cpython-lru_cache-weakref: Modules/

annotate Modules/_sqlite/util.c @ 87690:66c1c9f32567 default tip

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	46d8fea24490
children

rev	line source
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	1 /* util.c - various utility functions
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	2 *
64423 e9cd15d539e1 Welcome to the UTF-8 world. Florent Xicluna <florent.xicluna@gmail.com> parents: 59372 diff changeset	3 * Copyright (C) 2005-2010 Gerhard Häring <gh@ghaering.de>
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	4 *
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	5 * This file is part of pysqlite.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	6 *
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	7 * This software is provided 'as-is', without any express or implied
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	8 * warranty. In no event will the authors be held liable for any damages
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	9 * arising from the use of this software.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	10 *
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	11 * Permission is granted to anyone to use this software for any purpose,
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	12 * including commercial applications, and to alter it and redistribute it
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	13 * freely, subject to the following restrictions:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	14 *
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	15 * 1. The origin of this software must not be misrepresented; you must not
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	16 * claim that you wrote the original software. If you use this software
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	17 * in a product, an acknowledgment in the product documentation would be
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	18 * appreciated but is not required.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	19 * 2. Altered source versions must be plainly marked as such, and must not be
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	20 * misrepresented as being the original software.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	21 * 3. This notice may not be removed or altered from any source distribution.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	22 */
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	23
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	24 #include "module.h"
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	25 #include "connection.h"
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	26
49178 8f886acaa142 Merged revisions 66394,66404,66412,66414,66424-66436 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 46178 diff changeset	27 int pysqlite_step(sqlite3_stmt* statement, pysqlite_Connection* connection)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	28 {
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	29 int rc;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	30
44291 71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	31 if (statement == NULL) {
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	32 /* this is a workaround for SQLite 3.5 and later. it now apparently
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	33 * returns NULL for "no-operation" statements */
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	34 rc = SQLITE_OK;
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	35 } else {
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	36 Py_BEGIN_ALLOW_THREADS
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	37 rc = sqlite3_step(statement);
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	38 Py_END_ALLOW_THREADS
71623878057b Merged revisions 59465-59487 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 40643 diff changeset	39 }
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	40
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	41 return rc;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	42 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	43
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	44 /**
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	45 * Checks the SQLite error code and sets the appropriate DB-API exception.
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	46 * Returns the error code (0 means no error occurred).
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	47 */
46178 e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	48 int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st)
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	49 {
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	50 int errorcode;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	51
46178 e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	52 /* SQLite often doesn't report anything useful, unless you reset the statement first */
e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	53 if (st != NULL) {
e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	54 (void)sqlite3_reset(st);
e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	55 }
e06e08e8fdce Bring sqlite3 module up-to-date with what's now in 2.6. Almost. I intentionally Gerhard Häring <gh@ghaering.de> parents: 44291 diff changeset	56
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	57 errorcode = sqlite3_errcode(db);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	58
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	59 switch (errorcode)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	60 {
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	61 case SQLITE_OK:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	62 PyErr_Clear();
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	63 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	64 case SQLITE_INTERNAL:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	65 case SQLITE_NOTFOUND:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	66 PyErr_SetString(pysqlite_InternalError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	67 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	68 case SQLITE_NOMEM:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	69 (void)PyErr_NoMemory();
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	70 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	71 case SQLITE_ERROR:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	72 case SQLITE_PERM:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	73 case SQLITE_ABORT:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	74 case SQLITE_BUSY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	75 case SQLITE_LOCKED:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	76 case SQLITE_READONLY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	77 case SQLITE_INTERRUPT:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	78 case SQLITE_IOERR:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	79 case SQLITE_FULL:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	80 case SQLITE_CANTOPEN:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	81 case SQLITE_PROTOCOL:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	82 case SQLITE_EMPTY:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	83 case SQLITE_SCHEMA:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	84 PyErr_SetString(pysqlite_OperationalError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	85 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	86 case SQLITE_CORRUPT:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	87 PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	88 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	89 case SQLITE_TOOBIG:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	90 PyErr_SetString(pysqlite_DataError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	91 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	92 case SQLITE_CONSTRAINT:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	93 case SQLITE_MISMATCH:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	94 PyErr_SetString(pysqlite_IntegrityError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	95 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	96 case SQLITE_MISUSE:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	97 PyErr_SetString(pysqlite_ProgrammingError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	98 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	99 default:
40643 47f9efdc0855 Merged revisions 53304-53433,53435-53450 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	100 PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	101 break;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	102 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	103
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	104 return errorcode;
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	105 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: diff changeset	106
82055 55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	107 #ifdef WORDS_BIGENDIAN
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	108 # define IS_LITTLE_ENDIAN 0
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	109 #else
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	110 # define IS_LITTLE_ENDIAN 1
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	111 #endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	112
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	113 PyObject *
83528 b677f656c0bf Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3, Serhiy Storchaka <storchaka@gmail.com> parents: 82055 diff changeset	114 _pysqlite_long_from_int64(sqlite_int64 value)
82055 55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	115 {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	116 #ifdef HAVE_LONG_LONG
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	117 # if SIZEOF_LONG_LONG < 8
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	118 if (value > PY_LLONG_MAX \|\| value < PY_LLONG_MIN) {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	119 return _PyLong_FromByteArray(&value, sizeof(value),
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	120 IS_LITTLE_ENDIAN, 1 /* signed */);
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	121 }
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	122 # endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	123 # if SIZEOF_LONG < SIZEOF_LONG_LONG
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	124 if (value > LONG_MAX \|\| value < LONG_MIN)
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	125 return PyLong_FromLongLong(value);
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	126 # endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	127 #else
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	128 # if SIZEOF_LONG < 8
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	129 if (value > LONG_MAX \|\| value < LONG_MIN) {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	130 return _PyLong_FromByteArray(&value, sizeof(value),
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	131 IS_LITTLE_ENDIAN, 1 /* signed */);
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	132 }
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	133 # endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	134 #endif
84018 46d8fea24490 Fix compilater warnings on Windows 64-bit Victor Stinner <victor.stinner@gmail.com> parents: 83528 diff changeset	135 return PyLong_FromLong(Py_SAFE_DOWNCAST(value, sqlite_int64, long));
82055 55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	136 }
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	137
83528 b677f656c0bf Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3, Serhiy Storchaka <storchaka@gmail.com> parents: 82055 diff changeset	138 sqlite_int64
82055 55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	139 _pysqlite_long_as_int64(PyObject * py_val)
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	140 {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	141 int overflow;
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	142 #ifdef HAVE_LONG_LONG
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	143 PY_LONG_LONG value = PyLong_AsLongLongAndOverflow(py_val, &overflow);
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	144 #else
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	145 long value = PyLong_AsLongAndOverflow(py_val, &overflow);
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	146 #endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	147 if (value == -1 && PyErr_Occurred())
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	148 return -1;
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	149 if (!overflow) {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	150 #ifdef HAVE_LONG_LONG
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	151 # if SIZEOF_LONG_LONG > 8
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	152 if (-0x8000000000000000LL <= value && value <= 0x7FFFFFFFFFFFFFFFLL)
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	153 # endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	154 #else
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	155 # if SIZEOF_LONG > 8
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	156 if (-0x8000000000000000L <= value && value <= 0x7FFFFFFFFFFFFFFFL)
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	157 # endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	158 #endif
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	159 return value;
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	160 }
83528 b677f656c0bf Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3, Serhiy Storchaka <storchaka@gmail.com> parents: 82055 diff changeset	161 else if (sizeof(value) < sizeof(sqlite_int64)) {
b677f656c0bf Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3, Serhiy Storchaka <storchaka@gmail.com> parents: 82055 diff changeset	162 sqlite_int64 int64val;
82055 55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	163 if (_PyLong_AsByteArray((PyLongObject *)py_val,
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	164 (unsigned char *)&int64val, sizeof(int64val),
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	165 IS_LITTLE_ENDIAN, 1 /* signed */) >= 0) {
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	166 return int64val;
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	167 }
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	168 }
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	169 PyErr_SetString(PyExc_OverflowError,
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	170 "Python int too large to convert to SQLite INTEGER");
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	171 return -1;
55a89352e220 Issue #17073: Fix some integer overflows in sqlite3 module. Serhiy Storchaka <storchaka@gmail.com> parents: 64423 diff changeset	172 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/_sqlite/util.c @ 87690:66c1c9f32567 default tip