Reimplement fiddle_reset_db() so that it works with all VFSes.

FossilOrigin-Name: 18462052903bfeb037dd9af3a1fe1898d141eff5d6f527721858120553de808d

diff --git a/ext/wasm/fiddle/fiddle-worker.js b/ext/wasm/fiddle/fiddle-worker.js
index ef2e3fcb5b00fccae6aface7e2d59b7cbc5e588d..f78a4d3be1c32e2245c053bfee091faa8d6336af 100644 (file)
--- a/ext/wasm/fiddle/fiddle-worker.js
+++ b/ext/wasm/fiddle/fiddle-worker.js
@@ -208,14 +208,8 @@
       }
     },
     resetDb: function f(){
-      if(Sqlite3Shell.dbIsOpfs()){
-        /* The problem is that fiddle_reset_db() uses the POSIX APIs
-           for file removal, which cannot see OPFS-hosted files. */
-        stderr("TODO: cannot currently reset an OPFS-hosted db.");
-        return;
-      }
       if(!f._) f._ = sqlite3.capi.wasm.xWrap('fiddle_reset_db', null);
-      stdout("Resetting database.",fixmeOPFS);
+      stdout("Resetting database.");
       f._();
       stdout("Reset",this.dbFilename());
     },

diff --git a/manifest b/manifest
index 1e61d92d7eac818f33d927a9fdfc0e2c8373cb46..11baf122fc704c1d9ddd46fc8c861f468ba3ce1a 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Experimentally\srelinquish\sthe\sOPFS\sVFS\ssync\saccess\shandle\swhen\sthe\sdb\sis\sidle\sand\sreacquire\sit\son\sdemand,\sthe\sgoal\sbeing\sto\shelp\salleviate\scross-tab\slocking\sissues.
-D 2022-10-03T11:33:35.536
+C Reimplement\sfiddle_reset_db()\sso\sthat\sit\sworks\swith\sall\sVFSes.
+D 2022-10-03T11:42:45.345
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -505,7 +505,7 @@ F ext/wasm/demo-kvvfs1.html 7d4f28873de67f51ac18c584b7d920825139866a96049a49c424
 F ext/wasm/demo-kvvfs1.js 105596bd2ccd0b1deb5fde8e99b536e8242d4bb5932fac0c8403ff3a6bc547e8
 F ext/wasm/fiddle.make 3f4efd62bc2a9c883bfcea52ae2755114a62d444d6d042df287f4aef301d6c6c
 F ext/wasm/fiddle/emscripten.css 3d253a6fdb8983a2ac983855bfbdd4b6fa1ff267c28d69513dd6ef1f289ada3f
-F ext/wasm/fiddle/fiddle-worker.js ebf6e95fe031738cd9f79d1ccdf6d80640a2884a43f7006a5e3459995f93069b
+F ext/wasm/fiddle/fiddle-worker.js 531859a471924a0ea48afa218e6877f0c164ca324d51e15843ed6ecc1c65c7ee
 F ext/wasm/fiddle/fiddle.html 5daf54e8f3d7777cbb1ca4f93affe28858dbfff25841cb4ab81d694efed28ec2
 F ext/wasm/fiddle/fiddle.js 974b995119ac443685d7d94d3b3c58c6a36540e9eb3fed7069d5653284071715
 F ext/wasm/index.html 63b370619e4f849ac76f1baed435c05edc29dbb6795bc7c1c935561ff667dd27
@@ -618,7 +618,7 @@ F src/random.c 546d6feb15ec69c1aafe9bb351a277cbb498fd5410e646add673acb805714960
 F src/resolve.c efea4e5fbecfd6d0a9071b0be0d952620991673391b6ffaaf4c277b0bb674633
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
 F src/select.c bb18acf4eded647fef88d4d543c673874dbebff516fbeba90a85e6c13f2a58cd
-F src/shell.c.in 2980312ab57fc5ccf298d1f0682588ec3832f52a878bea8abe34647d2cf31d05
+F src/shell.c.in 1c3c4694470c1f61d667a96b29ffa8036d34391efbbdd251692b06f34b46e393
 F src/sqlite.h.in b9b7fd73239d94db20332bb6e504688001e5564b655e1318a4427a1caef4b99e
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h a988810c9b21c0dc36dc7a62735012339dc76fc7ab448fb0792721d30eacb69d
@@ -2029,8 +2029,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 5c43e8d2ec23f28fdce63874d9d4c8ccbb4a8f81030b19d65ff5711a7c32697e
-R 1a27bfc63f0ef541783eed07221dd339
+P 2703ac9842335962e488e597168d70b1389b95a6ad39edf70a211b95979b4708
+R 0bcb919ac67ff690a464f41cfdc2aecd
 U stephan
-Z 39513e5d3a3cf9877958a5d88a7ecd20
+Z 78ecb20703c7cf55fa5a9c67c82bb309
 # Remove this line to create a well-formed Fossil manifest.

diff --git a/manifest.uuid b/manifest.uuid
index 4f33119d842d5f2b7bfa2c322b67fa090e73d2fb..ccfe9b233bb76979c407bf5cf47c01178c44556d 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-2703ac9842335962e488e597168d70b1389b95a6ad39edf70a211b95979b4708
\ No newline at end of file
+18462052903bfeb037dd9af3a1fe1898d141eff5d6f527721858120553de808d
\ No newline at end of file

diff --git a/src/shell.c.in b/src/shell.c.in
index cd3fe88cd58c7e43c4adaa0299da1dca441a793a..7b68b8512ff32d7df8421a8a3a1f5764e52cdbb6 100644 (file)
--- a/src/shell.c.in
+++ b/src/shell.c.in
@@ -12680,26 +12680,15 @@ const char * fiddle_db_filename(const char * zDbName){
 }
 
 /*
-** Closes, unlinks, and reopens the db using its current filename (or
-** the default if the db is currently closed). It is assumed, for
-** purposes of the fiddle build, that the file is in a transient
-** virtual filesystem within the browser.
+** Completely wipes out the contents of the currently-opened database
+** but leaves its storage intact for reuse.
 */
 void fiddle_reset_db(void){
-  char *zFilename = 0;
-  if( 0==globalDb ){
-    shellState.pAuxDb->zDbFilename = shellState.wasm.zDefaultDbName;
-  }else{
-    zFilename =
-      sqlite3_mprintf("%s", sqlite3_db_filename(globalDb, "main"));
-    shell_check_oom(zFilename);
-    close_db(globalDb);
-    shellDeleteFile(zFilename);
-    shellState.db = 0;
-    shellState.pAuxDb->zDbFilename = zFilename;
-  }
-  open_db(&shellState, 0);
-  sqlite3_free(zFilename);
+  if( globalDb ){
+    int rc = sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
+    if( 0==rc ) rc = sqlite3_exec(globalDb, "VACUUM", 0, 0, 0);
+    sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
+  }
 }
 
 /*