At the start of each write transaction, check to see if the database file has

been moved, and if it has refuse to start the transaction, returning an
SQLITE_READONLY_DBMOVED error code.

FossilOrigin-Name: 369a23e00644f3ff8b6a2d2ed73b8cb65e9f124b

diff --cc manifest
index 029d04e99437389d49fbca451cb6a4f12a23a6cb,af17b57a3f278d69651215d7d4514f2b5f4c3946..9d96e87ef35b1ea620bb952fad1baa2f6ebf9165
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Performance\soptimization\sto\sthe\smoveToRoot()\ssubroutine\sin\sbtree.c.
- D 2013-12-06T23:25:27.601
 -C Back\sout\sthe\snew\sdevice\scapability.\s\sThe\sdetermination\sof\swhether\sor\snot\sa\nfile\shas\smoved\sis\snow\sdone\sstrictly\susing\sa\sfile-control.
 -D 2013-12-07T16:45:05.762
++C At\sthe\sstart\sof\seach\swrite\stransaction,\scheck\sto\ssee\sif\sthe\sdatabase\sfile\shas\nbeen\smoved,\sand\sif\sit\shas\srefuse\sto\sstart\sthe\stransaction,\sreturning\san\nSQLITE_READONLY_DBMOVED\serror\scode.
++D 2013-12-07T16:56:09.769
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in e1a9b4258bbde53f5636f4e238c65b7e11459e2b
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1145,7 -1146,7 +1146,8 @@@ F tool/vdbe-compress.tcl f12c884766bd14
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh d1a6de74685f360ab718efda6265994b99bbea01
  F tool/win/sqlite.vsix 030f3eeaf2cb811a3692ab9c14d021a75ce41fff
- P c5a3a1af3c7bd34886e944a1fef2f6340ded24a0
- R 12065e363c2320b45db52efcb2788f0d
 -P 2b1884dc14f9a04a04eebb3245fbe0daaff399eb
 -R 4150eee10eaa0b472e8e9f4c3fd71eac
++P b5842a70f8e26456a8f0d39539bc266f097480a4 9c59f5af7ac4908583fab85d37241f200c40f02d
++R b5502e212abebd79211cbde2351c1e6b
++T +closed 9c59f5af7ac4908583fab85d37241f200c40f02d
  U drh
- Z 6564d15f297e6c8ddf25ac421a3f69fc
 -Z f90de22ca9080d17b19aebd5c1cb9da5
++Z aeb423432b55400118887674a2a0ba39

diff --cc manifest.uuid
index 5fac78a151727765267d8eb9309dd86a42036d98,d9c23f55bc4f221f6a3484a07c495c6c62b0bfed..c01ba35b0404f54e0b6bc65e4190856ba5228b25
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- b5842a70f8e26456a8f0d39539bc266f097480a4
 -9c59f5af7ac4908583fab85d37241f200c40f02d
++369a23e00644f3ff8b6a2d2ed73b8cb65e9f124b