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98aa1d735eb80f90b4523f50c17fc965ce967c79
Commit Graph

395 Commits

Author SHA1 Message Date
drh
80fbee092e Improved comments. No logical changes to code. 
FossilOrigin-Name: a6b6c6c466f3feb257b4fc08ef6b9a27a68ca073
 2016-03-21 11:57:13 +00:00
drh
8d2f41ccd2 Do a better job of capturing all system errno values regardless of when 
they occur.

FossilOrigin-Name: 7d49998d571d841a6d1b55f5f9889e613daaab2a
 2016-03-21 11:38:01 +00:00
drh
1b9f2141a7 Experimental implementation of the sqlite3_system_errno() interface. 
FossilOrigin-Name: 6782c87b3722fbd09684a5b1e5df05247956f1c6
 2016-03-17 16:01:23 +00:00
drh
ecdf20d3a4 Use #ifdefs to remove code that is unreachable in some configurations, replacing 
it with an assert().

FossilOrigin-Name: f96ec84d605fd73c323344a753acf35b76307af9
 2016-03-10 14:28:24 +00:00
drh
14bfd99143 Fix an incorrect #ifdef on sqlite3LogEstToInt(). 
FossilOrigin-Name: dca7b23354a6b08c926b6ed3f7345d942a409862
 2016-03-05 14:00:09 +00:00
drh
6f17c09fcf Fix an assert() in sqlite3VarintLen(), even though it is impossible to hit 
in SQLite due to the way sqlite3VarintLen() is used.

FossilOrigin-Name: 251424c5869f43012fc1e1a545de362036b883db
 2016-03-04 21:18:09 +00:00
drh
94eaafa9ce Reduce the amount of heap required to store many schemas by storing each 
column datatype appended to the column name, rather than as a separate
allocation.

FossilOrigin-Name: 842b21162713bb141b845b01c136457a31af4ab0
 2016-02-29 15:53:11 +00:00
drh
d566c95179 Change the "PRAGMA stats" command to report size values in LogEst units. 
The eliminates the need for sqlite3LogEstToInt() unless non-standard
compile-time options are used, so leave it out except in those cases.

FossilOrigin-Name: 832c237fcbe83dd4f5a18a06acb0aeb7e2b9e712
 2016-02-25 21:19:03 +00:00
drh
469753d949 Add an SQLITE_DISABLE_INTRINSIC #ifdef to the sqlite3Put4Byte() function. 
FossilOrigin-Name: ba9c6827d0890aaed9168c221fefbdbe89f4f9d3
 2016-02-19 13:20:02 +00:00
drh
80738d9c3e Improvements to the application-defined function mechanism so that it is 
more compact and runs faster, especially when the application defines
thousands of new SQL functions.

FossilOrigin-Name: 3201fbcc5105d23132e6b8b7ac825e66af4f8a39
 2016-02-15 00:34:16 +00:00
drh
575fad6500 Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority 
cases where db is guaranteed to be not NULL.

FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
 2016-02-05 13:38:36 +00:00
drh
40aced5c65 Add the sqlite3TokenInit() utility function. 
FossilOrigin-Name: 7323175337b7ba85ac932ca892b28860f6a5b688
 2016-01-22 17:48:09 +00:00
drh
62aaa6ca88 Fix over-length source code lines. No logic changes. 
FossilOrigin-Name: 198d191b2f5ef7d63ac0093c701955c9052fd734
 2015-11-21 17:27:42 +00:00
drh
59a5364cf9 Performance improvement in sqlite3VarintLen(). 
FossilOrigin-Name: adf9fefb00ae1dbb07a921c6796cb0a9505c6d19
 2015-09-01 22:29:07 +00:00
mistachkin
60e0807801 Add SQLITE_DISABLE_INTRINSIC define to disable use of intrinsic functions (e.g. for certain older compilers and/or platforms). 
FossilOrigin-Name: f0075d735a76ce326619b6ba7f0d556e492f1c41
 2015-07-29 21:47:39 +00:00
mistachkin
f156c9b684 Enable use of the __builtin_bswap32() only with GCC 4.3 and higher. 
FossilOrigin-Name: 030f60a7ba171650ce8c0ac32dc166eab80aca32
 2015-07-03 17:54:49 +00:00
mistachkin
647ca46fc5 Make use of the _byteswap_ushort() and _byteswap_ulong() compiler intrinsics for MSVC, when available. 
FossilOrigin-Name: fe144dd73f7097a17c24c7812c2a1cc40466e6da
 2015-06-30 17:28:40 +00:00
drh
329428e208 Remove the use of htonl() in the previous check-in due to linkage issues. 
Add the get2byteAligned() macro and use it for access to the cell offsets
on btree pages for about a 1% performance gain.

FossilOrigin-Name: 79ff36b7170c9e7e7a9935c8b9d1665867771087
 2015-06-30 13:28:18 +00:00
drh
5372e4d4f9 Make use of htonl() and <nowiki>__builtin_bswap32()</nowiki> for faster 
implementations of sqlite3Get4byte() and sqlite3Put4byte().

FossilOrigin-Name: bc27ebd7f73e9fc8e00da6ec82632e439fcce812
 2015-06-30 12:47:09 +00:00
drh
1116bf1359 Implement sqlite3Strlen30() using strlen() from the C library. 
FossilOrigin-Name: 8001aa52bd12f900092387fe3571463e89efd977
 2015-06-30 03:18:33 +00:00
drh
935f2e7074 Disregard leading zeros when converting strings to 32-bit integers. 
FossilOrigin-Name: 691cc201e135a01c4cc4057be7e5d99285ab392d
 2015-04-18 04:45:00 +00:00
drh
0ede9ebec7 Improvements to compile-time-option hygiene. Use "#if OPTION" instead of 
"#ifdef OPTION" in cases where that makes sense, so that -DOPTION=0 will work.
Add the "Have-Not" configuration in releasetest.tcl which disables all of
the "HAVE_component" compile-time options.

FossilOrigin-Name: 9e92a5ed5aaba20461ed4ce8359d6e34e7773d68
 2015-01-10 16:49:23 +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
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
2f2b2b8580 Performance enhancement in sqlite3PutVarint(). 
FossilOrigin-Name: a929be551924144c9bc7aab608404d59e479abb5
 2014-08-22 18:48:25 +00:00
drh
13f40da31d Split the sqlite3Error() routine into sqlite3Error() and 
sqlite3ErrorWithMsg(), for a slight size reduction and performance increase.

FossilOrigin-Name: cf561d1f0bb60b3d638632d20bd686dda4fa4a04
 2014-08-22 18:00:11 +00:00
drh
9296c18a50 Change the hex literal processing so that only the SQL parser understands 
hex literals.  Casting and coercing string literals into numeric values does
not understand hexadecimal integers.  This preserves backwards compatibility.
Also:  Throw an error on any hex literal that is too big to fit into 64 bits.

FossilOrigin-Name: 6c6f0de59bf96b79c8ace8c9bfe48c7a6a306a50
 2014-07-23 13:40:49 +00:00
drh
fce4da1b73 Test cases for hex literals. 
FossilOrigin-Name: 19054339c47448bcdfd1f7be35daa3826c409077
 2014-07-23 01:56:32 +00:00
drh
28e048c618 Add support for parsing C-style hexadecimal literals. 
FossilOrigin-Name: 34a1f38b7a23c64f5c6e5b34c19a20480be53961
 2014-07-23 01:26:51 +00:00
drh
c007f61bb0 Repurpose the SQLITE_TESTCTRL_FAULT_INSTALL test-control to register a 
callback to be invoked by sqlite3FaultSim().  That test-control has been
unused since 2008-06-20 and was never used in any official release.

FossilOrigin-Name: 0d43a7ad9abe821e33e0bf83a997aa4461b1e3f2
 2014-05-16 14:17:01 +00:00
drh
224155dd1c Fix long-standing typos in comments. 
FossilOrigin-Name: b9f91317c34d07769a95dc2f905a6ccabceb64a3
 2014-04-30 13:19:09 +00:00
drh
53a6eb3f3c Faster implementation for sqlite3MulInt64(). 
FossilOrigin-Name: 010c48f671e909cb406f3716102a0032bc72a592
 2014-02-10 12:59:15 +00:00
drh
693e671936 Fixes for various clang warnings. 
FossilOrigin-Name: 87bf60637e5863c54c5e2d05aaaca0835b7aace8
 2014-01-24 22:58:00 +00:00
drh
a3cc007df4 Simplication and optimization of error message handling. 
FossilOrigin-Name: 9d347f547e7ba9590b0c68edf50a14ad94a2bb92
 2013-12-13 16:23:55 +00:00
drh
47676fedf6 Fix two potential (and apparently harmless) shift overflows discovered by 
the -fcatch-undefined-behavior option of clang.

FossilOrigin-Name: e19eead8c9977ed4f00eac54c5bc7e90db78caa8
 2013-12-05 16:41:55 +00:00
drh
a256c1a4b3 Fix typos in the header comment on the sqlite3Atoi64() routine. 
FossilOrigin-Name: c85e0c546ea6c6be46deea5c7a716b5fb553c7b4
 2013-12-01 01:18:29 +00:00
drh
de1a8b8c69 Change the REAL-to-INTEGER casting behavior so that if the REAL value 
is greater than 9223372036854775807.0 then it is cast to the latest
possible integer, 9223372036854775807.  This is sensible and the way
most platforms work in hardware.  The former behavior was that oversize
REALs would be cast to the smallest possible integer, -9223372036854775808,
which is the way Intel hardware works.

FossilOrigin-Name: 6f53fc7106658d44edf63068f9a8522fa5a7688b
 2013-11-26 15:45:02 +00:00
drh
bf539c4d5c Begin an experimental refactoring to estimate the average number of bytes 
in table and index rows and to use that information in query planner.
Begin by renaming WhereCost to LogEst and making that type and its
conversion routines available outside of where.c.

FossilOrigin-Name: 66c4a251d61582b47d5cbe50cbca160a9209bd06
 2013-10-05 18:16:02 +00:00
drh
9ccd8659ff Change the PRAGMA parser to use a binary search for the pragma name. 
Also:  Minor performance enhancement to sqlite3DbFree() and to the
token dequoter.

FossilOrigin-Name: 870c030b4e1854e6e0d39907fadbd82774c16f56
 2013-09-13 16:36:46 +00:00
drh
12886632c6 Adjustment to an extreme corner case in the sqlite3Atoi64() routine. 
FossilOrigin-Name: 39534b4baa53b9360696a9d5ee8cc2108af34592
 2013-03-28 11:40:14 +00:00
drh
0e5fba790a Fix text-to-numeric type casting so that it works correctly on UTF16 
strings that contain characters where the LSB is numeric but the MSB
is non-zero.  Ticket [689137afb6da41]

FossilOrigin-Name: 5b22053f918d16f593227a432a5d5b4c195bb0b5
 2013-03-20 12:04:29 +00:00
drh
89f15088f0 Improved rounding accuracy on test-to-float conversions. 
FossilOrigin-Name: 699b792c6a0e989994549959b11ec1bfad8bbd92
 2012-06-19 00:45:16 +00:00
drh
0299b40f0f Add additional test cases to e_insert.test. Update evidence marks. 
no changes to core code.

FossilOrigin-Name: 036395c0a8e08883b11df025e3da9e2461e4b1eb
 2012-03-19 17:42:46 +00:00
drh
3fa9730273 Change the SQLITE_FCNTL_PRAGMA file-control so that it can return a string 
value.

FossilOrigin-Name: fd8d7440277b17f57a6dc0a210f42adf1fa2dcd2
 2012-02-22 16:58:36 +00:00
drh
c02a43afae Only require double-zero terminators on database filenames, not any every 
files supplied to the xOpen method.  This backs out [2544f233f1].  Also
refactor the fillInUnixFile() routine in os_unix.c to reduce the number
of parameters.

FossilOrigin-Name: cb774b26e13745cfad0d76a71e47466d703e0007
 2012-01-10 23:18:38 +00:00
drh
e025d9a096 Fix an incorrect assert() on the sqlite3FileSuffix3() function. 
FossilOrigin-Name: 24db54bd49ed91c74a9797faca02df2d39553240
 2012-01-05 18:33:40 +00:00
drh
52bcde0e2d Make sure filenames passed into sqlite3OsOpen() always have the extra 
zero-terminators needed by sqlite3_uri_parameter().

FossilOrigin-Name: d73e93cfdc9441ade77b796dcdcf6eeb753cb398
 2012-01-03 14:50:45 +00:00
drh
7d39e17eef Fix the build so that it works when SQLITE_ENABLE_8_3_NAMES=1. 
FossilOrigin-Name: d9761f15a175724c6c28a52335c979304737b188
 2012-01-02 12:41:53 +00:00
drh
9291372094 Add interfaces sqlite3_uri_boolean() and sqlite3_uri_int64() which are 
wrappers around sqlite3_uri_parameter() combined with internal routines for
converting strings to booleans and 64-bit integers.

FossilOrigin-Name: 83d26b9a9115eadac9e59a33d608bca0ab2519e3
 2011-12-23 00:07:33 +00:00
drh
f580860f51 Make sure the antipenultimate character of master-journal filenames is a "9" 
in order to avoid collisions with other files in 8+3 filename mode.  Also,
limit the number of attempts at finding a unique master-journal filename.

FossilOrigin-Name: 34a0483605d36e6cf03065ed0df33fb1f7c8a272
 2011-12-16 00:33:04 +00:00