Rework the oo1.DB's distinct-per-VFS post-open() step to accept either a batch of SQL or a callback function. Increase OPFS's busy timeout to 10s.
FossilOrigin-Name: 9feefe253ac487cb52be6bdf91bdd305963266716baa08f2bf9505954ee76321
This commit is contained in:
stephan
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bb4e4a4840
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@ -78,8 +78,10 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
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}.bind({counter: 0}));
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/**
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A map of sqlite3_vfs pointers to SQL code to run when the DB
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constructor opens a database with the given VFS.
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A map of sqlite3_vfs pointers to SQL code or a callback function
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to run when the DB constructor opens a database with the given
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VFS. In the latter case, the call signature is (theDbObject,sqlite3Namespace)
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and the callback is expected to throw on error.
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*/
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const __vfsPostOpenSql = Object.create(null);
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@ -160,15 +162,6 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
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capi.sqlite3_trace_v2(pDb, capi.SQLITE_TRACE_STMT,
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__dbTraceToConsole, 0);
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}
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// Check for per-VFS post-open SQL...
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const pVfs = capi.sqlite3_js_db_vfs(pDb);
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//console.warn("Opened db",fn,"with vfs",vfsName,pVfs);
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if(!pVfs) toss3("Internal error: cannot get VFS for new db handle.");
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const postInitSql = __vfsPostOpenSql[pVfs];
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if(postInitSql){
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rc = capi.sqlite3_exec(pDb, postInitSql, 0, 0, 0);
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checkSqlite3Rc(pDb, rc);
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}
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}catch( e ){
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if( pDb ) capi.sqlite3_close_v2(pDb);
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throw e;
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@ -178,12 +171,34 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
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this.filename = fnJs;
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__ptrMap.set(this, pDb);
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__stmtMap.set(this, Object.create(null));
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try{
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// Check for per-VFS post-open SQL/callback...
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const pVfs = capi.sqlite3_js_db_vfs(pDb);
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if(!pVfs) toss3("Internal error: cannot get VFS for new db handle.");
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const postInitSql = __vfsPostOpenSql[pVfs];
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if(postInitSql instanceof Function){
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postInitSql(this, sqlite3);
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}else if(postInitSql){
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checkSqlite3Rc(
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pDb, capi.sqlite3_exec(pDb, postInitSql, 0, 0, 0)
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);
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}
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}catch(e){
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this.close();
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throw e;
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}
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};
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/**
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Sets SQL which should be exec()'d on a DB instance after it is
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opened with the given VFS pointer. This is intended only for use
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by DB subclasses or sqlite3_vfs implementations.
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opened with the given VFS pointer. The SQL may be any type
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supported by the "flexible-string" function argument
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conversion. Alternately, the 2nd argument may be a function, in
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which case it is called with (theOo1DbObject,sqlite3Namespace) at
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the end of the DB() constructor. The function must throw on
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error, in which case the db is closed and the exception is
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propagated. This function is intended only for use by DB
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subclasses or sqlite3_vfs implementations.
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*/
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dbCtorHelper.setVfsPostOpenSql = function(pVfs, sql){
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__vfsPostOpenSql[pVfs] = sql;
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@ -1163,24 +1163,27 @@ const installOpfsVfs = function callee(options){
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OpfsDb.prototype = Object.create(sqlite3.oo1.DB.prototype);
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sqlite3.oo1.DB.dbCtorHelper.setVfsPostOpenSql(
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opfsVfs.pointer,
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[
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function(oo1Db, sqlite3){
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/* Set a relatively high default busy-timeout handler to
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help OPFS dbs deal with multi-tab/multi-worker
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contention. */
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sqlite3.capi.sqlite3_busy_timeout(oo1Db, 10000);
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sqlite3.capi.sqlite3_exec(oo1Db, [
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/* Truncate journal mode is faster than delete for
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this vfs, per speedtest1. That gap seems to have closed with
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Chrome version 108 or 109, but "persist" is very roughly 5-6%
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faster than truncate in initial tests. */
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"pragma journal_mode=persist;",
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/* Set a default busy-timeout handler to help OPFS dbs
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deal with multi-tab/multi-worker contention. */
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"pragma busy_timeout=5000;",
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/*
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This vfs benefits hugely from cache on moderate/large
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speedtest1 --size 50 and --size 100 workloads. We currently
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rely on setting a non-default cache size when building
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sqlite3.wasm. If that policy changes, the cache can
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be set here.
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speedtest1 --size 50 and --size 100 workloads. We
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currently rely on setting a non-default cache size when
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building sqlite3.wasm. If that policy changes, the cache
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can be set here.
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*/
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//"pragma cache_size=-16384;"
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].join("")
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"pragma cache_size=-16384;"
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], 0, 0, 0);
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}
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);
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}
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@ -61,7 +61,7 @@
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urlArgsHtml.has('verbose') ? +urlArgsHtml.get('verbose') : 1
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) || 1;
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options.interval = (
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urlArgsHtml.has('interval') ? +urlArgsHtml.get('interval') : 750
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urlArgsHtml.has('interval') ? +urlArgsHtml.get('interval') : 1000
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) || 1000;
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options.iterations = (
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urlArgsHtml.has('iterations') ? +urlArgsHtml.get('iterations') : 10
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16
manifest
16
manifest
@ -1,5 +1,5 @@
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C Minor\sinternal\stweaks\sto\sthe\sOPFS\sVFS.\sResolve\sa\smissing\sresult\scode\swhich\slead\sto\sa\snull\sderef\sin\sxFileSize().
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D 2022-12-02T18:56:37.557
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C Rework\sthe\soo1.DB's\sdistinct-per-VFS\spost-open()\sstep\sto\saccept\seither\sa\sbatch\sof\sSQL\sor\sa\scallback\sfunction.\sIncrease\sOPFS's\sbusy\stimeout\sto\s10s.
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D 2022-12-03T01:59:03.165
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
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@ -504,13 +504,13 @@ F ext/wasm/api/post-js-header.js 47b6b281f39ad59fa6e8b658308cd98ea292c286a68407b
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F ext/wasm/api/sqlite3-opfs-async-proxy.js f79dd8d98ef3e0b55c10bb2bee7a3840fa967318e1f577c156aafc34664271d1
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@ -557,7 +557,7 @@ F ext/wasm/tester1-worker.html ead6bdcc6cca221deb0dc9855a56f376351dbf2294fd7978c
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@ -2065,8 +2065,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
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R c08d64a2fd44c82ec1d52c0b8202d402
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U stephan
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Z 379ecd060fe213536d8ac858396e84c5
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Z 36a132ccc79fdf9c5e77fe15b521856c
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# Remove this line to create a well-formed Fossil manifest.
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@ -1 +1 @@
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57dd593ef0efa17dfb3a9f4eac36d5b8b879e271de817d8cd94a8c8b56d31870
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9feefe253ac487cb52be6bdf91bdd305963266716baa08f2bf9505954ee76321
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