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1ea6a53 Avoid writing frames with no checksums into the wal file if a savepoint is rolled back after dirty pages have already been spilled into the wal file. Possible fix for [forum:/forumpost/b490f726db | forum post b490f726db]. by dan · 5 weeks ago
140748f Fix harmless compiler warning introduced by the setlk-snapshot-fix merge. by drh · 7 weeks ago
ded1959 If blocking locks are enabled, avoid using the busy handler when blocked by another process running recovery. by dan · 7 weeks ago
b0c3118 Clarify and reduce redundancy in an assert() in walChecksumBytes(). by drh · 4 months ago
cebf06c Make use of the flexible-array feature of C99, when available, to try to by drh · 4 months ago
58bc525 Reinstate the assert() removed by [0f6223b8]. Avoid holding a wal-mode write lock after the transaction has been rolled back if an IO error occurs while restarting the wal file. by dan · 5 months ago
a4cf066 Remove an assert() added by [e88212b1] that is sometimes false. by dan · 5 months ago
b081a39 Merge latest changes from trunk into this branch. by dan · 5 months ago win32-enable-setlk
ef86b94 Code changes that make it easier to prove that no 32-bit integer overflows by drh · 5 months ago
df54ecb Fix a problem causing the write-lock to be held when it should not be in some circumstances following a SEH exception. by dan · 6 months ago
43aad25 Add the sqlite3_setlk_timeout() API. For setting the timeout used by SQLITE_ENABLE_SETLK_TIMEOUT blocking locks without also setting the regular retry-based busy-timeout. by dan · 6 months ago
2539fb2 Fix a race condition causing SQLite to use a busy-handler for an operation that should not. by dan · 6 months ago
32dd04b Code formatting changes to make trunk more like wal2. by drh · 7 months ago
276172e Remove unnecessary end-of-line whitespace. by drh · 7 months ago
624cb96 An assortment of comment typo fixes discovered by aspell. Add several new words to tool/custom.txt. No code changes. by stephan · 9 months ago
d0720ee When possible, avoid taking wal file read-lock 0 in sqlite3_snapshot_get(). by dan · 10 months ago
5600adf Move the vfstrace extension out of src/ over into ext/misc/ where it belongs. by drh · 10 months ago
5fdabcf Put an SQLITE_ENABLE_SETLK_TIMEOUT branch inside the appropriate ifdef with by drh · 1 year, 6 months ago
4e50f77 Ensure that SQLITE_PROTOCOL is not returned too early when a SQLITE_ENABLE_SETLK_TIMEOUT build fails to open a transaction on a wal mode database in cases where blocking locks are not being used. by dan · 1 year, 6 months ago enable-setlk-fix
f5740f7 Adjust the sqlite3PagerDirectReadOk() routine (part of the by drh · 1 year, 7 months ago
940b23b In SQLITE_ENABLE_SETLK_TIMEOUT builds, use blocking locks in place of sleep() calls when opening a read-transaction. by dan · 1 year, 8 months ago
b8950e0 Handle an SQLITE_BUSY_TIMEOUT error if one occurs while attempting a shared lock on a read-lock slot. by dan · 1 year, 8 months ago blocking-dms-lock
bae2d0f Have SQLITE_ENABLE_SETLK_TIMEOUT builds block when locking a read-lock slot. by dan · 1 year, 8 months ago
e52854a In SQLITE_ENABLE_SETLK_TIMEOUT builds, use blocking locks in place of sleep() when opening a read-transaction. by dan · 1 year, 8 months ago
91c8e65 Changes so that if SQLITE_ENABLE_SETLK_TIMEOUT is defined as 2 instead of 1, all blocking locks are taken for a single millisecond and the default busy-handler invoked as normal. by dan · 1 year, 8 months ago
0ad5301 Avoid blocking as part of passive checkpoint operations, even if SQLITE_ENABLE_SETLK_TIMEOUT is defined. by dan · 1 year, 8 months ago
36a9f5c Fix a possible UAF in SEH if an exception occurs at an inopportune moment by drh · 1 year, 11 months ago
9541fbc Fix a problem in sqlite3_snapshot_recover() introduced by the [8a6b0c24937e855b] merge. by dan · 1 year, 11 months ago
5e22dfb Add a comment describing the contents of the ExceptionInformation[] array for win32 EXCEPTION_IN_PAGE_ERROR exceptions. No changes to code. by dan · 2 years ago
5202b7c Update the latest trunk enhancements into the wal-shm-exceptions branch. by drh · 2 years ago
8a11049 Reduce divergence between branches: trunk and wal-shm-exceptions. by drh · 2 years ago
66422b5 Get fault injection for testing working correctly. Other code clean-up. by drh · 2 years ago
5d3cc0c Fix a warning. Unclear yet if the code is correct this way or not. by drh · 2 years ago
cc9380f Merge the latest trunk enhancements into the wal-shm-exceptions branch. by drh · 2 years ago
ff96718 Merge all recent trunk enhancements into the wal-shm-exceptions branch. by drh · 2 years ago
55be216 Fix straggler misspellings and tidy the custom dictionary. Also include pickups from [forum:/info/c61fb09afd|forum post c61fb09afd]. by larrybr · 2 years, 1 month ago spell-check
bc91738 Add a C-source spell-checking facility. make misspell (on Nix) by larrybr · 2 years, 1 month ago
dda2833 Add a comment to the [0512f82a2cde7447] change to link it to its TH3 test case. by drh · 2 years, 3 months ago
ce2aa8b If the page size is wrong on the page1 content inside a WAL file, then by drh · 2 years, 3 months ago
3f4a319 Unwrap the loop in the WAL hash function. by drh · 2 years, 3 months ago
fc7f8f8 Back out the optimization at [1a8c2e54375ee2cf7] because there are some by drh · 3 years ago
3325a5c Size reduction and performance optimization in sqlite3WalFindFrame(). by drh · 3 years, 1 month ago
f208abd A better and more robust fix for the problem of reading a read-only WAL by drh · 3 years, 6 months ago
d6b44ec Fix the ability to read read-only WAL-mode database when -shm is present, by drh · 3 years, 6 months ago
e574a92 Fixes to internal comments. No changes to code or documentation. by drh · 3 years, 8 months ago
eaad533 Ensure that all possible outcomes for walIndexPage() are accounted for by by drh · 3 years, 9 months ago wal-tuneup
71c3ea7 Avoid the 1-based indexing on the WalHashLoc.aPgno[] array. Make it 0-indexed by drh · 3 years, 9 months ago
5f25627 Improve the comment on walIndexPage() to more accurately describe the by drh · 3 years, 9 months ago
9023444 If an EXCEPTION_IN_PAGE_ERROR exception is caught, make the underlying OS error code available via sqlite3_system_errno(). by dan · 3 years, 10 months ago
ee7c667 Change the structuree exception handler in wal.c to catch EXCEPTION_IN_PAGE_ERROR instead of EXCEPTION_ACCESS_VIOLATION. by dan · 3 years, 11 months ago
67ae593 Use VVA_ONLY() instead of TESTONLY() in SEH macros so that the build by drh · 4 years ago
5b6c3c8 Add missing SEH_INJECT_FAULT macros. by dan · 4 years ago
c6effdb Add some assert() statements and fix small issues with code on this branch. by dan · 4 years ago
b15c63c Fix a problem on this branch causing checkpoints that do not proceed because they can't get the CHECKPOINT lock to return incorrect output values. by dan · 4 years ago
aecd7f9 Enable this branch to run both with and without the -DSQLITE_USE_SEH option. by drh · 4 years ago
8aa22ff If SQLITE_USE_SEH is defined, handle structured-exceptions thrown by MSVC builds if the *-shm file mapping is accessed after it becomes invalid for some reason. by dan · 4 years ago
f873392 Enhance the wal.c source file with an ASCII-art schematic of the -shm file by drh · 4 years ago
944d85d Fix an error in one of the assert() statements added by [23b08fe9db24a953]. by drh · 4 years ago
fd4c786 Improve comments and add new assert() statements in WAL to help document by drh · 4 years ago
0449f65 Fix a harmless "unused variable" warning when compiling with by drh · 4 years, 3 months ago
91faeec Modify a test for corruption within the wal checkpoint code to account for the pending-byte page. And for the fact that test configurations might move the pending-byte page. by dan · 5 years ago
799443b Do the oversize-WAL corruption test before the size hint is issued. by drh · 5 years ago
88819d5 Return an SQLITE_CORRUPT error if the final expected size of the database when checkpointing is not reasonable - where reasonable is defined (basically) as the sum of the sizes of the database and wal files. by dan · 5 years ago
e592c18 Provide an alternative "guaranteed-safe" method for overwriting the WAL index by drh · 5 years ago
8deae5a Fix signed/unsigned compiler warnings. by drh · 5 years ago
e7f3edc Add an sqlite3FaultSim() to make an OOM case more accessible and remove by drh · 5 years ago unlocked-recovery
f31230a On recovery, always overwrite the old with the new, even if they are the same. by drh · 5 years ago
8caebb2 Improved error reporting if walLockExclusive() fails. by drh · 5 years ago
d3e38b7 Allow a wal mode recovery to proceed even if there are readers. by dan · 5 years ago
4ffaa7c Passive checkpoints do not use the busy-handler. So, in order to minimize visible changes for legacy applications, do not enable blocking locks for passive checkpoints. by dan · 5 years ago wal-setlk-changes
ec206a7 Use AtomicStore() to set values in the wal-index hash table. by dan · 5 years ago
91960aa Make sure variable declarations are at start of scope even when by drh · 5 years ago
5a8cd2e Add compiler hints to disable TSAN for the routines that access the -shm by drh · 5 years ago
f16cf65 In wal.c, improved comments on concurrency issues. More use of by drh · 5 years ago
d924e7b Use the sqlite3Realloc() interface internally, rather than the public by drh · 5 years ago
8b4f231 Use AtomicStore() and AtomicLoad() in a few more places to avoid a theoretically undefined behaviour. This is not actually problem on any known hardware. by dan · 5 years ago
bc9fc18 Fix an assert() failure that could follow an IO error. by dan · 5 years ago
783e159 Fix harmless compiler warnings. by drh · 5 years ago
7bb8b8a Add error code SQLITE_BUSY_TIMEOUT, used internally by the OS layer to indicate that a call to xShmLock() has failed due to timeout of a blocking lock. by dan · 5 years ago
fc87ab8 Fix compiler warnings in non-SQLITE_ENABLE_SETLK_TIMEOUT builds. by dan · 5 years ago
861fb1e Block on the WRITER lock when attempting to run recovery. by dan · 5 years ago
d0e6d13 Add tests for running recovery when opening a write transaction or performing a checkpoint with blocking locks enabled. Fix some failing assert() statements. by dan · 5 years ago
58021b2 Unless upgrading an existing read transaction, have ENABLE_SETLK_TIMEOUT builds attempt to use a blocking lock when opening a write transaction on a wal mode database. by dan · 5 years ago
8714de9 Changes to avoid deadlock in SQLITE_ENABLE_SETLK_TIMEOUT builds. by dan · 5 years ago
fcf31b2 Add the SQLITE_FCNTL_CKPT_START file-control. Use it to optimize the by drh · 5 years ago ckpt-start-fcntl
892edb6 Use __atomic_load_n() and __atomic_store_n() for a few more things where they are available. by dan · 5 years ago
3e42b99 Fix "GCC_VESRION" typo in wal.c. by dan · 5 years ago
97ccc1b Modifications to the way blocking locks are used in SQLITE_ENABLE_SETLK_TIMEOUT builds so that multiple processes or threads may not deadlock when operating on a single database. by dan · 5 years ago setlk-deadlock-fix
b48c0d5 Simplify the code by removing the unsupported and undocumented by drh · 5 years ago
1d7d8c8 Add the SQLITE_FCNTL_CKPT_DONE file-control for the use of custom VFSs. by dan · 6 years ago
2ecf928 More details on the comment justifying the aleged data race in the WAL-mode by drh · 6 years ago
55f66b3 Add new assert() statements in an attempt to help static analyzers avoid by drh · 6 years ago
680f0fe Small performance and size optimization in sqlite3WalFindFrame(). by drh · 6 years ago
f6ad201 Fixes for harmless compiler warnings. by drh · 6 years ago
b92d7d2 Add a defense-in-depth NEVER() test to the WAL cleanup code. by drh · 6 years ago
8741d0d Fix a harmless compiler warning that arose from the ENABLE_CURSOR_HINTS by drh · 7 years ago
8d4b7a3 If a call to sqlite3_snapshot_open() fails because the requested snapshot no by dan · 7 years ago
876c7ea Try to identify the places in WAL code where thread-safety depends on the by drh · 7 years ago
f577875 Fix a problem causing spurious SQLITE_CORRUPT errors when using the snapshot by dan · 7 years ago
588032f Allow sqlite3_snapshot_open() to be called to change the snapshot after a read by dan · 7 years ago