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version-3.33.0
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46 Commits

Author SHA1 Message Date
drh 08b9208660 Fix harmless compiler warnings that surface in newer versions of GCC. 
FossilOrigin-Name: 9d670a318381f219b467653f5f9539097808b887ae37291ce13be462dedfb18d
 2020-08-10 14:18:00 +00:00
drh cf014f6cbd Refactor names. Use "small" instead of "mini" to describe the smaller 
of the two lookaside memory allocation sizes.

FossilOrigin-Name: 88d244983854cdc1a369c5df09ae00f1098784db768ba4e17b963d187dcb1009
 2019-12-31 15:12:34 +00:00
drh e6068027ca Cleanup and performance enhancements for mini-lookaside. 
FossilOrigin-Name: 74805668430051032ae9b256c84e252755ee03075fc08293c948675ed40ec280
 2019-12-13 15:48:21 +00:00
numist 115d663c05 More efficient implementation of a lookaside allocator that supports mini (in this case, harcoded to 128B) slots. 
FossilOrigin-Name: b02fdc09c838f355d9efce57f817d6a86153153b4a1f2b763914f4aaa34cb76e
 2019-12-12 02:50:07 +00:00
drh ffc78a41ea Add the SQLITE_DBSTATUS_CACHE_SPILL option to sqlite3_db_status() 
FossilOrigin-Name: 3faeb851374471a6f94a6fab3a62c73d03330eae6fc72cd1a277b03ad12dcdd0
 2018-03-14 14:53:50 +00:00
drh 52fb8e1945 Faster memory allocation from lookaside by not trying to keep track of the 
number of outstanding allocations, and rather computing that value only
when requested.

FossilOrigin-Name: a06263f1efd2d45eac88b8d59e8fe8e458670fa3808c795feaa7f247fc36cbe9
 2017-08-29 20:21:12 +00:00
drh b2a0f75c06 Remove the rarely-used scratch memory allocator. This makes the code smaller, 
faster, and easier to maintain.  In place of the scratch allocator, add the
SQLITE_CONFIG_SMALL_MALLOC configuration option that provides a hint to SQLite
that large memory allocations should be avoided.

FossilOrigin-Name: 54b000246cfb5c7b8adb61a17357ef5a49adddde9e48e8937834d5ba0beb8a6b
 2017-08-28 15:51:35 +00:00
drh 38b802dfd7 Fix harmless compiler warnings in sqlite3_status(). 
FossilOrigin-Name: 7c38a79cdd42aaa45715aea330d10ca859098837
 2016-08-02 08:45:26 +00:00
dan 9c10608a26 Change the name of the SQLITE_DBSTATUS_PROPORTIONAL_CACHE_USED to SQLITE_DBSTATUS_CACHE_USED_SHARED. 
FossilOrigin-Name: d58401ab26c7c5417eb7d540f47d11c4e49edcb2
 2016-07-06 18:12:54 +00:00
dan 272989b44d Add the SQLITE_DBSTATUS_PROPORTIONAL_CACHE_USED sqlite3_db_status() parameter. 
FossilOrigin-Name: 118321c8b9d88b8f439c952436f42838c3fc80cb
 2016-07-06 10:12:02 +00:00
mistachkin 7ef855f156 Alternate compiler warning fix for sqlite3StatusHighwater. 
FossilOrigin-Name: 4315d20200d578c9252dcb26e60739063a8eff1d
 2015-10-22 18:06:40 +00:00
drh 039ca6ab59 Performance optimizations to the sqlite3MallocSize() by requiring the 
argument to always be non-NULL.

FossilOrigin-Name: cb65989b0710c65e4df69063b346344fdb1d12c7
 2015-10-15 16:20:57 +00:00
drh b02392e6f0 Change sqlite3StatusSet() into sqlite3StatusHighwater() so that only the 
highwater mark is recorded.  This gives a small size reduction and
performance improvement.

FossilOrigin-Name: 6422d223dd10018703c6b083d29a3c35c837fc97
 2015-10-15 15:28:56 +00:00
drh 4756404847 Suppress a compiler warning that was appearing with SQLITE_THREADSAFE=0. 
FossilOrigin-Name: 436314b5728c9413f9ac2d837e1c19364f31be72
 2015-03-24 18:19:39 +00:00
drh 2493870d9c Fix a non-C89 variable declaration that causes problems for MSVC. 
FossilOrigin-Name: 3de085eab2fbe491f2242b340851e8af8f61ad13
 2015-03-23 19:16:30 +00:00
drh 2b4905c81f Add the SQLITE_PTRSIZE macro. Use it to help sqlite3_status() run faster 
on 32-bit systems.

FossilOrigin-Name: c742bd6047bc6d0319a5a8c31d97f6b9229507f6
 2015-03-23 18:52:56 +00:00
drh af89fe66ea Add the sqlite3_status64() interface. Make the new interface and the legacy 
sqlite3_status() both atomic and threadsafe.  Check threadsafety using
assert()s.

FossilOrigin-Name: 1ce8e8fa4b866aafa12b1da0eb4d02321af9293e
 2015-03-23 17:25:18 +00:00
drh 9ca95730e3 Add the SQLITE_ENABLE_API_ARMOR compile-time option. This is a work in 
progress and is not yet completely functional.

FossilOrigin-Name: c297a84bc678f81ffc0aa9139ab73f0ca87c1971
 2014-10-24 00:35:58 +00:00
drh 79f7af9a9e Add requirements marks on the sqlite3_db_status() interface implementation. 
Fix a typo in the documentation.  Fix the new sqlite3_result_text64() routine
so that it works correctly with an encoding parameter of SQLITE_UTF16.

FossilOrigin-Name: d2fc322728331ae2d147c8496129df5e3c655eb5
 2014-10-03 16:00:51 +00:00
drh 648e264342 Add the "defer_foreign_keys" pragma and the SQLITE_DBSTATUS_DEFERRED_FKS 
value for sqlite3_db_status().  This is a cherry-pick of a sequence of five
checkins in the sessions branch between [1d44e5d3c2] and [d39e65fe70].

FossilOrigin-Name: 527121ac3cdc96ac33ad975c227a6685a2f7e999
 2013-07-11 15:03:32 +00:00
mistachkin 70cb28fc0e Adjust the SQLITE_DBSTATUS_STMT_USED calculation to take the modified usage of sqlite3VdbeClearObject() into account. 
FossilOrigin-Name: 82eb7eadb8c76b3af8c811d791f87a634c35935f
 2012-11-06 20:39:11 +00:00
drh cb103b9274 Make sure all virtual table cursors have been closed on a prepared statement 
prior to unlinking the perpared statement from its database connection.

FossilOrigin-Name: f7c5abe8739090db0738d2c7002a0d71f76c927e
 2012-10-26 00:11:23 +00:00
drh 9ad3ee40f2 Add SQLITE_DBSTATUS_CACHE_WRITE. Used to query a database connection for the cumulative number of database pages written. 
FossilOrigin-Name: 05f98d4eec0f029b76fd471f8d9edf2807de6b55
 2012-03-24 20:06:14 +00:00
dan 58ca31c905 Add the SQLITE_DB_STATUS_CACHE_HIT and MISS options. For querying the number of cache hits and misses on a per-connection basis. 
FossilOrigin-Name: 5100b6e9dc5107f0f835d0aac26fe6d4938ffc73
 2011-09-22 14:41:16 +00:00
drh 2120608e0f Add a description of access rules for the Schema object and lots of asserts 
to verify that the access rules are followed.

FossilOrigin-Name: ae8374af057b6e6546e9265148cfffe32fcb0849
 2011-04-04 18:22:02 +00:00
drh 0b12e7f860 Add additional DBSTATUS options for measuring the hit and miss rates against 
the lookaside memory pool - information useful in tuning the lookaside size.
Currently experimental pending analysis of performance impact.

FossilOrigin-Name: 34613f1dc54c638531ca2f5907b71fbe8841233e
 2010-12-20 15:51:58 +00:00
drh 81ba7d16b7 Fix a bug in the SQLITE_STATUS_MALLOC_COUNT counter. Add an ALWAYS() around 
a condition in the SQLITE_DBSTATUS_SCHEMA_USED logic that is always true.

FossilOrigin-Name: 6df081adbfa581c477bd2c96bb3f7f44be131a8f
 2010-07-26 19:09:31 +00:00
drh eafc43b156 Add the SQLITE_STATUS_MALLOC_COUNT option for sqlite3_status(). 
FossilOrigin-Name: 8f8e442b3af553753e25c304efa289b626e3a227
 2010-07-26 18:43:40 +00:00
dan 111becfbc0 When calculating schema memory, use the actual allocated size of hash elements, not sizeof(HashElem). Also fix a bug in dbstatus.test 
FossilOrigin-Name: e327ef37faec52ce99591266160be2ce2d577cc3
 2010-07-26 15:57:01 +00:00
dan eb8603a7c4 Remove an assert() that uses a variable removed earlier. 
FossilOrigin-Name: c04907e69820bd19f647c5f555327e0058db4e6d
 2010-07-26 12:36:29 +00:00
dan d19c933e8e Change the way SubProgram objects are deleted so that the code is the same for deletion and measurement. 
FossilOrigin-Name: 00e55102a8309eb6df08ad4a8937ba02688bac62
 2010-07-26 12:05:17 +00:00
drh 643f35e4a6 Update comments to better documentation the new memory measurement functions. 
FossilOrigin-Name: 620bad035755449c4e6a762f01ef2b1d9e521c7c
 2010-07-26 11:59:40 +00:00
dan d46def77db Experimental code to measure memory consumed by database schemas and prepared statements. 
FossilOrigin-Name: 9aa30342f4de4eff630520ea8e07ad253d3f0877
 2010-07-24 11:28:28 +00:00
dan 2339f06714 Make the sqlite3_db_status() routine threadsafe. 
FossilOrigin-Name: 241f7bd190329fa02ca428651072a4a206132eab
 2010-07-22 17:55:40 +00:00
drh 63da089314 Add the SQLITE_DBSTATUS_CACHE_SIZE verb for sqlite3_db_status(). The 
highwater mark does not yet work on this verb.

FossilOrigin-Name: 418c6d8113bc337556b0d47acfd6a7d865d1121f
 2010-03-10 21:42:07 +00:00
drh 413c3d36a2 Continuing improvements to error reporting and the sqlite3_log() routine. 
FossilOrigin-Name: edea3bb740ddd096a46e00678b59d465bb1e2903
 2010-02-23 20:11:56 +00:00
drh c81c11f62c Remove the obsolete "$Id:$" RCS identifier strings from the source code. 
FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
 2009-11-10 01:30:52 +00:00
drh 78f82d1e6c Continuing work on adding full support for the SQLITE_OMIT_WSD 
compile-time option. (CVS 5658)

FossilOrigin-Name: ef26ea5c46d3915d206f8ff7f82a24f4c8955f1f
 2008-09-02 00:52:52 +00:00
drh 93ed56d9ea Revise the initialization and shutdown logic so that it no longer keeps 
a recursive mutex allocated for the whole interval but instead releases
the mutex as soon as possible.  Do not reset status values upon initialization. (CVS 5559)

FossilOrigin-Name: 697fe7a3167c22a3232ce154e9d47cf75af613c4
 2008-08-12 15:21:11 +00:00
drh e50135e26d Add SQLITE_STATUS_PAGECACHE_SIZE and SQLITE_STATUS_SCRATCH_SIZE. (CVS 5537) 
FossilOrigin-Name: c4e9b824062ba82a8db01cd82e3e681de1940208
 2008-08-05 17:53:22 +00:00
drh 6480aad473 Test cases for sqlite3_db_config() and sqlite3_db_status(). (CVS 5518) 
FossilOrigin-Name: 6a6b94302acdfe6404b04bff1cc8d16c1ef69df9
 2008-08-01 16:31:14 +00:00
drh 633e6d57d9 Implement the "lookaside" memory allocation cache. Use of this cache makes 
the speed1.test script run about 15% faster.  Added new interfaces to
control the cache. (CVS 5488)

FossilOrigin-Name: e48f9697e9fea339e150ddc32940760027dd07d9
 2008-07-28 19:34:53 +00:00
drh ec424a5be6 Add the capability to track the maximum depth of the LALR(1) parser stack 
so that critical applications can check to see if they are getting close
to limits. (CVS 5481)

FossilOrigin-Name: ef0250f3dc769a4acd534f31fa06d90922d4145b
 2008-07-25 15:39:03 +00:00
drh 34004cebb6 Additional test coverage for the btree module. Remove the failsafe() macro 
and replace it with ALWAYS() and NEVER(). (CVS 5395)

FossilOrigin-Name: d7e2f0d2d45574d6191c1b191c0daf5260696f27
 2008-07-11 16:15:17 +00:00
drh 22c2403a1c Begin adding the failsafe() macro. (CVS 5383) 
FossilOrigin-Name: 8aae4fe7e702b7636fba1fd609a0ca22fdcc3371
 2008-07-09 13:28:53 +00:00
drh c4b18b827d Check in the missing status.c source file. (CVS 5245) 
FossilOrigin-Name: 298113d4a707ecf59d5dfd8bca45bfe734fb9fbb
 2008-06-19 13:20:01 +00:00