Commit Graph

22 Commits

Author SHA1 Message Date
drh
fa079680f1 Slight adjustment to test results for Windows in mmap1.test due to
the previous check-in.

FossilOrigin-Name: 5cf9ea9b1fff4625a50a2343d0fd3812da6612d6b24c07e10edb6c1ff03ca2df
2024-01-23 21:10:01 +00:00
dan
bcf3df0192 In os_unix.c and os_win.c, do not allow xFetch() to return a pointer to a page buffer that is right at the end of the mapped region - if the database is corrupted in a specific way such a page buffer might be overread by several bytes.
FossilOrigin-Name: 2684feac3bc9c5463604900d72710be861527614f4957224c74a16a3b3c702f5
2024-01-23 16:09:22 +00:00
dan
a32536b498 Fix the zeroblob() function and related APIs so that they work with SQLITE_OMIT_INCRBLOB builds.
FossilOrigin-Name: bc401a75dd9f3c29c5969ae36264e68ccefc0937e44e232ca1f6b550f7fd6e22
2021-11-08 19:35:26 +00:00
dan
202a0274db Minor fixes for problems revealed by releasetest.tcl.
FossilOrigin-Name: 1a8aedc3376b7ae32fa7b2c367eedd483e2629908836efd10ee5bd1fe0784675
2018-09-07 11:51:21 +00:00
mistachkin
1e8487db29 In the Win32 VFS, when truncating a file, unmap it first.
FossilOrigin-Name: 21510a66dce4d0843ccfe20f092a01f5a52563ef244a94f1d5d2563305cab925
2018-07-22 06:25:35 +00:00
drh
7da56b4f65 Many more test cases fixed. Only a few remain.
FossilOrigin-Name: 99b9d7eef68fd6d5c9eecb5fbe3dfe002c1ca4a8
2016-03-14 18:34:42 +00:00
dan
be7721d103 Avoid running some particularly time-consuming tests as part of veryquick.test.
FossilOrigin-Name: f465944b75a800ddc6920229ad32c2f39ff91e19
2016-02-04 17:31:03 +00:00
mistachkin
fdece7bad1 Skip tests that require WAL mode when it is not enabled.
FossilOrigin-Name: 6fc4ead26d19b9348bbda34c3053ae1e066abc32
2014-11-04 19:52:15 +00:00
dan
cf8489fe2f Add extra "PRAGMA mmap_size = N" statements to mmap1.test and mmap2.test.
FossilOrigin-Name: cec0a06c17435d5a35e76b52d6901ecda98f9916
2013-05-17 12:25:00 +00:00
dan
5b04dc517a Several releasetest.tcl related fixes to test cases. No code changes.
FossilOrigin-Name: e97d744ba1138e6c4c1fc657c32f4391ea7479f1
2013-05-16 14:28:47 +00:00
dan
f054396b38 Fix mmap1.test so that it passes on windows as well as unix.
FossilOrigin-Name: 52417eac3ecaec2dbbde170334358f5ddbd32501
2013-04-29 09:17:42 +00:00
drh
9b4c59fa1b Refactoring the mmap interface. The controlling pragma is now "mmap_size"
instead of "mmap_limit".  Also change SQLITE_CONFIG_MMAP_LIMIT and
SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and
SQLITE_FCNTL_MMAP_SIZE, respecctively.  
The default mmap_size is now always 0, meaning that
memory mapped I/O is off by default.  There is a new compile-time option
SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size.
Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic
and causes it to be omitted from the build.  An extra argument is added
to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE
at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we 
know that it does not work, meaning that it cannot be turned on by mistake
on those platforms.

FossilOrigin-Name: ea1404a10abd7f68e1f8e0708c8a3199d1f79665
2013-04-15 17:03:42 +00:00
drh
188d488409 Disable the use of memory-mapped I/O if the SQLITE_DISABLE_MMAP macro is
defined.  Automatically define this macro for OpenBSD and QNX.  Other
systems are likely to be added to the disabled list over time.

FossilOrigin-Name: 8a4314a398c6c6efb25e6993c826b7e60d9bb1f9
2013-04-08 20:47:49 +00:00
dan
ced9813b12 Add further multi-client tests to mmap1.test.
FossilOrigin-Name: a107f75d93b8acd3403d8473a75137378041a833
2013-04-04 19:32:53 +00:00
drh
34f7490311 Change the mmap_limit pragma to report the new limit, or to report the
existing limit if called with no arguments.  Report the default mmap_limit
as part of PRAGMA compile_options.  Set the default mmmap_limit to 0 for
all systems other than linux, mac, windows, and solaris.

FossilOrigin-Name: 2d9f1327fe79e40435ce1e2594d7cd9a5aea0ef2
2013-04-03 13:09:18 +00:00
dan
f7679ad19e When moving a page to make way for the root page of a new table or index in an auto-vacuum database, save the positions of any cursors that may be holding xFetch references to the page being moved.
FossilOrigin-Name: 9d9b1da54a555e8fb6037d63d1952458c12956d2
2013-04-03 11:38:36 +00:00
dan
227a1c482c In btree.c, save the positions of other cursors open on the same table when writing via an incremental blob handle. Otherwise, they may be left holding an out-of-date xFetch page reference.
FossilOrigin-Name: 3f09fba18f7e61e21381ffea13c31b968efd7d77
2013-04-03 11:17:39 +00:00
drh
c3d53189fc Adjustments to mmap1.test so that it works better on windows. It still gets
some answers wrong, but it no longer crashes.

FossilOrigin-Name: ee8d3ceeec40d84adb8798f084b6f1215ab56d92
2013-04-02 20:29:33 +00:00
dan
db082408c6 Add test cases to mmap1.test and pagerfault.test.
FossilOrigin-Name: 3050136be962427cc4dcced6077ef29b2a941405
2013-04-02 18:33:55 +00:00
drh
0d0614bdc6 Memory-mapped I/O is now on by default. The "PRAGMA mmap_limit(N)" can be
used to issue a hint to the VFS to limit mmap space to N bytes.  The VFS
is free to ignore that hint if desired.  However, if "PRAGMA mmap_limit(0)"
is used, xFetch is never called.

FossilOrigin-Name: 1b37c4effdd03aa2ea938a71b4f22ed27391689b
2013-03-25 23:09:28 +00:00
dan
9d56c6df9a Fix a case where a checkpoint operation could write to an invalid part of a memory mapped region.
FossilOrigin-Name: 8dbe89d05ce91428c69003f0da79d883fa23e2b5
2013-03-23 14:20:42 +00:00
dan
eecc398374 Add test file mmap1.test.
FossilOrigin-Name: aee1f53a74e636776cbbc11bdd5516432ad50533
2013-03-20 10:07:43 +00:00