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Code Activity
10,496 Commits 1,606 Branches 185 Tags
7a5bcc0f08d1b8b45adb9870c31e4c1b68c644bd
Commit Graph

840 Commits

Author SHA1 Message Date
danielk1977
cd581a7eff Call balance_shallower() from balance_nonroot() instead of from balance(). This simplifies coverage testing a bit. (CVS 6805) 
FossilOrigin-Name: da9893e23caf89090c8b6563cb5f88d7dbf7c260
 2009-06-23 15:43:39 +00:00
danielk1977
54109bb206 Fix a failing assert in btree.c. The same bug was causing a spurious SQLITE_CORRUPT return when compiled without SQLITE_DEBUG. (CVS 6800) 
FossilOrigin-Name: 47ec8749470af7cab9f3ef15effce1a7ba79a654
 2009-06-23 11:22:29 +00:00
danielk1977
b980d2219f Remove a condition that is always true from btree.c. (CVS 6798) 
FossilOrigin-Name: 3ec8b37a89fdb2436d312439715414fae2cd20a8
 2009-06-22 18:03:51 +00:00
drh
27731d7c73 Make sure sqlite3BtreeCreateTable() returns an error code if the largest 
rootpage field is invalid in auto_vacuum mode.  Update file-format comments
to describe all of the "meta" values. (CVS 6797)

FossilOrigin-Name: bda38f5e86db45234c2dbb0f8d1a81f6ff6d04e4
 2009-06-22 12:05:10 +00:00
drh
fa9601a9a6 Move codec management from database connections into the pager so that it 
will work together with shared cache. (CVS 6782)

FossilOrigin-Name: ed08b53cd64c4ff2c94ef4e48441c5236041c9ca
 2009-06-18 17:22:39 +00:00
drh
b33e1b99b0 Reduce the minimum usable page space to 480 byte from 500 bytes. (CVS 6780) 
FossilOrigin-Name: db4fb835363c9c7e38c891e01188a6e2db88472d
 2009-06-18 11:29:20 +00:00
drh
042d6a1f0f Fix a potential segfault following database corruption. Problem 
made visible by check-in (6772). (CVS 6775)

FossilOrigin-Name: 69eb0ff817cff6266c53b79047bcff5e5d54b618
 2009-06-17 13:57:16 +00:00
drh
0d588bbc38 Suppress some -Wextra compiler warnings from GCC. (CVS 6774) 
FossilOrigin-Name: 59ec937ce226bbf6c48c5e0466d3bab48873c9ea
 2009-06-17 13:09:38 +00:00
danielk1977
11a8a8660c Fix a bug affecting secure-delete mode introduced by (6768). (CVS 6773) 
FossilOrigin-Name: a433ca821c134caeac0fa16416eb95c647416b95
 2009-06-17 11:49:52 +00:00
danielk1977
e576521d96 Fix for #3918. Also, fix the TRACE macros in balance_nonroot(). (CVS 6772) 
FossilOrigin-Name: 368e44ec2e648b04f3b817f82586ccd864e60c89
 2009-06-17 11:13:28 +00:00
danielk1977
4dbaa89005 Changes to balance_nonroot() and BtreeDelete() to simplify delete operations and reduce stack/heap usage while balancing b-tree structures. (CVS 6768) 
FossilOrigin-Name: 092b276e7d89bbfa3d8637a90ee5d458935a12a9
 2009-06-16 16:50:22 +00:00
danielk1977
cb55799952 Remove a duplicate assert from btree.c. Ticket #3915. (CVS 6765) 
FossilOrigin-Name: d89542cd8b2efaea7c6be6cd7787d183c55ae36a
 2009-06-16 04:31:49 +00:00
shane
8509570763 Fix compiler warnings with MSVC build. (CVS 6761) 
FossilOrigin-Name: e1e6430752449a34671b6c89326b03ac36ea6d9a
 2009-06-15 16:27:08 +00:00
drh
eac74428c1 Detect database corruption and abort balance_nonroot() before the 
corruption causes problems. (CVS 6758)

FossilOrigin-Name: 3448b39dcd580880a9326414e7e4952c4fbc313d
 2009-06-14 12:47:11 +00:00
danielk1977
e56b60ecb8 Minor tweak to balance_quick() to save a few instructions. (CVS 6743) 
FossilOrigin-Name: 9ace995910c8b0b9e95dc20fd70be487199e37af
 2009-06-10 09:11:06 +00:00
shane
75ac1de0ad Fix compiler warnings with MSVC build. (CVS 6741) 
FossilOrigin-Name: 0bd84e7387802c58c820369ff27ef54adbdf2e96
 2009-06-09 18:58:52 +00:00
drh
3b2a3fa42e Enable cell overflow checking in sqlite3BtreeInitPage() using the 
compile-time option SQLITE_ENABLE_OVERSIZE_CELL_CHECK.  Change the tests
so that they recognize different error messages depending on the setting
of this macro. (CVS 6735)

FossilOrigin-Name: 56bff6eb2fc5f0afbd96afc986671ec744bd40e1
 2009-06-09 13:42:24 +00:00
danielk1977
80929b3de9 Avoid calling fillInCell() to create an internal node intkey cell from balance_nonroot(). A single putVarint() does the same thing more quickly. (CVS 6734) 
FossilOrigin-Name: 2e5d42aeb40c3c6eea373a9ae3fbdf4e8087cd58
 2009-06-09 11:34:10 +00:00
drh
f061be9c6f Only do the cell overread checks in sqlite3BtreeInitPage if 
SQLITE_OVERREAD_CHECK is defined at compile-time. (CVS 6733)

FossilOrigin-Name: 49f544ebae8dc3cf7cf6189536c56ebb7d258a86
 2009-06-09 10:37:03 +00:00
danielk1977
6067a9bbfe Do not clear the MemPage.nFree variable when insertCell() adds an overflow cell to a page. Not doing this means balance_quick() can avoid a call to sqlite3BtreeInitPage(). (CVS 6732) 
FossilOrigin-Name: 8f1c1f61f7bc5270212725cf0a056872df983f49
 2009-06-09 09:41:00 +00:00
danielk1977
a50d9aa784 Change the btree balance code so that it does not call balance_nonroot() recursively. (CVS 6729) 
FossilOrigin-Name: 7863db904d6fc36417c923e3d135eb2c145b9013
 2009-06-08 14:49:45 +00:00
drh
acfc72bea4 Detect when database corruption causes an attemp to set the pointer map 
value for a pointer map page and report the corruption. (CVS 6722)

FossilOrigin-Name: 3ae4880bee3a0312c61cdd36f4fa50286cc2ef48
 2009-06-05 18:44:15 +00:00
drh
35cd643cc7 Take care that a corrupt variable-length integer does not cause 32-bit 
integer overflow when parsing a record format, nor cause excessively large
memory allocations. (CVS 6719)

FossilOrigin-Name: 38b20327a80996c7044b88be32161ac4ac0ec3a9
 2009-06-05 14:17:21 +00:00
drh
1662b5a6f9 Earlier detection of freelist corruption in the page allocation routines. (CVS 6718) 
FossilOrigin-Name: e557c8e5846f9c4eaaeb3bd07614ac101bb0b3d0
 2009-06-04 19:06:09 +00:00
drh
d46b6c23d3 Fix an assertion fault in balance_quick() that occurs when an interior 
btree node has zero cells due to database corruption.  Also update the
corrupt7.test result vectors for a couple of cases where the error report
on database corruption changed due to earlier detection. (CVS 6717)

FossilOrigin-Name: 1335e4440f5a3d24ce9ce187e0e23fc9b166ca98
 2009-06-04 17:02:51 +00:00
drh
c85240dbf6 If the root page of a btree is empty and is also not a leaf page and the 
page is not page 1, then report database corruption. (CVS 6716)

FossilOrigin-Name: 52b02ca5f3e5fdf2f3e02e9d8e016028d0842818
 2009-06-04 16:14:33 +00:00
danielk1977
6f235cc5de Reduce the stack usage of balance_quick(). (CVS 6715) 
FossilOrigin-Name: e7ad68e93b19b59cb16205c4b48fd9d6492dbb02
 2009-06-04 14:46:08 +00:00
drh
c5e47ac238 Fix two instances where a malformed header in a database file (in other words 
a corrupt database file) can lead to an assertion fault. (CVS 6712)

FossilOrigin-Name: 4e92c7f20afa51849128aa1d784ab885b517a73d
 2009-06-04 00:11:56 +00:00
drh
69e931e7bb Change the pcache1.c implementation so that the "header" occurs at the end 
of page buffer, not at the beginning.  This insures that the 20 bytes
immediately following the page buffer are mapped if a read of the page
buffer overruns due to a malformed cell. (CVS 6711)

FossilOrigin-Name: c54de1f54080de7e134d7b562498abb5337a0a46
 2009-06-03 21:04:35 +00:00
danielk1977
93c829c110 Add corruptD.test, a container for testing the "cell overflow" problem. Also shuffle a small amount of code in BtreeInitPage() to check that the page header pointer to the start of the cell offset array is set to a sane value. (CVS 6710) 
FossilOrigin-Name: 7fa5d3cb0fa05f7d901bcc139c2c037ce5944caa
 2009-06-03 17:26:17 +00:00
danielk1977
0d19f7ac57 Define a set of constants to use as the "index" argument to sqlite3BtreeGetMeta and UpdateMeta. This makes some parts of the code easier to follow. (CVS 6709) 
FossilOrigin-Name: 6dbf4eca00f845baa7200aba421d0bc158ba96aa
 2009-06-03 11:25:07 +00:00
danielk1977
4b0aa4cf3e Workaround the need for internal API sqlite3BtreeCursorDb(). It was only being used for an assert() statement, which can be done differently. (CVS 6683) 
FossilOrigin-Name: 5904af6e6df3effdaaa30e7cf96ee316fc09b28d
 2009-05-28 11:05:57 +00:00
shane
60a4b53823 Changes to silence compiler warnings under MSVC. (CVS 6613) 
FossilOrigin-Name: df599237e1ca8b4f361477a712cf761aa1fac3df
 2009-05-06 18:57:09 +00:00
danielk1977
11c327aabe Avoid parsing cells that fit entirely on the b-tree page when searching a b-tree index. (CVS 6601) 
FossilOrigin-Name: 77a8239548722f702ead9d7c60df0d68180948fb
 2009-05-04 19:01:26 +00:00
danielk1977
de630353d8 Speed up INSERT operations that add data to UNIQUE or PRIMARY KEY indexes by rationalizing duplicate seek operations. (CVS 6599) 
FossilOrigin-Name: cac4f3d812f0a02ca5c1fa78d366f694403929a8
 2009-05-04 11:42:29 +00:00
danielk1977
3f632d5bd2 When a cursor points at the last entry of an intkey btree after an insert, leave it there (instead of moving it to the tree root node). This speeds up statements of the form "INSERT INTO ... SELECT ..." that use auto-generated rowids. (CVS 6592) 
FossilOrigin-Name: 9950c0a79c82eb7d8495b0b1a8fe117d566e2387
 2009-05-02 10:03:09 +00:00
danielk1977
9c3acf3cfe Do not reset the cursor before seeking it in sqlite3BtreeInsert(). This speeds up INSERT operations that use auto-generated rowid values. (CVS 6591) 
FossilOrigin-Name: 20c4acc291def33980f584f882c76e85ee1c8238
 2009-05-02 07:36:49 +00:00
drh
b56cd55b9a Update PRAGMA integrity_check so that it treats SQLITE_IOERR_NOMEM errors 
from underlying components the same as SQLITE_NOMEM errors. (CVS 6587)

FossilOrigin-Name: 26444f2a4426d2e51464ef69ed83d3c78be2c11f
 2009-05-01 13:16:54 +00:00
drh
c47fd8e031 Disallow attaching the same database multiple times to the same db connection 
in shared cache mode, since doing so leads to deadlock. (CVS 6578)

FossilOrigin-Name: 715f14f1dcaf604d4794bf3e18e245d4f8c5d5a9
 2009-04-30 13:30:32 +00:00
danielk1977
d829335e42 When SQLite is configured to use in-memory temp files (either by setting SQLITE_TEMP_STORE during compilation or using the temp_store pragma at run time), store statement/savepoint journals in memory also. Ticket #3825. (CVS 6575) 
FossilOrigin-Name: 38f8c5a14cd221af9e115a0fea689f2ff39e30e5
 2009-04-30 09:10:37 +00:00
drh
c0b61810ed Remove always-true tests from attach.c. In btree.c, always test the return 
from sqlite3PagerSetPagesize() since it might return SQLITE_NOMEM. (CVS 6572)

FossilOrigin-Name: 8bf60b24ffcf6ac15f41eaa7f976b810e0c66734
 2009-04-30 01:22:41 +00:00
danielk1977
fad9194453 Modify the assemblePage() function in btree.c so that it runs slightly faster. (CVS 6569) 
FossilOrigin-Name: 7ec42e989f1d4abdc6d52f8feebf51985f36b2bd
 2009-04-29 17:49:59 +00:00
danielk1977
ae5558b2ae Add a version of cellSizePtr() that is faster than using sqlite3BtreeParseCellPtr(). This speeds up balance_nonroot(). (CVS 6566) 
FossilOrigin-Name: e8f7f7b787fe941093edaea44db4d361fad1e002
 2009-04-29 11:31:47 +00:00
danielk1977
7b801388f5 Simplify a conditional expression in btree.c. (CVS 6565) 
FossilOrigin-Name: fc3a5ac2353142082fe14d47f9c2b662407ea3f7
 2009-04-29 06:27:56 +00:00
drh
51898cf727 Update comments and remove unused code in btree.c. No functional changes. (CVS 6521) 
FossilOrigin-Name: bd860184909b7a9cc32c59770ebcee0efdc491f0
 2009-04-19 20:51:06 +00:00
danielk1977
e589a67f6c Fix a case where a corrupt database could cause an assert() to fail. (CVS 6496) 
FossilOrigin-Name: 2c560e057e1da8a603efc36deea036f2392a4ab9
 2009-04-11 16:06:15 +00:00
danielk1977
2a50ff0309 Always set BtShared.db when entering the BtShared mutex. Ticket #3793. (CVS 6480) 
FossilOrigin-Name: ed6620ba589ddbb6ca86f42a7652e3b019195647
 2009-04-10 09:47:06 +00:00
drh
8c5d152b53 Force 8-byte alignment of sqlite3_value objects in the 
sqlite3VdbeUnpackRecord() primitive.  Ticket #3777. (CVS 6479)

FossilOrigin-Name: 2cc68272b1f70701268075cfa82fa64bb2a8179d
 2009-04-10 00:56:28 +00:00
danielk1977
5d189858e9 Fix an incorrect assert in btree.c. (CVS 6465) 
FossilOrigin-Name: 2c1f59834ab7a16066ee12cb8a8342d438c23ce9
 2009-04-07 14:38:58 +00:00
danielk1977
ef165cedeb Test cases and minor code changes to increase coverage of btree.c. (CVS 6456) 
FossilOrigin-Name: def3a016914f683818b5f013ec4efecbb8fd4c0d
 2009-04-06 17:50:03 +00:00