Have sqlite3_setlk_timeout() take the database handle mutex. This fixes an assert() failure that could occur if sqlite3_setlk_timeout() were called on a threadsafe handle.

FossilOrigin-Name: a95d126e1330e1b83f42b51f97c4c216622cf38062f3b5d72ccb76313187e850

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\sproblem\swith\sUPDATEs\son\sfts5\stables\sthat\scontain\sblob\svalues.
-D 2025-06-11T15:03:53.627
+C Have\ssqlite3_setlk_timeout()\stake\sthe\sdatabase\shandle\smutex.\sThis\sfixes\san\sassert()\sfailure\sthat\scould\soccur\sif\ssqlite3_setlk_timeout()\swere\scalled\son\sa\sthreadsafe\shandle.
+D 2025-06-12T07:35:38.259
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -749,7 +749,7 @@ F src/insert.c d05934dfab2c5c0c480fc6fd2038f11215661de08ea6ff38d2563216bd555c1b
 F src/json.c cb87977b1ee25ee7d27505d65a9261b687395bf895342c8ba566b7c01aee2047
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c d7edd8e671237539d795d30daaf888908a2c82e99bade4c78f3be021e8b7d655
-F src/main.c 07f78d917ffcdf327982840cfd8e855fd000527a2ea5ace372ce4febcbd0bf97
+F src/main.c eb46066bf2f0bec2dd89229572de5a9c479c47da134e2422e7a0056e9510cbee
 F src/malloc.c 410e570b30c26cc36e3372577df50f7a96ee3eed5b2b161c6b6b48773c650c5e
 F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
 F src/mem1.c 3bb59158c38e05f6270e761a9f435bf19827a264c13d1631c58b84bdc96d73b2
@@ -2033,7 +2033,7 @@ F test/walro2.test 33955a6fd874dd9724005e17f77fef89d334b3171454a1256fe4941a96766
 F test/walrofault.test c70cb6e308c443867701856cce92ad8288cd99488fa52afab77cca6cfd51af68
 F test/walseh1.test bae700eb99519b6d5cd3f893c04759accc5a59c391d4189fe4dd6995a533442b
 F test/walsetlk.test 9079cd8ef82570b8cf0067f31e049a72bec353fb2d5f0cc88f1736dc42ba9704
-F test/walsetlk2.test 9097083633cdf55bf1098b694fb8651d0356d38fef28b869481d18029d7ceaf4
+F test/walsetlk2.test 4a67823b1e759ac5a4fe78a83c1f857c3c5761bf8d755421c8b55907957f23dd
 F test/walsetlk3.test 1b82bd92dea7e58f498b4399b0b3d26773dd8ac5c74205ce4a23c207cb8e85fe
 F test/walsetlk_recover.test adccbffc59e365063a4efd2da6b661ae2fcf15d775b6719fe46acd87face08ff
 F test/walsetlk_snapshot.test 86d5588380f9927d8fcbbd75133b0a34fddf959378d6823c6f164a390123f70a
@@ -2208,8 +2208,8 @@ F tool/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd7227350
 F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
 F tool/warnings.sh 1ad0169b022b280bcaaf94a7fa231591be96b514230ab5c98fbf15cd7df842dd
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 80a78987da484d435a8242c05c48d546d430920df713b24a9d9d9fff7ba1113d
-R 510b491b43028ef63e4d71d106a233de
+P badf3014bd1620fd3d4b8013f641fd820b249649fb93cc75b7b8df9dfd6f32a6
+R 7fdf393495e0e2303824909fb18b2ec1
 U dan
-Z 204a2d57183fa1bb384706745d513233
+Z 94b5809cfbb11f003ae05c3735568843
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-badf3014bd1620fd3d4b8013f641fd820b249649fb93cc75b7b8df9dfd6f32a6
+a95d126e1330e1b83f42b51f97c4c216622cf38062f3b5d72ccb76313187e850

src/main.c

@@ -1861,6 +1861,7 @@ int sqlite3_setlk_timeout(sqlite3 *db, int ms, int flags){
 #endif
   if( ms<-1 ) return SQLITE_RANGE;
 #ifdef SQLITE_ENABLE_SETLK_TIMEOUT
+  sqlite3_mutex_enter(db->mutex);
   db->setlkTimeout = ms;
   db->setlkFlags = flags;
   sqlite3BtreeEnterAll(db);
@@ -1872,6 +1873,7 @@ int sqlite3_setlk_timeout(sqlite3 *db, int ms, int flags){
     }
   }
   sqlite3BtreeLeaveAll(db);
+  sqlite3_mutex_leave(db->mutex);
 #endif
 #if !defined(SQLITE_ENABLE_API_ARMOR) && !defined(SQLITE_ENABLE_SETLK_TIMEOUT)
   UNUSED_PARAMETER(db);

test/walsetlk2.test

@@ -90,6 +90,8 @@ tvfs delete
 # but other operations do not use the retry mechanism.
 #
 reset_db
+db close
+sqlite3 db test.db -fullmutex 1
 
 do_execsql_test 2.0 {
   CREATE TABLE t1(a, b);