From: drh <drh@noemail.net>
Date: Tue, 28 Jul 2020 17:29:13 +0000 (+0000)
Subject: If a writer crashes in WAL mode and leave the SHM file in an inconsistent state,
X-Git-Tag: version-3.33.0~37
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9044361a9a59ff73b3b938e34f2707917f18df4a;p=thirdparty%2Fsqlite.git

If a writer crashes in WAL mode and leave the SHM file in an inconsistent state,
subsequent transactions are now able to recover the SHM file even if there are
active read transactions.

FossilOrigin-Name: ee8a108058c304f9b6b02f84f1da01a0b7a3a21992627bcc1f97d42e8d23da69
---

9044361a9a59ff73b3b938e34f2707917f18df4a
diff --cc manifest
index 80b02e2e4b,ef7faf53dc..ac6aa6536a
--- a/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Remove\sa\ssurplus\sspace\sfrom\sa\scomment
- D 2020-07-24T11:01:29.118
 -C Add\san\ssqlite3FaultSim()\sto\smake\san\sOOM\scase\smore\saccessible\sand\sremove\nthe\sALWAYS()\son\sthe\sconditional\sthat\sis\sfalse\swhen\sthe\sOOM\sactually\soccurs.
 -D 2020-07-28T17:17:36.521
++C If\sa\swriter\scrashes\sin\sWAL\smode\sand\sleave\sthe\sSHM\sfile\sin\san\sinconsistent\sstate,\nsubsequent\stransactions\sare\snow\sable\sto\srecover\sthe\sSHM\sfile\seven\sif\sthere\sare\nactive\sread\stransactions.
++D 2020-07-28T17:29:13.292
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -1878,7 -1878,7 +1878,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 270ac1a0f232d75537be40abae559004e950b992cb2c7e94cd6de66e96ae17bd
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+ R 69a29ce092f5af857bcf59873f5056ae
++T +closed 2a251af84ff1f5ca281aa69c5410d6ae7aa5a85ef47149909a297525e1651e9d
  U drh
- Z 7c8911d20a18c22808c4eb3363f6ff12
 -Z e3e8c0f9a7476656806546b877310ca8
++Z f0509e0a6ac22a3eb269a4a65f129fe3
diff --cc manifest.uuid
index ef6483f2d6,083a662fb3..f9787d86e3
--- a/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 73fecc688ab5c459245c9bb89432139a083ef378404b4dae3397a7f4e253f72a
 -2a251af84ff1f5ca281aa69c5410d6ae7aa5a85ef47149909a297525e1651e9d
++ee8a108058c304f9b6b02f84f1da01a0b7a3a21992627bcc1f97d42e8d23da69