Add a new sqlite3FaultSim() to btree for better fault analysis.

FossilOrigin-Name: 2c675bd30568d3c530300beb3fcfaa17c9f063cdcb9a39ac68b9902100f641a6

manifest

@@ -1,5 +1,5 @@
-C Add\ssupport\sfor\sthe\s".testctrl\sfault_install"\sdot-command\sin\sthe\sCLI\swhen\nlaunched\swith\sthe\s--unsafe-testing\soption.
-D 2024-02-12T13:28:10.404
+C Add\sa\snew\ssqlite3FaultSim()\sto\sbtree\sfor\sbetter\sfault\sanalysis.
+D 2024-02-12T14:44:35.288
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -678,7 +678,7 @@ F src/auth.c 19b7ccacae3dfba23fc6f1d0af68134fa216e9040e53b0681b4715445ea030b4
 F src/backup.c 5c97e8023aab1ce14a42387eb3ae00ba5a0644569e3476f38661fa6f824c3523
 F src/bitvec.c 9eac5f42c11914d5ef00a75605bb205e934f435c579687f985f1f8b0995c8645
 F src/btmutex.c 79a43670447eacc651519a429f6ece9fd638563cf95b469d6891185ddae2b522
-F src/btree.c bf659f4b1622c120ec6a863ba96c63f1861595ca21124950d977cec1477dd922
+F src/btree.c dfd351decf9f819393dae8fb7294cae69c3818069d27f47fee34d5b505e37b47
 F src/btree.h 03e3356f5208bcab8eed4e094240fdac4a7f9f5ddf5e91045ce589f67d47c240
 F src/btreeInt.h 3e2589726c4f105e653461814f65857465da68be1fac688de340c43b873f4062
 F src/build.c 05c9eb387638982092988d2ef4c00a91b0c29baa1b85923f082ce0cf2903ea7e
@@ -2162,8 +2162,9 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P f023cb541b5dd72c996f0574210344179217666a2229bc8d3fe057fdbc5c2245
-R c8236513dfcf0ef943c428e779c4a525
+P 5ba7fee1a9b49df82387e355d2ab7de58663d3fa824e50717608b27e0f7ac874 e0558f79b8184ea6741fb20b710dab854f5bdb71aa47d5a6701eeb7389540c8c
+R 0edcf4f3ab18268eaee9147c5810abce
+T +closed e0558f79b8184ea6741fb20b710dab854f5bdb71aa47d5a6701eeb7389540c8c
 U drh
-Z 58d2be401311d1f16e9ad87e4e189606
+Z b0ed70b83eb4a1ec81d9b2beb169bda8
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-5ba7fee1a9b49df82387e355d2ab7de58663d3fa824e50717608b27e0f7ac874
+2c675bd30568d3c530300beb3fcfaa17c9f063cdcb9a39ac68b9902100f641a6

src/btree.c

@@ -5128,9 +5128,12 @@ static int accessPayload(
       if( pCur->aOverflow==0
        || nOvfl*(int)sizeof(Pgno) > sqlite3MallocSize(pCur->aOverflow)
       ){
-        Pgno *aNew = (Pgno*)sqlite3Realloc(
-            pCur->aOverflow, nOvfl*2*sizeof(Pgno)
-        );
+        Pgno *aNew;
+        if( sqlite3FaultSim(413) ){
+          aNew = 0;
+        }else{
+          aNew = (Pgno*)sqlite3Realloc(pCur->aOverflow, nOvfl*2*sizeof(Pgno));
+        }
         if( aNew==0 ){
           return SQLITE_NOMEM_BKPT;
         }else{