Mercurial > cpython-lru_cache-weakref

annotate Modules/_sqlite/cursor.h @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents c6523d6faef4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* cursor.h - definitions for the cursor type
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2 *
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e9cd15d539e1 Welcome to the UTF-8 world.
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3 * Copyright (C) 2004-2010 Gerhard Häring <gh@ghaering.de>
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4 *
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5 * This file is part of pysqlite.
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6 *
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7 * This software is provided 'as-is', without any express or implied
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8 * warranty. In no event will the authors be held liable for any damages
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9 * arising from the use of this software.
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10 *
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11 * Permission is granted to anyone to use this software for any purpose,
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12 * including commercial applications, and to alter it and redistribute it
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13 * freely, subject to the following restrictions:
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14 *
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15 * 1. The origin of this software must not be misrepresented; you must not
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16 * claim that you wrote the original software. If you use this software
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17 * in a product, an acknowledgment in the product documentation would be
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18 * appreciated but is not required.
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19 * 2. Altered source versions must be plainly marked as such, and must not be
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20 * misrepresented as being the original software.
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21 * 3. This notice may not be removed or altered from any source distribution.
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22 */
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23
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24 #ifndef PYSQLITE_CURSOR_H
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25 #define PYSQLITE_CURSOR_H
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26 #include "Python.h"
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27
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28 #include "statement.h"
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29 #include "connection.h"
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30 #include "module.h"
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31
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32 typedef struct
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33 {
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34 PyObject_HEAD
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35 pysqlite_Connection* connection;
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36 PyObject* description;
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37 PyObject* row_cast_map;
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38 int arraysize;
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39 PyObject* lastrowid;
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40 long rowcount;
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41 PyObject* row_factory;
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42 pysqlite_Statement* statement;
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43 int closed;
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44 int reset;
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45 int locked;
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46 int initialized;
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47
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48 /* the next row to be returned, NULL if no next row available */
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49 PyObject* next_row;
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50
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51 PyObject* in_weakreflist; /* List of weak references */
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52 } pysqlite_Cursor;
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53
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54 typedef enum {
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55 STATEMENT_INVALID, STATEMENT_INSERT, STATEMENT_DELETE,
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56 STATEMENT_UPDATE, STATEMENT_REPLACE, STATEMENT_SELECT,
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57 STATEMENT_OTHER
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58 } pysqlite_StatementKind;
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59
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60 extern PyTypeObject pysqlite_CursorType;
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62 PyObject* pysqlite_cursor_execute(pysqlite_Cursor* self, PyObject* args);
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63 PyObject* pysqlite_cursor_executemany(pysqlite_Cursor* self, PyObject* args);
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64 PyObject* pysqlite_cursor_getiter(pysqlite_Cursor *self);
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65 PyObject* pysqlite_cursor_iternext(pysqlite_Cursor *self);
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66 PyObject* pysqlite_cursor_fetchone(pysqlite_Cursor* self, PyObject* args);
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67 PyObject* pysqlite_cursor_fetchmany(pysqlite_Cursor* self, PyObject* args, PyObject* kwargs);
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68 PyObject* pysqlite_cursor_fetchall(pysqlite_Cursor* self, PyObject* args);
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69 PyObject* pysqlite_noop(pysqlite_Connection* self, PyObject* args);
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70 PyObject* pysqlite_cursor_close(pysqlite_Cursor* self, PyObject* args);
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71
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72 int pysqlite_cursor_setup_types(void);
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73
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74 #define UNKNOWN (-1)
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75 #endif