqlite3_finalize(statement); |
---|
477 | n/a | Py_END_ALLOW_THREADS |
---|
478 | n/a | if (rc != SQLITE_OK && !PyErr_Occurred()) { |
---|
479 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
480 | n/a | } |
---|
481 | n/a | |
---|
482 | n/a | } |
---|
483 | n/a | |
---|
484 | n/a | error: |
---|
485 | n/a | if (PyErr_Occurred()) { |
---|
486 | n/a | return NULL; |
---|
487 | n/a | } else { |
---|
488 | n/a | Py_RETURN_NONE; |
---|
489 | n/a | } |
---|
490 | n/a | } |
---|
491 | n/a | |
---|
492 | n/a | static int |
---|
493 | n/a | _pysqlite_set_result(sqlite3_context* context, PyObject* py_val) |
---|
494 | n/a | { |
---|
495 | n/a | if (py_val == Py_None) { |
---|
496 | n/a | sqlite3_result_null(context); |
---|
497 | n/a | } else if (PyLong_Check(py_val)) { |
---|
498 | n/a | sqlite_int64 value = _pysqlite_long_as_int64(py_val); |
---|
499 | n/a | if (value == -1 && PyErr_Occurred()) |
---|
500 | n/a | return -1; |
---|
501 | n/a | sqlite3_result_int64(context, value); |
---|
502 | n/a | } else if (PyFloat_Check(py_val)) { |
---|
503 | n/a | sqlite3_result_double(context, PyFloat_AsDouble(py_val)); |
---|
504 | n/a | } else if (PyUnicode_Check(py_val)) { |
---|
505 | n/a | const char *str = PyUnicode_AsUTF8(py_val); |
---|
506 | n/a | if (str == NULL) |
---|
507 | n/a | return -1; |
---|
508 | n/a | sqlite3_result_text(context, str, -1, SQLITE_TRANSIENT); |
---|
509 | n/a | } else if (PyObject_CheckBuffer(py_val)) { |
---|
510 | n/a | Py_buffer view; |
---|
511 | n/a | if (PyObject_GetBuffer(py_val, &view, PyBUF_SIMPLE) != 0) { |
---|
512 | n/a | PyErr_SetString(PyExc_ValueError, |
---|
513 | n/a | "could not convert BLOB to buffer"); |
---|
514 | n/a | return -1; |
---|
515 | n/a | } |
---|
516 | n/a | if (view.len > INT_MAX) { |
---|
517 | n/a | PyErr_SetString(PyExc_OverflowError, |
---|
518 | n/a | "BLOB longer than INT_MAX bytes"); |
---|
519 | n/a | PyBuffer_Release(&view); |
---|
520 | n/a | return -1; |
---|
521 | n/a | } |
---|
522 | n/a | sqlite3_result_blob(context, view.buf, (int)view.len, SQLITE_TRANSIENT); |
---|
523 | n/a | PyBuffer_Release(&view); |
---|
524 | n/a | } else { |
---|
525 | n/a | return -1; |
---|
526 | n/a | } |
---|
527 | n/a | return 0; |
---|
528 | n/a | } |
---|
529 | n/a | |
---|
530 | n/a | PyObject* _pysqlite_build_py_params(sqlite3_context *context, int argc, sqlite3_value** argv) |
---|
531 | n/a | { |
---|
532 | n/a | PyObject* args; |
---|
533 | n/a | int i; |
---|
534 | n/a | sqlite3_value* cur_value; |
---|
535 | n/a | PyObject* cur_py_value; |
---|
536 | n/a | const char* val_str; |
---|
537 | n/a | Py_ssize_t buflen; |
---|
538 | n/a | |
---|
539 | n/a | args = PyTuple_New(argc); |
---|
540 | n/a | if (!args) { |
---|
541 | n/a | return NULL; |
---|
542 | n/a | } |
---|
543 | n/a | |
---|
544 | n/a | for (i = 0; i < argc; i++) { |
---|
545 | n/a | cur_value = argv[i]; |
---|
546 | n/a | switch (sqlite3_value_type(argv[i])) { |
---|
547 | n/a | case SQLITE_INTEGER: |
---|
548 | n/a | cur_py_value = _pysqlite_long_from_int64(sqlite3_value_int64(cur_value)); |
---|
549 | n/a | break; |
---|
550 | n/a | case SQLITE_FLOAT: |
---|
551 | n/a | cur_py_value = PyFloat_FromDouble(sqlite3_value_double(cur_value)); |
---|
552 | n/a | break; |
---|
553 | n/a | case SQLITE_TEXT: |
---|
554 | n/a | val_str = (const char*)sqlite3_value_text(cur_value); |
---|
555 | n/a | cur_py_value = PyUnicode_FromString(val_str); |
---|
556 | n/a | /* TODO: have a way to show errors here */ |
---|
557 | n/a | if (!cur_py_value) { |
---|
558 | n/a | PyErr_Clear(); |
---|
559 | n/a | Py_INCREF(Py_None); |
---|
560 | n/a | cur_py_value = Py_None; |
---|
561 | n/a | } |
---|
562 | n/a | break; |
---|
563 | n/a | case SQLITE_BLOB: |
---|
564 | n/a | buflen = sqlite3_value_bytes(cur_value); |
---|
565 | n/a | cur_py_value = PyBytes_FromStringAndSize( |
---|
566 | n/a | sqlite3_value_blob(cur_value), buflen); |
---|
567 | n/a | break; |
---|
568 | n/a | case SQLITE_NULL: |
---|
569 | n/a | default: |
---|
570 | n/a | Py_INCREF(Py_None); |
---|
571 | n/a | cur_py_value = Py_None; |
---|
572 | n/a | } |
---|
573 | n/a | |
---|
574 | n/a | if (!cur_py_value) { |
---|
575 | n/a | Py_DECREF(args); |
---|
576 | n/a | return NULL; |
---|
577 | n/a | } |
---|
578 | n/a | |
---|
579 | n/a | PyTuple_SetItem(args, i, cur_py_value); |
---|
580 | n/a | |
---|
581 | n/a | } |
---|
582 | n/a | |
---|
583 | n/a | return args; |
---|
584 | n/a | } |
---|
585 | n/a | |
---|
586 | n/a | void _pysqlite_func_callback(sqlite3_context* context, int argc, sqlite3_value** argv) |
---|
587 | n/a | { |
---|
588 | n/a | PyObject* args; |
---|
589 | n/a | PyObject* py_func; |
---|
590 | n/a | PyObject* py_retval = NULL; |
---|
591 | n/a | int ok; |
---|
592 | n/a | |
---|
593 | n/a | #ifdef WITH_THREAD |
---|
594 | n/a | PyGILState_STATE threadstate; |
---|
595 | n/a | |
---|
596 | n/a | threadstate = PyGILState_Ensure(); |
---|
597 | n/a | #endif |
---|
598 | n/a | |
---|
599 | n/a | py_func = (PyObject*)sqlite3_user_data(context); |
---|
600 | n/a | |
---|
601 | n/a | args = _pysqlite_build_py_params(context, argc, argv); |
---|
602 | n/a | if (args) { |
---|
603 | n/a | py_retval = PyObject_CallObject(py_func, args); |
---|
604 | n/a | Py_DECREF(args); |
---|
605 | n/a | } |
---|
606 | n/a | |
---|
607 | n/a | ok = 0; |
---|
608 | n/a | if (py_retval) { |
---|
609 | n/a | ok = _pysqlite_set_result(context, py_retval) == 0; |
---|
610 | n/a | Py_DECREF(py_retval); |
---|
611 | n/a | } |
---|
612 | n/a | if (!ok) { |
---|
613 | n/a | if (_enable_callback_tracebacks) { |
---|
614 | n/a | PyErr_Print(); |
---|
615 | n/a | } else { |
---|
616 | n/a | PyErr_Clear(); |
---|
617 | n/a | } |
---|
618 | n/a | _sqlite3_result_error(context, "user-defined function raised exception", -1); |
---|
619 | n/a | } |
---|
620 | n/a | |
---|
621 | n/a | #ifdef WITH_THREAD |
---|
622 | n/a | PyGILState_Release(threadstate); |
---|
623 | n/a | #endif |
---|
624 | n/a | } |
---|
625 | n/a | |
---|
626 | n/a | static void _pysqlite_step_callback(sqlite3_context *context, int argc, sqlite3_value** params) |
---|
627 | n/a | { |
---|
628 | n/a | PyObject* args; |
---|
629 | n/a | PyObject* function_result = NULL; |
---|
630 | n/a | PyObject* aggregate_class; |
---|
631 | n/a | PyObject** aggregate_instance; |
---|
632 | n/a | PyObject* stepmethod = NULL; |
---|
633 | n/a | |
---|
634 | n/a | #ifdef WITH_THREAD |
---|
635 | n/a | PyGILState_STATE threadstate; |
---|
636 | n/a | |
---|
637 | n/a | threadstate = PyGILState_Ensure(); |
---|
638 | n/a | #endif |
---|
639 | n/a | |
---|
640 | n/a | aggregate_class = (PyObject*)sqlite3_user_data(context); |
---|
641 | n/a | |
---|
642 | n/a | aggregate_instance = (PyObject**)sqlite3_aggregate_context(context, sizeof(PyObject*)); |
---|
643 | n/a | |
---|
644 | n/a | if (*aggregate_instance == 0) { |
---|
645 | n/a | *aggregate_instance = _PyObject_CallNoArg(aggregate_class); |
---|
646 | n/a | |
---|
647 | n/a | if (PyErr_Occurred()) { |
---|
648 | n/a | *aggregate_instance = 0; |
---|
649 | n/a | if (_enable_callback_tracebacks) { |
---|
650 | n/a | PyErr_Print(); |
---|
651 | n/a | } else { |
---|
652 | n/a | PyErr_Clear(); |
---|
653 | n/a | } |
---|
654 | n/a | _sqlite3_result_error(context, "user-defined aggregate's '__init__' method raised error", -1); |
---|
655 | n/a | goto error; |
---|
656 | n/a | } |
---|
657 | n/a | } |
---|
658 | n/a | |
---|
659 | n/a | stepmethod = PyObject_GetAttrString(*aggregate_instance, "step"); |
---|
660 | n/a | if (!stepmethod) { |
---|
661 | n/a | goto error; |
---|
662 | n/a | } |
---|
663 | n/a | |
---|
664 | n/a | args = _pysqlite_build_py_params(context, argc, params); |
---|
665 | n/a | if (!args) { |
---|
666 | n/a | goto error; |
---|
667 | n/a | } |
---|
668 | n/a | |
---|
669 | n/a | function_result = PyObject_CallObject(stepmethod, args); |
---|
670 | n/a | Py_DECREF(args); |
---|
671 | n/a | |
---|
672 | n/a | if (!function_result) { |
---|
673 | n/a | if (_enable_callback_tracebacks) { |
---|
674 | n/a | PyErr_Print(); |
---|
675 | n/a | } else { |
---|
676 | n/a | PyErr_Clear(); |
---|
677 | n/a | } |
---|
678 | n/a | _sqlite3_result_error(context, "user-defined aggregate's 'step' method raised error", -1); |
---|
679 | n/a | } |
---|
680 | n/a | |
---|
681 | n/a | error: |
---|
682 | n/a | Py_XDECREF(stepmethod); |
---|
683 | n/a | Py_XDECREF(function_result); |
---|
684 | n/a | |
---|
685 | n/a | #ifdef WITH_THREAD |
---|
686 | n/a | PyGILState_Release(threadstate); |
---|
687 | n/a | #endif |
---|
688 | n/a | } |
---|
689 | n/a | |
---|
690 | n/a | void _pysqlite_final_callback(sqlite3_context* context) |
---|
691 | n/a | { |
---|
692 | n/a | PyObject* function_result; |
---|
693 | n/a | PyObject** aggregate_instance; |
---|
694 | n/a | _Py_IDENTIFIER(finalize); |
---|
695 | n/a | int ok; |
---|
696 | n/a | PyObject *exception, *value, *tb; |
---|
697 | n/a | int restore; |
---|
698 | n/a | |
---|
699 | n/a | #ifdef WITH_THREAD |
---|
700 | n/a | PyGILState_STATE threadstate; |
---|
701 | n/a | |
---|
702 | n/a | threadstate = PyGILState_Ensure(); |
---|
703 | n/a | #endif |
---|
704 | n/a | |
---|
705 | n/a | aggregate_instance = (PyObject**)sqlite3_aggregate_context(context, sizeof(PyObject*)); |
---|
706 | n/a | if (!*aggregate_instance) { |
---|
707 | n/a | /* this branch is executed if there was an exception in the aggregate's |
---|
708 | n/a | * __init__ */ |
---|
709 | n/a | |
---|
710 | n/a | goto error; |
---|
711 | n/a | } |
---|
712 | n/a | |
---|
713 | n/a | /* Keep the exception (if any) of the last call to step() */ |
---|
714 | n/a | PyErr_Fetch(&exception, &value, &tb); |
---|
715 | n/a | restore = 1; |
---|
716 | n/a | |
---|
717 | n/a | function_result = _PyObject_CallMethodId(*aggregate_instance, &PyId_finalize, NULL); |
---|
718 | n/a | |
---|
719 | n/a | Py_DECREF(*aggregate_instance); |
---|
720 | n/a | |
---|
721 | n/a | ok = 0; |
---|
722 | n/a | if (function_result) { |
---|
723 | n/a | ok = _pysqlite_set_result(context, function_result) == 0; |
---|
724 | n/a | Py_DECREF(function_result); |
---|
725 | n/a | } |
---|
726 | n/a | if (!ok) { |
---|
727 | n/a | if (_enable_callback_tracebacks) { |
---|
728 | n/a | PyErr_Print(); |
---|
729 | n/a | } else { |
---|
730 | n/a | PyErr_Clear(); |
---|
731 | n/a | } |
---|
732 | n/a | _sqlite3_result_error(context, "user-defined aggregate's 'finalize' method raised error", -1); |
---|
733 | n/a | #if SQLITE_VERSION_NUMBER < 3003003 |
---|
734 | n/a | /* with old SQLite versions, _sqlite3_result_error() sets a new Python |
---|
735 | n/a | exception, so don't restore the previous exception */ |
---|
736 | n/a | restore = 0; |
---|
737 | n/a | #endif |
---|
738 | n/a | } |
---|
739 | n/a | |
---|
740 | n/a | if (restore) { |
---|
741 | n/a | /* Restore the exception (if any) of the last call to step(), |
---|
742 | n/a | but clear also the current exception if finalize() failed */ |
---|
743 | n/a | PyErr_Restore(exception, value, tb); |
---|
744 | n/a | } |
---|
745 | n/a | |
---|
746 | n/a | error: |
---|
747 | n/a | #ifdef WITH_THREAD |
---|
748 | n/a | PyGILState_Release(threadstate); |
---|
749 | n/a | #endif |
---|
750 | n/a | /* explicit return to avoid a compilation error if WITH_THREAD |
---|
751 | n/a | is not defined */ |
---|
752 | n/a | return; |
---|
753 | n/a | } |
---|
754 | n/a | |
---|
755 | n/a | static void _pysqlite_drop_unused_statement_references(pysqlite_Connection* self) |
---|
756 | n/a | { |
---|
757 | n/a | PyObject* new_list; |
---|
758 | n/a | PyObject* weakref; |
---|
759 | n/a | int i; |
---|
760 | n/a | |
---|
761 | n/a | /* we only need to do this once in a while */ |
---|
762 | n/a | if (self->created_statements++ < 200) { |
---|
763 | n/a | return; |
---|
764 | n/a | } |
---|
765 | n/a | |
---|
766 | n/a | self->created_statements = 0; |
---|
767 | n/a | |
---|
768 | n/a | new_list = PyList_New(0); |
---|
769 | n/a | if (!new_list) { |
---|
770 | n/a | return; |
---|
771 | n/a | } |
---|
772 | n/a | |
---|
773 | n/a | for (i = 0; i < PyList_Size(self->statements); i++) { |
---|
774 | n/a | weakref = PyList_GetItem(self->statements, i); |
---|
775 | n/a | if (PyWeakref_GetObject(weakref) != Py_None) { |
---|
776 | n/a | if (PyList_Append(new_list, weakref) != 0) { |
---|
777 | n/a | Py_DECREF(new_list); |
---|
778 | n/a | return; |
---|
779 | n/a | } |
---|
780 | n/a | } |
---|
781 | n/a | } |
---|
782 | n/a | |
---|
783 | n/a | Py_SETREF(self->statements, new_list); |
---|
784 | n/a | } |
---|
785 | n/a | |
---|
786 | n/a | static void _pysqlite_drop_unused_cursor_references(pysqlite_Connection* self) |
---|
787 | n/a | { |
---|
788 | n/a | PyObject* new_list; |
---|
789 | n/a | PyObject* weakref; |
---|
790 | n/a | int i; |
---|
791 | n/a | |
---|
792 | n/a | /* we only need to do this once in a while */ |
---|
793 | n/a | if (self->created_cursors++ < 200) { |
---|
794 | n/a | return; |
---|
795 | n/a | } |
---|
796 | n/a | |
---|
797 | n/a | self->created_cursors = 0; |
---|
798 | n/a | |
---|
799 | n/a | new_list = PyList_New(0); |
---|
800 | n/a | if (!new_list) { |
---|
801 | n/a | return; |
---|
802 | n/a | } |
---|
803 | n/a | |
---|
804 | n/a | for (i = 0; i < PyList_Size(self->cursors); i++) { |
---|
805 | n/a | weakref = PyList_GetItem(self->cursors, i); |
---|
806 | n/a | if (PyWeakref_GetObject(weakref) != Py_None) { |
---|
807 | n/a | if (PyList_Append(new_list, weakref) != 0) { |
---|
808 | n/a | Py_DECREF(new_list); |
---|
809 | n/a | return; |
---|
810 | n/a | } |
---|
811 | n/a | } |
---|
812 | n/a | } |
---|
813 | n/a | |
---|
814 | n/a | Py_SETREF(self->cursors, new_list); |
---|
815 | n/a | } |
---|
816 | n/a | |
---|
817 | n/a | PyObject* pysqlite_connection_create_function(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
818 | n/a | { |
---|
819 | n/a | static char *kwlist[] = {"name", "narg", "func", NULL, NULL}; |
---|
820 | n/a | |
---|
821 | n/a | PyObject* func; |
---|
822 | n/a | char* name; |
---|
823 | n/a | int narg; |
---|
824 | n/a | int rc; |
---|
825 | n/a | |
---|
826 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
827 | n/a | return NULL; |
---|
828 | n/a | } |
---|
829 | n/a | |
---|
830 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "siO", kwlist, |
---|
831 | n/a | &name, &narg, &func)) |
---|
832 | n/a | { |
---|
833 | n/a | return NULL; |
---|
834 | n/a | } |
---|
835 | n/a | |
---|
836 | n/a | rc = sqlite3_create_function(self->db, name, narg, SQLITE_UTF8, (void*)func, _pysqlite_func_callback, NULL, NULL); |
---|
837 | n/a | |
---|
838 | n/a | if (rc != SQLITE_OK) { |
---|
839 | n/a | /* Workaround for SQLite bug: no error code or string is available here */ |
---|
840 | n/a | PyErr_SetString(pysqlite_OperationalError, "Error creating function"); |
---|
841 | n/a | return NULL; |
---|
842 | n/a | } else { |
---|
843 | n/a | if (PyDict_SetItem(self->function_pinboard, func, Py_None) == -1) |
---|
844 | n/a | return NULL; |
---|
845 | n/a | |
---|
846 | n/a | Py_RETURN_NONE; |
---|
847 | n/a | } |
---|
848 | n/a | } |
---|
849 | n/a | |
---|
850 | n/a | PyObject* pysqlite_connection_create_aggregate(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
851 | n/a | { |
---|
852 | n/a | PyObject* aggregate_class; |
---|
853 | n/a | |
---|
854 | n/a | int n_arg; |
---|
855 | n/a | char* name; |
---|
856 | n/a | static char *kwlist[] = { "name", "n_arg", "aggregate_class", NULL }; |
---|
857 | n/a | int rc; |
---|
858 | n/a | |
---|
859 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
860 | n/a | return NULL; |
---|
861 | n/a | } |
---|
862 | n/a | |
---|
863 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "siO:create_aggregate", |
---|
864 | n/a | kwlist, &name, &n_arg, &aggregate_class)) { |
---|
865 | n/a | return NULL; |
---|
866 | n/a | } |
---|
867 | n/a | |
---|
868 | n/a | rc = sqlite3_create_function(self->db, name, n_arg, SQLITE_UTF8, (void*)aggregate_class, 0, &_pysqlite_step_callback, &_pysqlite_final_callback); |
---|
869 | n/a | if (rc != SQLITE_OK) { |
---|
870 | n/a | /* Workaround for SQLite bug: no error code or string is available here */ |
---|
871 | n/a | PyErr_SetString(pysqlite_OperationalError, "Error creating aggregate"); |
---|
872 | n/a | return NULL; |
---|
873 | n/a | } else { |
---|
874 | n/a | if (PyDict_SetItem(self->function_pinboard, aggregate_class, Py_None) == -1) |
---|
875 | n/a | return NULL; |
---|
876 | n/a | |
---|
877 | n/a | Py_RETURN_NONE; |
---|
878 | n/a | } |
---|
879 | n/a | } |
---|
880 | n/a | |
---|
881 | n/a | static int _authorizer_callback(void* user_arg, int action, const char* arg1, const char* arg2 , const char* dbname, const char* access_attempt_source) |
---|
882 | n/a | { |
---|
883 | n/a | PyObject *ret; |
---|
884 | n/a | int rc; |
---|
885 | n/a | #ifdef WITH_THREAD |
---|
886 | n/a | PyGILState_STATE gilstate; |
---|
887 | n/a | |
---|
888 | n/a | gilstate = PyGILState_Ensure(); |
---|
889 | n/a | #endif |
---|
890 | n/a | |
---|
891 | n/a | ret = PyObject_CallFunction((PyObject*)user_arg, "issss", action, arg1, arg2, dbname, access_attempt_source); |
---|
892 | n/a | |
---|
893 | n/a | if (ret == NULL) { |
---|
894 | n/a | if (_enable_callback_tracebacks) |
---|
895 | n/a | PyErr_Print(); |
---|
896 | n/a | else |
---|
897 | n/a | PyErr_Clear(); |
---|
898 | n/a | |
---|
899 | n/a | rc = SQLITE_DENY; |
---|
900 | n/a | } |
---|
901 | n/a | else { |
---|
902 | n/a | if (PyLong_Check(ret)) { |
---|
903 | n/a | rc = _PyLong_AsInt(ret); |
---|
904 | n/a | if (rc == -1 && PyErr_Occurred()) { |
---|
905 | n/a | if (_enable_callback_tracebacks) |
---|
906 | n/a | PyErr_Print(); |
---|
907 | n/a | else |
---|
908 | n/a | PyErr_Clear(); |
---|
909 | n/a | rc = SQLITE_DENY; |
---|
910 | n/a | } |
---|
911 | n/a | } |
---|
912 | n/a | else { |
---|
913 | n/a | rc = SQLITE_DENY; |
---|
914 | n/a | } |
---|
915 | n/a | Py_DECREF(ret); |
---|
916 | n/a | } |
---|
917 | n/a | |
---|
918 | n/a | #ifdef WITH_THREAD |
---|
919 | n/a | PyGILState_Release(gilstate); |
---|
920 | n/a | #endif |
---|
921 | n/a | return rc; |
---|
922 | n/a | } |
---|
923 | n/a | |
---|
924 | n/a | static int _progress_handler(void* user_arg) |
---|
925 | n/a | { |
---|
926 | n/a | int rc; |
---|
927 | n/a | PyObject *ret; |
---|
928 | n/a | #ifdef WITH_THREAD |
---|
929 | n/a | PyGILState_STATE gilstate; |
---|
930 | n/a | |
---|
931 | n/a | gilstate = PyGILState_Ensure(); |
---|
932 | n/a | #endif |
---|
933 | n/a | ret = _PyObject_CallNoArg((PyObject*)user_arg); |
---|
934 | n/a | |
---|
935 | n/a | if (!ret) { |
---|
936 | n/a | if (_enable_callback_tracebacks) { |
---|
937 | n/a | PyErr_Print(); |
---|
938 | n/a | } else { |
---|
939 | n/a | PyErr_Clear(); |
---|
940 | n/a | } |
---|
941 | n/a | |
---|
942 | n/a | /* abort query if error occurred */ |
---|
943 | n/a | rc = 1; |
---|
944 | n/a | } else { |
---|
945 | n/a | rc = (int)PyObject_IsTrue(ret); |
---|
946 | n/a | Py_DECREF(ret); |
---|
947 | n/a | } |
---|
948 | n/a | |
---|
949 | n/a | #ifdef WITH_THREAD |
---|
950 | n/a | PyGILState_Release(gilstate); |
---|
951 | n/a | #endif |
---|
952 | n/a | return rc; |
---|
953 | n/a | } |
---|
954 | n/a | |
---|
955 | n/a | static void _trace_callback(void* user_arg, const char* statement_string) |
---|
956 | n/a | { |
---|
957 | n/a | PyObject *py_statement = NULL; |
---|
958 | n/a | PyObject *ret = NULL; |
---|
959 | n/a | |
---|
960 | n/a | #ifdef WITH_THREAD |
---|
961 | n/a | PyGILState_STATE gilstate; |
---|
962 | n/a | |
---|
963 | n/a | gilstate = PyGILState_Ensure(); |
---|
964 | n/a | #endif |
---|
965 | n/a | py_statement = PyUnicode_DecodeUTF8(statement_string, |
---|
966 | n/a | strlen(statement_string), "replace"); |
---|
967 | n/a | if (py_statement) { |
---|
968 | n/a | ret = PyObject_CallFunctionObjArgs((PyObject*)user_arg, py_statement, NULL); |
---|
969 | n/a | Py_DECREF(py_statement); |
---|
970 | n/a | } |
---|
971 | n/a | |
---|
972 | n/a | if (ret) { |
---|
973 | n/a | Py_DECREF(ret); |
---|
974 | n/a | } else { |
---|
975 | n/a | if (_enable_callback_tracebacks) { |
---|
976 | n/a | PyErr_Print(); |
---|
977 | n/a | } else { |
---|
978 | n/a | PyErr_Clear(); |
---|
979 | n/a | } |
---|
980 | n/a | } |
---|
981 | n/a | |
---|
982 | n/a | #ifdef WITH_THREAD |
---|
983 | n/a | PyGILState_Release(gilstate); |
---|
984 | n/a | #endif |
---|
985 | n/a | } |
---|
986 | n/a | |
---|
987 | n/a | static PyObject* pysqlite_connection_set_authorizer(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
988 | n/a | { |
---|
989 | n/a | PyObject* authorizer_cb; |
---|
990 | n/a | |
---|
991 | n/a | static char *kwlist[] = { "authorizer_callback", NULL }; |
---|
992 | n/a | int rc; |
---|
993 | n/a | |
---|
994 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
995 | n/a | return NULL; |
---|
996 | n/a | } |
---|
997 | n/a | |
---|
998 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:set_authorizer", |
---|
999 | n/a | kwlist, &authorizer_cb)) { |
---|
1000 | n/a | return NULL; |
---|
1001 | n/a | } |
---|
1002 | n/a | |
---|
1003 | n/a | rc = sqlite3_set_authorizer(self->db, _authorizer_callback, (void*)authorizer_cb); |
---|
1004 | n/a | |
---|
1005 | n/a | if (rc != SQLITE_OK) { |
---|
1006 | n/a | PyErr_SetString(pysqlite_OperationalError, "Error setting authorizer callback"); |
---|
1007 | n/a | return NULL; |
---|
1008 | n/a | } else { |
---|
1009 | n/a | if (PyDict_SetItem(self->function_pinboard, authorizer_cb, Py_None) == -1) |
---|
1010 | n/a | return NULL; |
---|
1011 | n/a | |
---|
1012 | n/a | Py_RETURN_NONE; |
---|
1013 | n/a | } |
---|
1014 | n/a | } |
---|
1015 | n/a | |
---|
1016 | n/a | static PyObject* pysqlite_connection_set_progress_handler(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
1017 | n/a | { |
---|
1018 | n/a | PyObject* progress_handler; |
---|
1019 | n/a | int n; |
---|
1020 | n/a | |
---|
1021 | n/a | static char *kwlist[] = { "progress_handler", "n", NULL }; |
---|
1022 | n/a | |
---|
1023 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1024 | n/a | return NULL; |
---|
1025 | n/a | } |
---|
1026 | n/a | |
---|
1027 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Oi:set_progress_handler", |
---|
1028 | n/a | kwlist, &progress_handler, &n)) { |
---|
1029 | n/a | return NULL; |
---|
1030 | n/a | } |
---|
1031 | n/a | |
---|
1032 | n/a | if (progress_handler == Py_None) { |
---|
1033 | n/a | /* None clears the progress handler previously set */ |
---|
1034 | n/a | sqlite3_progress_handler(self->db, 0, 0, (void*)0); |
---|
1035 | n/a | } else { |
---|
1036 | n/a | sqlite3_progress_handler(self->db, n, _progress_handler, progress_handler); |
---|
1037 | n/a | if (PyDict_SetItem(self->function_pinboard, progress_handler, Py_None) == -1) |
---|
1038 | n/a | return NULL; |
---|
1039 | n/a | } |
---|
1040 | n/a | |
---|
1041 | n/a | Py_RETURN_NONE; |
---|
1042 | n/a | } |
---|
1043 | n/a | |
---|
1044 | n/a | static PyObject* pysqlite_connection_set_trace_callback(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
1045 | n/a | { |
---|
1046 | n/a | PyObject* trace_callback; |
---|
1047 | n/a | |
---|
1048 | n/a | static char *kwlist[] = { "trace_callback", NULL }; |
---|
1049 | n/a | |
---|
1050 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1051 | n/a | return NULL; |
---|
1052 | n/a | } |
---|
1053 | n/a | |
---|
1054 | n/a | if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:set_trace_callback", |
---|
1055 | n/a | kwlist, &trace_callback)) { |
---|
1056 | n/a | return NULL; |
---|
1057 | n/a | } |
---|
1058 | n/a | |
---|
1059 | n/a | if (trace_callback == Py_None) { |
---|
1060 | n/a | /* None clears the trace callback previously set */ |
---|
1061 | n/a | sqlite3_trace(self->db, 0, (void*)0); |
---|
1062 | n/a | } else { |
---|
1063 | n/a | if (PyDict_SetItem(self->function_pinboard, trace_callback, Py_None) == -1) |
---|
1064 | n/a | return NULL; |
---|
1065 | n/a | sqlite3_trace(self->db, _trace_callback, trace_callback); |
---|
1066 | n/a | } |
---|
1067 | n/a | |
---|
1068 | n/a | Py_RETURN_NONE; |
---|
1069 | n/a | } |
---|
1070 | n/a | |
---|
1071 | n/a | #ifdef HAVE_LOAD_EXTENSION |
---|
1072 | n/a | static PyObject* pysqlite_enable_load_extension(pysqlite_Connection* self, PyObject* args) |
---|
1073 | n/a | { |
---|
1074 | n/a | int rc; |
---|
1075 | n/a | int onoff; |
---|
1076 | n/a | |
---|
1077 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1078 | n/a | return NULL; |
---|
1079 | n/a | } |
---|
1080 | n/a | |
---|
1081 | n/a | if (!PyArg_ParseTuple(args, "i", &onoff)) { |
---|
1082 | n/a | return NULL; |
---|
1083 | n/a | } |
---|
1084 | n/a | |
---|
1085 | n/a | rc = sqlite3_enable_load_extension(self->db, onoff); |
---|
1086 | n/a | |
---|
1087 | n/a | if (rc != SQLITE_OK) { |
---|
1088 | n/a | PyErr_SetString(pysqlite_OperationalError, "Error enabling load extension"); |
---|
1089 | n/a | return NULL; |
---|
1090 | n/a | } else { |
---|
1091 | n/a | Py_RETURN_NONE; |
---|
1092 | n/a | } |
---|
1093 | n/a | } |
---|
1094 | n/a | |
---|
1095 | n/a | static PyObject* pysqlite_load_extension(pysqlite_Connection* self, PyObject* args) |
---|
1096 | n/a | { |
---|
1097 | n/a | int rc; |
---|
1098 | n/a | char* extension_name; |
---|
1099 | n/a | char* errmsg; |
---|
1100 | n/a | |
---|
1101 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1102 | n/a | return NULL; |
---|
1103 | n/a | } |
---|
1104 | n/a | |
---|
1105 | n/a | if (!PyArg_ParseTuple(args, "s", &extension_name)) { |
---|
1106 | n/a | return NULL; |
---|
1107 | n/a | } |
---|
1108 | n/a | |
---|
1109 | n/a | rc = sqlite3_load_extension(self->db, extension_name, 0, &errmsg); |
---|
1110 | n/a | if (rc != 0) { |
---|
1111 | n/a | PyErr_SetString(pysqlite_OperationalError, errmsg); |
---|
1112 | n/a | return NULL; |
---|
1113 | n/a | } else { |
---|
1114 | n/a | Py_RETURN_NONE; |
---|
1115 | n/a | } |
---|
1116 | n/a | } |
---|
1117 | n/a | #endif |
---|
1118 | n/a | |
---|
1119 | n/a | int pysqlite_check_thread(pysqlite_Connection* self) |
---|
1120 | n/a | { |
---|
1121 | n/a | #ifdef WITH_THREAD |
---|
1122 | n/a | if (self->check_same_thread) { |
---|
1123 | n/a | if (PyThread_get_thread_ident() != self->thread_ident) { |
---|
1124 | n/a | PyErr_Format(pysqlite_ProgrammingError, |
---|
1125 | n/a | "SQLite objects created in a thread can only be used in that same thread." |
---|
1126 | n/a | "The object was created in thread id %ld and this is thread id %ld", |
---|
1127 | n/a | self->thread_ident, PyThread_get_thread_ident()); |
---|
1128 | n/a | return 0; |
---|
1129 | n/a | } |
---|
1130 | n/a | |
---|
1131 | n/a | } |
---|
1132 | n/a | #endif |
---|
1133 | n/a | return 1; |
---|
1134 | n/a | } |
---|
1135 | n/a | |
---|
1136 | n/a | static PyObject* pysqlite_connection_get_isolation_level(pysqlite_Connection* self, void* unused) |
---|
1137 | n/a | { |
---|
1138 | n/a | Py_INCREF(self->isolation_level); |
---|
1139 | n/a | return self->isolation_level; |
---|
1140 | n/a | } |
---|
1141 | n/a | |
---|
1142 | n/a | static PyObject* pysqlite_connection_get_total_changes(pysqlite_Connection* self, void* unused) |
---|
1143 | n/a | { |
---|
1144 | n/a | if (!pysqlite_check_connection(self)) { |
---|
1145 | n/a | return NULL; |
---|
1146 | n/a | } else { |
---|
1147 | n/a | return Py_BuildValue("i", sqlite3_total_changes(self->db)); |
---|
1148 | n/a | } |
---|
1149 | n/a | } |
---|
1150 | n/a | |
---|
1151 | n/a | static PyObject* pysqlite_connection_get_in_transaction(pysqlite_Connection* self, void* unused) |
---|
1152 | n/a | { |
---|
1153 | n/a | if (!pysqlite_check_connection(self)) { |
---|
1154 | n/a | return NULL; |
---|
1155 | n/a | } |
---|
1156 | n/a | if (!sqlite3_get_autocommit(self->db)) { |
---|
1157 | n/a | Py_RETURN_TRUE; |
---|
1158 | n/a | } |
---|
1159 | n/a | Py_RETURN_FALSE; |
---|
1160 | n/a | } |
---|
1161 | n/a | |
---|
1162 | n/a | static int pysqlite_connection_set_isolation_level(pysqlite_Connection* self, PyObject* isolation_level) |
---|
1163 | n/a | { |
---|
1164 | n/a | if (isolation_level == Py_None) { |
---|
1165 | n/a | PyObject *res = pysqlite_connection_commit(self, NULL); |
---|
1166 | n/a | if (!res) { |
---|
1167 | n/a | return -1; |
---|
1168 | n/a | } |
---|
1169 | n/a | Py_DECREF(res); |
---|
1170 | n/a | |
---|
1171 | n/a | self->begin_statement = NULL; |
---|
1172 | n/a | } else { |
---|
1173 | n/a | const char * const *candidate; |
---|
1174 | n/a | PyObject *uppercase_level; |
---|
1175 | n/a | _Py_IDENTIFIER(upper); |
---|
1176 | n/a | |
---|
1177 | n/a | if (!PyUnicode_Check(isolation_level)) { |
---|
1178 | n/a | PyErr_Format(PyExc_TypeError, |
---|
1179 | n/a | "isolation_level must be a string or None, not %.100s", |
---|
1180 | n/a | Py_TYPE(isolation_level)->tp_name); |
---|
1181 | n/a | return -1; |
---|
1182 | n/a | } |
---|
1183 | n/a | |
---|
1184 | n/a | uppercase_level = _PyObject_CallMethodIdObjArgs( |
---|
1185 | n/a | (PyObject *)&PyUnicode_Type, &PyId_upper, |
---|
1186 | n/a | isolation_level, NULL); |
---|
1187 | n/a | if (!uppercase_level) { |
---|
1188 | n/a | return -1; |
---|
1189 | n/a | } |
---|
1190 | n/a | for (candidate = begin_statements; *candidate; candidate++) { |
---|
1191 | n/a | if (_PyUnicode_EqualToASCIIString(uppercase_level, *candidate + 6)) |
---|
1192 | n/a | break; |
---|
1193 | n/a | } |
---|
1194 | n/a | Py_DECREF(uppercase_level); |
---|
1195 | n/a | if (!*candidate) { |
---|
1196 | n/a | PyErr_SetString(PyExc_ValueError, |
---|
1197 | n/a | "invalid value for isolation_level"); |
---|
1198 | n/a | return -1; |
---|
1199 | n/a | } |
---|
1200 | n/a | self->begin_statement = *candidate; |
---|
1201 | n/a | } |
---|
1202 | n/a | |
---|
1203 | n/a | Py_INCREF(isolation_level); |
---|
1204 | n/a | Py_XSETREF(self->isolation_level, isolation_level); |
---|
1205 | n/a | return 0; |
---|
1206 | n/a | } |
---|
1207 | n/a | |
---|
1208 | n/a | PyObject* pysqlite_connection_call(pysqlite_Connection* self, PyObject* args, PyObject* kwargs) |
---|
1209 | n/a | { |
---|
1210 | n/a | PyObject* sql; |
---|
1211 | n/a | pysqlite_Statement* statement; |
---|
1212 | n/a | PyObject* weakref; |
---|
1213 | n/a | int rc; |
---|
1214 | n/a | |
---|
1215 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1216 | n/a | return NULL; |
---|
1217 | n/a | } |
---|
1218 | n/a | |
---|
1219 | n/a | if (!_PyArg_NoKeywords(MODULE_NAME ".Connection()", kwargs)) |
---|
1220 | n/a | return NULL; |
---|
1221 | n/a | |
---|
1222 | n/a | if (!PyArg_ParseTuple(args, "O", &sql)) |
---|
1223 | n/a | return NULL; |
---|
1224 | n/a | |
---|
1225 | n/a | _pysqlite_drop_unused_statement_references(self); |
---|
1226 | n/a | |
---|
1227 | n/a | statement = PyObject_New(pysqlite_Statement, &pysqlite_StatementType); |
---|
1228 | n/a | if (!statement) { |
---|
1229 | n/a | return NULL; |
---|
1230 | n/a | } |
---|
1231 | n/a | |
---|
1232 | n/a | statement->db = NULL; |
---|
1233 | n/a | statement->st = NULL; |
---|
1234 | n/a | statement->sql = NULL; |
---|
1235 | n/a | statement->in_use = 0; |
---|
1236 | n/a | statement->in_weakreflist = NULL; |
---|
1237 | n/a | |
---|
1238 | n/a | rc = pysqlite_statement_create(statement, self, sql); |
---|
1239 | n/a | if (rc != SQLITE_OK) { |
---|
1240 | n/a | if (rc == PYSQLITE_TOO_MUCH_SQL) { |
---|
1241 | n/a | PyErr_SetString(pysqlite_Warning, "You can only execute one statement at a time."); |
---|
1242 | n/a | } else if (rc == PYSQLITE_SQL_WRONG_TYPE) { |
---|
1243 | n/a | if (PyErr_ExceptionMatches(PyExc_TypeError)) |
---|
1244 | n/a | PyErr_SetString(pysqlite_Warning, "SQL is of wrong type. Must be string."); |
---|
1245 | n/a | } else { |
---|
1246 | n/a | (void)pysqlite_statement_reset(statement); |
---|
1247 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
1248 | n/a | } |
---|
1249 | n/a | goto error; |
---|
1250 | n/a | } |
---|
1251 | n/a | |
---|
1252 | n/a | weakref = PyWeakref_NewRef((PyObject*)statement, NULL); |
---|
1253 | n/a | if (weakref == NULL) |
---|
1254 | n/a | goto error; |
---|
1255 | n/a | if (PyList_Append(self->statements, weakref) != 0) { |
---|
1256 | n/a | Py_DECREF(weakref); |
---|
1257 | n/a | goto error; |
---|
1258 | n/a | } |
---|
1259 | n/a | Py_DECREF(weakref); |
---|
1260 | n/a | |
---|
1261 | n/a | return (PyObject*)statement; |
---|
1262 | n/a | |
---|
1263 | n/a | error: |
---|
1264 | n/a | Py_DECREF(statement); |
---|
1265 | n/a | return NULL; |
---|
1266 | n/a | } |
---|
1267 | n/a | |
---|
1268 | n/a | PyObject* pysqlite_connection_execute(pysqlite_Connection* self, PyObject* args) |
---|
1269 | n/a | { |
---|
1270 | n/a | PyObject* cursor = 0; |
---|
1271 | n/a | PyObject* result = 0; |
---|
1272 | n/a | PyObject* method = 0; |
---|
1273 | n/a | |
---|
1274 | n/a | cursor = _PyObject_CallMethodId((PyObject*)self, &PyId_cursor, NULL); |
---|
1275 | n/a | if (!cursor) { |
---|
1276 | n/a | goto error; |
---|
1277 | n/a | } |
---|
1278 | n/a | |
---|
1279 | n/a | method = PyObject_GetAttrString(cursor, "execute"); |
---|
1280 | n/a | if (!method) { |
---|
1281 | n/a | Py_CLEAR(cursor); |
---|
1282 | n/a | goto error; |
---|
1283 | n/a | } |
---|
1284 | n/a | |
---|
1285 | n/a | result = PyObject_CallObject(method, args); |
---|
1286 | n/a | if (!result) { |
---|
1287 | n/a | Py_CLEAR(cursor); |
---|
1288 | n/a | } |
---|
1289 | n/a | |
---|
1290 | n/a | error: |
---|
1291 | n/a | Py_XDECREF(result); |
---|
1292 | n/a | Py_XDECREF(method); |
---|
1293 | n/a | |
---|
1294 | n/a | return cursor; |
---|
1295 | n/a | } |
---|
1296 | n/a | |
---|
1297 | n/a | PyObject* pysqlite_connection_executemany(pysqlite_Connection* self, PyObject* args) |
---|
1298 | n/a | { |
---|
1299 | n/a | PyObject* cursor = 0; |
---|
1300 | n/a | PyObject* result = 0; |
---|
1301 | n/a | PyObject* method = 0; |
---|
1302 | n/a | |
---|
1303 | n/a | cursor = _PyObject_CallMethodId((PyObject*)self, &PyId_cursor, NULL); |
---|
1304 | n/a | if (!cursor) { |
---|
1305 | n/a | goto error; |
---|
1306 | n/a | } |
---|
1307 | n/a | |
---|
1308 | n/a | method = PyObject_GetAttrString(cursor, "executemany"); |
---|
1309 | n/a | if (!method) { |
---|
1310 | n/a | Py_CLEAR(cursor); |
---|
1311 | n/a | goto error; |
---|
1312 | n/a | } |
---|
1313 | n/a | |
---|
1314 | n/a | result = PyObject_CallObject(method, args); |
---|
1315 | n/a | if (!result) { |
---|
1316 | n/a | Py_CLEAR(cursor); |
---|
1317 | n/a | } |
---|
1318 | n/a | |
---|
1319 | n/a | error: |
---|
1320 | n/a | Py_XDECREF(result); |
---|
1321 | n/a | Py_XDECREF(method); |
---|
1322 | n/a | |
---|
1323 | n/a | return cursor; |
---|
1324 | n/a | } |
---|
1325 | n/a | |
---|
1326 | n/a | PyObject* pysqlite_connection_executescript(pysqlite_Connection* self, PyObject* args) |
---|
1327 | n/a | { |
---|
1328 | n/a | PyObject* cursor = 0; |
---|
1329 | n/a | PyObject* result = 0; |
---|
1330 | n/a | PyObject* method = 0; |
---|
1331 | n/a | |
---|
1332 | n/a | cursor = _PyObject_CallMethodId((PyObject*)self, &PyId_cursor, NULL); |
---|
1333 | n/a | if (!cursor) { |
---|
1334 | n/a | goto error; |
---|
1335 | n/a | } |
---|
1336 | n/a | |
---|
1337 | n/a | method = PyObject_GetAttrString(cursor, "executescript"); |
---|
1338 | n/a | if (!method) { |
---|
1339 | n/a | Py_CLEAR(cursor); |
---|
1340 | n/a | goto error; |
---|
1341 | n/a | } |
---|
1342 | n/a | |
---|
1343 | n/a | result = PyObject_CallObject(method, args); |
---|
1344 | n/a | if (!result) { |
---|
1345 | n/a | Py_CLEAR(cursor); |
---|
1346 | n/a | } |
---|
1347 | n/a | |
---|
1348 | n/a | error: |
---|
1349 | n/a | Py_XDECREF(result); |
---|
1350 | n/a | Py_XDECREF(method); |
---|
1351 | n/a | |
---|
1352 | n/a | return cursor; |
---|
1353 | n/a | } |
---|
1354 | n/a | |
---|
1355 | n/a | /* ------------------------- COLLATION CODE ------------------------ */ |
---|
1356 | n/a | |
---|
1357 | n/a | static int |
---|
1358 | n/a | pysqlite_collation_callback( |
---|
1359 | n/a | void* context, |
---|
1360 | n/a | int text1_length, const void* text1_data, |
---|
1361 | n/a | int text2_length, const void* text2_data) |
---|
1362 | n/a | { |
---|
1363 | n/a | PyObject* callback = (PyObject*)context; |
---|
1364 | n/a | PyObject* string1 = 0; |
---|
1365 | n/a | PyObject* string2 = 0; |
---|
1366 | n/a | #ifdef WITH_THREAD |
---|
1367 | n/a | PyGILState_STATE gilstate; |
---|
1368 | n/a | #endif |
---|
1369 | n/a | PyObject* retval = NULL; |
---|
1370 | n/a | long longval; |
---|
1371 | n/a | int result = 0; |
---|
1372 | n/a | #ifdef WITH_THREAD |
---|
1373 | n/a | gilstate = PyGILState_Ensure(); |
---|
1374 | n/a | #endif |
---|
1375 | n/a | |
---|
1376 | n/a | if (PyErr_Occurred()) { |
---|
1377 | n/a | goto finally; |
---|
1378 | n/a | } |
---|
1379 | n/a | |
---|
1380 | n/a | string1 = PyUnicode_FromStringAndSize((const char*)text1_data, text1_length); |
---|
1381 | n/a | string2 = PyUnicode_FromStringAndSize((const char*)text2_data, text2_length); |
---|
1382 | n/a | |
---|
1383 | n/a | if (!string1 || !string2) { |
---|
1384 | n/a | goto finally; /* failed to allocate strings */ |
---|
1385 | n/a | } |
---|
1386 | n/a | |
---|
1387 | n/a | retval = PyObject_CallFunctionObjArgs(callback, string1, string2, NULL); |
---|
1388 | n/a | |
---|
1389 | n/a | if (!retval) { |
---|
1390 | n/a | /* execution failed */ |
---|
1391 | n/a | goto finally; |
---|
1392 | n/a | } |
---|
1393 | n/a | |
---|
1394 | n/a | longval = PyLong_AsLongAndOverflow(retval, &result); |
---|
1395 | n/a | if (longval == -1 && PyErr_Occurred()) { |
---|
1396 | n/a | PyErr_Clear(); |
---|
1397 | n/a | result = 0; |
---|
1398 | n/a | } |
---|
1399 | n/a | else if (!result) { |
---|
1400 | n/a | if (longval > 0) |
---|
1401 | n/a | result = 1; |
---|
1402 | n/a | else if (longval < 0) |
---|
1403 | n/a | result = -1; |
---|
1404 | n/a | } |
---|
1405 | n/a | |
---|
1406 | n/a | finally: |
---|
1407 | n/a | Py_XDECREF(string1); |
---|
1408 | n/a | Py_XDECREF(string2); |
---|
1409 | n/a | Py_XDECREF(retval); |
---|
1410 | n/a | #ifdef WITH_THREAD |
---|
1411 | n/a | PyGILState_Release(gilstate); |
---|
1412 | n/a | #endif |
---|
1413 | n/a | return result; |
---|
1414 | n/a | } |
---|
1415 | n/a | |
---|
1416 | n/a | static PyObject * |
---|
1417 | n/a | pysqlite_connection_interrupt(pysqlite_Connection* self, PyObject* args) |
---|
1418 | n/a | { |
---|
1419 | n/a | PyObject* retval = NULL; |
---|
1420 | n/a | |
---|
1421 | n/a | if (!pysqlite_check_connection(self)) { |
---|
1422 | n/a | goto finally; |
---|
1423 | n/a | } |
---|
1424 | n/a | |
---|
1425 | n/a | sqlite3_interrupt(self->db); |
---|
1426 | n/a | |
---|
1427 | n/a | Py_INCREF(Py_None); |
---|
1428 | n/a | retval = Py_None; |
---|
1429 | n/a | |
---|
1430 | n/a | finally: |
---|
1431 | n/a | return retval; |
---|
1432 | n/a | } |
---|
1433 | n/a | |
---|
1434 | n/a | /* Function author: Paul Kippes <kippesp@gmail.com> |
---|
1435 | n/a | * Class method of Connection to call the Python function _iterdump |
---|
1436 | n/a | * of the sqlite3 module. |
---|
1437 | n/a | */ |
---|
1438 | n/a | static PyObject * |
---|
1439 | n/a | pysqlite_connection_iterdump(pysqlite_Connection* self, PyObject* args) |
---|
1440 | n/a | { |
---|
1441 | n/a | PyObject* retval = NULL; |
---|
1442 | n/a | PyObject* module = NULL; |
---|
1443 | n/a | PyObject* module_dict; |
---|
1444 | n/a | PyObject* pyfn_iterdump; |
---|
1445 | n/a | |
---|
1446 | n/a | if (!pysqlite_check_connection(self)) { |
---|
1447 | n/a | goto finally; |
---|
1448 | n/a | } |
---|
1449 | n/a | |
---|
1450 | n/a | module = PyImport_ImportModule(MODULE_NAME ".dump"); |
---|
1451 | n/a | if (!module) { |
---|
1452 | n/a | goto finally; |
---|
1453 | n/a | } |
---|
1454 | n/a | |
---|
1455 | n/a | module_dict = PyModule_GetDict(module); |
---|
1456 | n/a | if (!module_dict) { |
---|
1457 | n/a | goto finally; |
---|
1458 | n/a | } |
---|
1459 | n/a | |
---|
1460 | n/a | pyfn_iterdump = PyDict_GetItemString(module_dict, "_iterdump"); |
---|
1461 | n/a | if (!pyfn_iterdump) { |
---|
1462 | n/a | PyErr_SetString(pysqlite_OperationalError, "Failed to obtain _iterdump() reference"); |
---|
1463 | n/a | goto finally; |
---|
1464 | n/a | } |
---|
1465 | n/a | |
---|
1466 | n/a | args = PyTuple_New(1); |
---|
1467 | n/a | if (!args) { |
---|
1468 | n/a | goto finally; |
---|
1469 | n/a | } |
---|
1470 | n/a | Py_INCREF(self); |
---|
1471 | n/a | PyTuple_SetItem(args, 0, (PyObject*)self); |
---|
1472 | n/a | retval = PyObject_CallObject(pyfn_iterdump, args); |
---|
1473 | n/a | |
---|
1474 | n/a | finally: |
---|
1475 | n/a | Py_XDECREF(args); |
---|
1476 | n/a | Py_XDECREF(module); |
---|
1477 | n/a | return retval; |
---|
1478 | n/a | } |
---|
1479 | n/a | |
---|
1480 | n/a | static PyObject * |
---|
1481 | n/a | pysqlite_connection_create_collation(pysqlite_Connection* self, PyObject* args) |
---|
1482 | n/a | { |
---|
1483 | n/a | PyObject* callable; |
---|
1484 | n/a | PyObject* uppercase_name = 0; |
---|
1485 | n/a | PyObject* name; |
---|
1486 | n/a | PyObject* retval; |
---|
1487 | n/a | Py_ssize_t i, len; |
---|
1488 | n/a | _Py_IDENTIFIER(upper); |
---|
1489 | n/a | const char *uppercase_name_str; |
---|
1490 | n/a | int rc; |
---|
1491 | n/a | unsigned int kind; |
---|
1492 | n/a | void *data; |
---|
1493 | n/a | |
---|
1494 | n/a | if (!pysqlite_check_thread(self) || !pysqlite_check_connection(self)) { |
---|
1495 | n/a | goto finally; |
---|
1496 | n/a | } |
---|
1497 | n/a | |
---|
1498 | n/a | if (!PyArg_ParseTuple(args, "UO:create_collation(name, callback)", |
---|
1499 | n/a | &name, &callable)) { |
---|
1500 | n/a | goto finally; |
---|
1501 | n/a | } |
---|
1502 | n/a | |
---|
1503 | n/a | uppercase_name = _PyObject_CallMethodIdObjArgs((PyObject *)&PyUnicode_Type, |
---|
1504 | n/a | &PyId_upper, name, NULL); |
---|
1505 | n/a | if (!uppercase_name) { |
---|
1506 | n/a | goto finally; |
---|
1507 | n/a | } |
---|
1508 | n/a | |
---|
1509 | n/a | if (PyUnicode_READY(uppercase_name)) |
---|
1510 | n/a | goto finally; |
---|
1511 | n/a | len = PyUnicode_GET_LENGTH(uppercase_name); |
---|
1512 | n/a | kind = PyUnicode_KIND(uppercase_name); |
---|
1513 | n/a | data = PyUnicode_DATA(uppercase_name); |
---|
1514 | n/a | for (i=0; i<len; i++) { |
---|
1515 | n/a | Py_UCS4 ch = PyUnicode_READ(kind, data, i); |
---|
1516 | n/a | if ((ch >= '0' && ch <= '9') |
---|
1517 | n/a | || (ch >= 'A' && ch <= 'Z') |
---|
1518 | n/a | || (ch == '_')) |
---|
1519 | n/a | { |
---|
1520 | n/a | continue; |
---|
1521 | n/a | } else { |
---|
1522 | n/a | PyErr_SetString(pysqlite_ProgrammingError, "invalid character in collation name"); |
---|
1523 | n/a | goto finally; |
---|
1524 | n/a | } |
---|
1525 | n/a | } |
---|
1526 | n/a | |
---|
1527 | n/a | uppercase_name_str = PyUnicode_AsUTF8(uppercase_name); |
---|
1528 | n/a | if (!uppercase_name_str) |
---|
1529 | n/a | goto finally; |
---|
1530 | n/a | |
---|
1531 | n/a | if (callable != Py_None && !PyCallable_Check(callable)) { |
---|
1532 | n/a | PyErr_SetString(PyExc_TypeError, "parameter must be callable"); |
---|
1533 | n/a | goto finally; |
---|
1534 | n/a | } |
---|
1535 | n/a | |
---|
1536 | n/a | if (callable != Py_None) { |
---|
1537 | n/a | if (PyDict_SetItem(self->collations, uppercase_name, callable) == -1) |
---|
1538 | n/a | goto finally; |
---|
1539 | n/a | } else { |
---|
1540 | n/a | if (PyDict_DelItem(self->collations, uppercase_name) == -1) |
---|
1541 | n/a | goto finally; |
---|
1542 | n/a | } |
---|
1543 | n/a | |
---|
1544 | n/a | rc = sqlite3_create_collation(self->db, |
---|
1545 | n/a | uppercase_name_str, |
---|
1546 | n/a | SQLITE_UTF8, |
---|
1547 | n/a | (callable != Py_None) ? callable : NULL, |
---|
1548 | n/a | (callable != Py_None) ? pysqlite_collation_callback : NULL); |
---|
1549 | n/a | if (rc != SQLITE_OK) { |
---|
1550 | n/a | PyDict_DelItem(self->collations, uppercase_name); |
---|
1551 | n/a | _pysqlite_seterror(self->db, NULL); |
---|
1552 | n/a | goto finally; |
---|
1553 | n/a | } |
---|
1554 | n/a | |
---|
1555 | n/a | finally: |
---|
1556 | n/a | Py_XDECREF(uppercase_name); |
---|
1557 | n/a | |
---|
1558 | n/a | if (PyErr_Occurred()) { |
---|
1559 | n/a | retval = NULL; |
---|
1560 | n/a | } else { |
---|
1561 | n/a | Py_INCREF(Py_None); |
---|
1562 | n/a | retval = Py_None; |
---|
1563 | n/a | } |
---|
1564 | n/a | |
---|
1565 | n/a | return retval; |
---|
1566 | n/a | } |
---|
1567 | n/a | |
---|
1568 | n/a | /* Called when the connection is used as a context manager. Returns itself as a |
---|
1569 | n/a | * convenience to the caller. */ |
---|
1570 | n/a | static PyObject * |
---|
1571 | n/a | pysqlite_connection_enter(pysqlite_Connection* self, PyObject* args) |
---|
1572 | n/a | { |
---|
1573 | n/a | Py_INCREF(self); |
---|
1574 | n/a | return (PyObject*)self; |
---|
1575 | n/a | } |
---|
1576 | n/a | |
---|
1577 | n/a | /** Called when the connection is used as a context manager. If there was any |
---|
1578 | n/a | * exception, a rollback takes place; otherwise we commit. */ |
---|
1579 | n/a | static PyObject * |
---|
1580 | n/a | pysqlite_connection_exit(pysqlite_Connection* self, PyObject* args) |
---|
1581 | n/a | { |
---|
1582 | n/a | PyObject* exc_type, *exc_value, *exc_tb; |
---|
1583 | n/a | char* method_name; |
---|
1584 | n/a | PyObject* result; |
---|
1585 | n/a | |
---|
1586 | n/a | if (!PyArg_ParseTuple(args, "OOO", &exc_type, &exc_value, &exc_tb)) { |
---|
1587 | n/a | return NULL; |
---|
1588 | n/a | } |
---|
1589 | n/a | |
---|
1590 | n/a | if (exc_type == Py_None && exc_value == Py_None && exc_tb == Py_None) { |
---|
1591 | n/a | method_name = "commit"; |
---|
1592 | n/a | } else { |
---|
1593 | n/a | method_name = "rollback"; |
---|
1594 | n/a | } |
---|
1595 | n/a | |
---|
1596 | n/a | result = PyObject_CallMethod((PyObject*)self, method_name, NULL); |
---|
1597 | n/a | if (!result) { |
---|
1598 | n/a | return NULL; |
---|
1599 | n/a | } |
---|
1600 | n/a | Py_DECREF(result); |
---|
1601 | n/a | |
---|
1602 | n/a | Py_RETURN_FALSE; |
---|
1603 | n/a | } |
---|
1604 | n/a | |
---|
1605 | n/a | static const char connection_doc[] = |
---|
1606 | n/a | PyDoc_STR("SQLite database connection object."); |
---|
1607 | n/a | |
---|
1608 | n/a | static PyGetSetDef connection_getset[] = { |
---|
1609 | n/a | {"isolation_level", (getter)pysqlite_connection_get_isolation_level, (setter)pysqlite_connection_set_isolation_level}, |
---|
1610 | n/a | {"total_changes", (getter)pysqlite_connection_get_total_changes, (setter)0}, |
---|
1611 | n/a | {"in_transaction", (getter)pysqlite_connection_get_in_transaction, (setter)0}, |
---|
1612 | n/a | {NULL} |
---|
1613 | n/a | }; |
---|
1614 | n/a | |
---|
1615 | n/a | static PyMethodDef connection_methods[] = { |
---|
1616 | n/a | {"cursor", (PyCFunction)pysqlite_connection_cursor, METH_VARARGS|METH_KEYWORDS, |
---|
1617 | n/a | PyDoc_STR("Return a cursor for the connection.")}, |
---|
1618 | n/a | {"close", (PyCFunction)pysqlite_connection_close, METH_NOARGS, |
---|
1619 | n/a | PyDoc_STR("Closes the connection.")}, |
---|
1620 | n/a | {"commit", (PyCFunction)pysqlite_connection_commit, METH_NOARGS, |
---|
1621 | n/a | PyDoc_STR("Commit the current transaction.")}, |
---|
1622 | n/a | {"rollback", (PyCFunction)pysqlite_connection_rollback, METH_NOARGS, |
---|
1623 | n/a | PyDoc_STR("Roll back the current transaction.")}, |
---|
1624 | n/a | {"create_function", (PyCFunction)pysqlite_connection_create_function, METH_VARARGS|METH_KEYWORDS, |
---|
1625 | n/a | PyDoc_STR("Creates a new function. Non-standard.")}, |
---|
1626 | n/a | {"create_aggregate", (PyCFunction)pysqlite_connection_create_aggregate, METH_VARARGS|METH_KEYWORDS, |
---|
1627 | n/a | PyDoc_STR("Creates a new aggregate. Non-standard.")}, |
---|
1628 | n/a | {"set_authorizer", (PyCFunction)pysqlite_connection_set_authorizer, METH_VARARGS|METH_KEYWORDS, |
---|
1629 | n/a | PyDoc_STR("Sets authorizer callback. Non-standard.")}, |
---|
1630 | n/a | #ifdef HAVE_LOAD_EXTENSION |
---|
1631 | n/a | {"enable_load_extension", (PyCFunction)pysqlite_enable_load_extension, METH_VARARGS, |
---|
1632 | n/a | PyDoc_STR("Enable dynamic loading of SQLite extension modules. Non-standard.")}, |
---|
1633 | n/a | {"load_extension", (PyCFunction)pysqlite_load_extension, METH_VARARGS, |
---|
1634 | n/a | PyDoc_STR("Load SQLite extension module. Non-standard.")}, |
---|
1635 | n/a | #endif |
---|
1636 | n/a | {"set_progress_handler", (PyCFunction)pysqlite_connection_set_progress_handler, METH_VARARGS|METH_KEYWORDS, |
---|
1637 | n/a | PyDoc_STR("Sets progress handler callback. Non-standard.")}, |
---|
1638 | n/a | {"set_trace_callback", (PyCFunction)pysqlite_connection_set_trace_callback, METH_VARARGS|METH_KEYWORDS, |
---|
1639 | n/a | PyDoc_STR("Sets a trace callback called for each SQL statement (passed as unicode). Non-standard.")}, |
---|
1640 | n/a | {"execute", (PyCFunction)pysqlite_connection_execute, METH_VARARGS, |
---|
1641 | n/a | PyDoc_STR("Executes a SQL statement. Non-standard.")}, |
---|
1642 | n/a | {"executemany", (PyCFunction)pysqlite_connection_executemany, METH_VARARGS, |
---|
1643 | n/a | PyDoc_STR("Repeatedly executes a SQL statement. Non-standard.")}, |
---|
1644 | n/a | {"executescript", (PyCFunction)pysqlite_connection_executescript, METH_VARARGS, |
---|
1645 | n/a | PyDoc_STR("Executes a multiple SQL statements at once. Non-standard.")}, |
---|
1646 | n/a | {"create_collation", (PyCFunction)pysqlite_connection_create_collation, METH_VARARGS, |
---|
1647 | n/a | PyDoc_STR("Creates a collation function. Non-standard.")}, |
---|
1648 | n/a | {"interrupt", (PyCFunction)pysqlite_connection_interrupt, METH_NOARGS, |
---|
1649 | n/a | PyDoc_STR("Abort any pending database operation. Non-standard.")}, |
---|
1650 | n/a | {"iterdump", (PyCFunction)pysqlite_connection_iterdump, METH_NOARGS, |
---|
1651 | n/a | PyDoc_STR("Returns iterator to the dump of the database in an SQL text format. Non-standard.")}, |
---|
1652 | n/a | {"__enter__", (PyCFunction)pysqlite_connection_enter, METH_NOARGS, |
---|
1653 | n/a | PyDoc_STR("For context manager. Non-standard.")}, |
---|
1654 | n/a | {"__exit__", (PyCFunction)pysqlite_connection_exit, METH_VARARGS, |
---|
1655 | n/a | PyDoc_STR("For context manager. Non-standard.")}, |
---|
1656 | n/a | {NULL, NULL} |
---|
1657 | n/a | }; |
---|
1658 | n/a | |
---|
1659 | n/a | static struct PyMemberDef connection_members[] = |
---|
1660 | n/a | { |
---|
1661 | n/a | {"Warning", T_OBJECT, offsetof(pysqlite_Connection, Warning), READONLY}, |
---|
1662 | n/a | {"Error", T_OBJECT, offsetof(pysqlite_Connection, Error), READONLY}, |
---|
1663 | n/a | {"InterfaceError", T_OBJECT, offsetof(pysqlite_Connection, InterfaceError), READONLY}, |
---|
1664 | n/a | {"DatabaseError", T_OBJECT, offsetof(pysqlite_Connection, DatabaseError), READONLY}, |
---|
1665 | n/a | {"DataError", T_OBJECT, offsetof(pysqlite_Connection, DataError), READONLY}, |
---|
1666 | n/a | {"OperationalError", T_OBJECT, offsetof(pysqlite_Connection, OperationalError), READONLY}, |
---|
1667 | n/a | {"IntegrityError", T_OBJECT, offsetof(pysqlite_Connection, IntegrityError), READONLY}, |
---|
1668 | n/a | {"InternalError", T_OBJECT, offsetof(pysqlite_Connection, InternalError), READONLY}, |
---|
1669 | n/a | {"ProgrammingError", T_OBJECT, offsetof(pysqlite_Connection, ProgrammingError), READONLY}, |
---|
1670 | n/a | {"NotSupportedError", T_OBJECT, offsetof(pysqlite_Connection, NotSupportedError), READONLY}, |
---|
1671 | n/a | {"row_factory", T_OBJECT, offsetof(pysqlite_Connection, row_factory)}, |
---|
1672 | n/a | {"text_factory", T_OBJECT, offsetof(pysqlite_Connection, text_factory)}, |
---|
1673 | n/a | {NULL} |
---|
1674 | n/a | }; |
---|
1675 | n/a | |
---|
1676 | n/a | PyTypeObject pysqlite_ConnectionType = { |
---|
1677 | n/a | PyVarObject_HEAD_INIT(NULL, 0) |
---|
1678 | n/a | MODULE_NAME ".Connection", /* tp_name */ |
---|
1679 | n/a | sizeof(pysqlite_Connection), /* tp_basicsize */ |
---|
1680 | n/a | 0, /* tp_itemsize */ |
---|
1681 | n/a | (destructor)pysqlite_connection_dealloc, /* tp_dealloc */ |
---|
1682 | n/a | 0, /* tp_print */ |
---|
1683 | n/a | 0, /* tp_getattr */ |
---|
1684 | n/a | 0, /* tp_setattr */ |
---|
1685 | n/a | 0, /* tp_reserved */ |
---|
1686 | n/a | 0, /* tp_repr */ |
---|
1687 | n/a | 0, /* tp_as_number */ |
---|
1688 | n/a | 0, /* tp_as_sequence */ |
---|
1689 | n/a | 0, /* tp_as_mapping */ |
---|
1690 | n/a | 0, /* tp_hash */ |
---|
1691 | n/a | (ternaryfunc)pysqlite_connection_call, /* tp_call */ |
---|
1692 | n/a | 0, /* tp_str */ |
---|
1693 | n/a | 0, /* tp_getattro */ |
---|
1694 | n/a | 0, /* tp_setattro */ |
---|
1695 | n/a | 0, /* tp_as_buffer */ |
---|
1696 | n/a | Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, /* tp_flags */ |
---|
1697 | n/a | connection_doc, /* tp_doc */ |
---|
1698 | n/a | 0, /* tp_traverse */ |
---|
1699 | n/a | 0, /* tp_clear */ |
---|
1700 | n/a | 0, /* tp_richcompare */ |
---|
1701 | n/a | 0, /* tp_weaklistoffset */ |
---|
1702 | n/a | 0, /* tp_iter */ |
---|
1703 | n/a | 0, /* tp_iternext */ |
---|
1704 | n/a | connection_methods, /* tp_methods */ |
---|
1705 | n/a | connection_members, /* tp_members */ |
---|
1706 | n/a | connection_getset, /* tp_getset */ |
---|
1707 | n/a | 0, /* tp_base */ |
---|
1708 | n/a | 0, /* tp_dict */ |
---|
1709 | n/a | 0, /* tp_descr_get */ |
---|
1710 | n/a | 0, /* tp_descr_set */ |
---|
1711 | n/a | 0, /* tp_dictoffset */ |
---|
1712 | n/a | (initproc)pysqlite_connection_init, /* tp_init */ |
---|
1713 | n/a | 0, /* tp_alloc */ |
---|
1714 | n/a | 0, /* tp_new */ |
---|
1715 | n/a | 0 /* tp_free */ |
---|
1716 | n/a | }; |
---|
1717 | n/a | |
---|
1718 | n/a | extern int pysqlite_connection_setup_types(void) |
---|
1719 | n/a | { |
---|
1720 | n/a | pysqlite_ConnectionType.tp_new = PyType_GenericNew; |
---|
1721 | n/a | return PyType_Ready(&pysqlite_ConnectionType); |
---|
1722 | n/a | } |
---|