mirror of https://github.com/gorhill/uBlock.git
Fine-tune cache storage related-code
Related discussion:
https://github.com/uBlockOrigin/uBlock-discussions/discussions/876
Related commit:
086766a924
This commit is contained in:
Raymond Hill
parent
4d88b5121c
commit
7590c0711d
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@ -56,6 +56,7 @@ const hiddenSettingsDefault = {
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blockingProfiles: '11111/#F00 11010/#C0F 11001/#00F 00001',
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cacheStorageAPI: 'unset',
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cacheStorageCompression: true,
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cacheStorageCompressionThreshold: 65536,
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cacheStorageMultithread: 2,
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cacheControlForFirefox1376932: 'no-cache, no-store, must-revalidate',
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cloudStorageCompression: true,
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@ -58,6 +58,19 @@ const shouldCache = bin => {
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return out;
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};
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const missingKeys = (wanted, inbin, outbin) => {
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inbin = inbin || {};
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const found = Object.keys(inbin);
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Object.assign(outbin, inbin);
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if ( found.length === wanted.length ) { return; }
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const missing = [];
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for ( const key of wanted ) {
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if ( outbin.hasOwnProperty(key) ) { continue; }
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missing.push(key);
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}
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return missing;
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};
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/*******************************************************************************
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*
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* Extension storage
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@ -68,11 +81,10 @@ const shouldCache = bin => {
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const cacheStorage = (( ) => {
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const LARGE = 65536;
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const compress = async (key, data) => {
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const isLarge = typeof data === 'string' && data.length >= LARGE;
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const µbhs = µb.hiddenSettings;
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const isLarge = typeof data === 'string' &&
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data.length >= µbhs.cacheStorageCompressionThreshold;
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const after = await scuo.serializeAsync(data, {
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compress: isLarge && µbhs.cacheStorageCompression,
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multithreaded: isLarge && µbhs.cacheStorageMultithread || 0,
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@ -80,40 +92,39 @@ const cacheStorage = (( ) => {
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return { key, data: after };
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};
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const decompress = async (key, data) => {
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if ( scuo.canDeserialize(data) === false ) {
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return { key, data };
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}
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const isLarge = data.length >= LARGE;
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const after = await scuo.deserializeAsync(data, {
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multithreaded: isLarge && µb.hiddenSettings.cacheStorageMultithread || 0,
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const decompress = async (bin, key) => {
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const data = bin[key];
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if ( scuo.isSerialized(data) === false ) { return; }
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const µbhs = µb.hiddenSettings;
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const isLarge = data.length >= µbhs.cacheStorageCompressionThreshold;
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bin[key] = await scuo.deserializeAsync(data, {
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multithreaded: isLarge && µbhs.cacheStorageMultithread || 0,
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});
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return { key, data: after };
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};
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return {
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name: 'browser.storage.local',
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get(arg) {
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const keys = arg;
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return cacheAPI.get(keysFromGetArg(arg)).then(bin => {
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if ( bin !== undefined ) { return bin; }
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return extensionStorage.get(keys).catch(reason => {
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ubolog(reason);
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get(argbin) {
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const outbin = {};
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const wanted0 = keysFromGetArg(argbin);
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return cacheAPI.get(wanted0).then(bin => {
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const wanted1 = missingKeys(wanted0, bin, outbin);
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if ( wanted1 === undefined ) { return; }
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return extensionStorage.get(wanted1).then(bin => {
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const wanted2 = missingKeys(wanted1, bin, outbin);
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if ( wanted2 === undefined ) { return; }
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if ( argbin instanceof Object === false ) { return; }
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if ( Array.isArray(argbin) ) { return; }
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for ( const key of wanted2 ) {
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if ( argbin.hasOwnProperty(key) === false ) { continue; }
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outbin[key] = argbin[key];
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}
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});
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}).then(bin => {
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if ( bin instanceof Object === false ) { return bin; }
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}).then(( ) => {
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const promises = [];
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for ( const key of Object.keys(bin) ) {
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promises.push(decompress(key, bin[key]));
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for ( const key of Object.keys(outbin) ) {
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promises.push(decompress(outbin, key));
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}
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return Promise.all(promises);
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}).then(results => {
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const bin = {};
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for ( const { key, data } of results ) {
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bin[key] = data;
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}
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return bin;
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return Promise.all(promises).then(( ) => outbin);
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}).catch(reason => {
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ubolog(reason);
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});
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@ -183,8 +194,6 @@ const cacheStorage = (( ) => {
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idbStorage.clear();
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return Promise.all(toMigrate);
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},
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error: undefined
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};
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})();
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@ -217,6 +226,7 @@ const cacheAPI = (( ) => {
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}
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resolve(caches.open(STORAGE_NAME).catch(reason => {
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ubolog(reason);
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return null;
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}));
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});
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@ -232,7 +242,7 @@ const cacheAPI = (( ) => {
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const cache = await cacheStoragePromise;
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if ( cache === null ) { return; }
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return cache.match(keyToURL(key)).then(response => {
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if ( response instanceof Response === false ) { return; }
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if ( response === undefined ) { return; }
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return response.text();
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}).then(text => {
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if ( text === undefined ) { return; }
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@ -302,7 +312,7 @@ const cacheAPI = (( ) => {
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}
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const responses = await Promise.all(toFetch);
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for ( const response of responses ) {
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if ( response instanceof Object === false ) { continue; }
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if ( response === undefined ) { continue; }
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const { key, text } = response;
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if ( typeof key !== 'string' ) { continue; }
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if ( typeof text !== 'string' ) { continue; }
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@ -321,7 +331,7 @@ const cacheAPI = (( ) => {
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).catch(( ) => []);
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},
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async set(keyvalStore) {
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set(keyvalStore) {
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const keys = Object.keys(keyvalStore);
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if ( keys.length === 0 ) { return; }
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const promises = [];
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@ -331,7 +341,7 @@ const cacheAPI = (( ) => {
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return Promise.all(promises);
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},
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async remove(keys) {
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remove(keys) {
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const toRemove = [];
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if ( typeof keys === 'string' ) {
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toRemove.push(removeOne(keys));
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@ -343,7 +353,7 @@ const cacheAPI = (( ) => {
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return Promise.all(toRemove);
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},
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async clear() {
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clear() {
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return globalThis.caches.delete(STORAGE_NAME).catch(reason => {
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ubolog(reason);
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});
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@ -948,7 +948,7 @@ const onMessage = function(request, sender, callback) {
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case 'cloudPull':
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request.decode = encoded => {
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if ( scuo.canDeserialize(encoded) ) {
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if ( scuo.isSerialized(encoded) ) {
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return scuo.deserializeAsync(encoded, { thread: true });
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}
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// Legacy decoding: needs to be kept around for the foreseeable future.
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@ -1096,10 +1096,13 @@ export const deserialize = s => {
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return data;
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};
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export const canDeserialize = s =>
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export const isSerialized = s =>
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typeof s === 'string' &&
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(s.startsWith(MAGICLZ4PREFIX) || s.startsWith(MAGICPREFIX));
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export const isCompressed = s =>
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typeof s === 'string' && s.startsWith(MAGICLZ4PREFIX);
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/*******************************************************************************
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*
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* Configuration
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@ -1137,10 +1140,78 @@ export const setConfig = config => {
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*
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* */
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const THREAD_AREYOUREADY = 1;
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const THREAD_IAMREADY = 2;
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const THREAD_SERIALIZE = 3;
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const THREAD_DESERIALIZE = 4;
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class MainThread {
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constructor() {
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this.jobs = [];
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this.workload = 0;
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this.timer = undefined;
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this.busy = false;
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}
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process() {
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if ( this.jobs.length === 0 ) { return; }
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const job = this.jobs.shift();
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this.workload -= job.size;
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const result = job.what === THREAD_SERIALIZE
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? serialize(job.data, job.options)
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: deserialize(job.data);
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job.resolve(result);
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this.processAsync();
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if ( this.jobs.length === 0 ) {
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this.busy = false;
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}
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}
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processAsync() {
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if ( this.timer !== undefined ) { return; }
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if ( this.jobs.length === 0 ) { return; }
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this.timer = globalThis.requestIdleCallback(deadline => {
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this.timer = undefined;
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globalThis.queueMicrotask(( ) => {
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this.timer = undefined;
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this.process();
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});
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this.busy = deadline.timeRemaining() === 0;
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}, { timeout: 7 });
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}
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serialize(data, options) {
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return new Promise(resolve => {
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this.workload += 1;
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this.jobs.push({ what: THREAD_SERIALIZE, data, options, size: 1, resolve });
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this.processAsync();
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});
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}
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deserialize(data, options) {
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return new Promise(resolve => {
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const size = data.length;
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this.workload += size;
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this.jobs.push({ what: THREAD_DESERIALIZE, data, options, size, resolve });
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this.processAsync();
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});
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}
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get queueSize() {
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return this.jobs.length + 1;
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}
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get workSize() {
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return this.busy ? Number.MAX_SAFE_INTEGER : this.workload * 2;
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}
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}
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class Thread {
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constructor(gcer) {
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this.jobs = new Map();
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this.jobIdGenerator = 1;
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this.workload = 0;
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this.workerAccessTime = 0;
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this.workerTimer = undefined;
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this.gcer = gcer;
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@ -1151,7 +1222,7 @@ class Thread {
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worker.onmessage = ev => {
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const msg = ev.data;
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if ( isInstanceOf(msg, 'Object') === false ) { return; }
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if ( msg.what === 'ready!' ) {
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if ( msg.what === THREAD_IAMREADY ) {
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worker.onmessage = ev => { this.onmessage(ev); };
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worker.onerror = null;
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resolve(worker);
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@ -1161,7 +1232,10 @@ class Thread {
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worker.onmessage = worker.onerror = null;
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resolve(null);
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};
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worker.postMessage({ what: 'ready?', config: currentConfig });
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worker.postMessage({
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what: THREAD_AREYOUREADY,
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config: currentConfig,
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});
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} catch(ex) {
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console.info(ex);
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worker.onmessage = worker.onerror = null;
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@ -1194,6 +1268,7 @@ class Thread {
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if ( resolve === undefined ) { return; }
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this.jobs.delete(job.id);
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resolve(job.result);
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this.workload -= job.size;
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if ( this.jobs.size !== 0 ) { return; }
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this.countdownWorker();
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}
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@ -1208,7 +1283,8 @@ class Thread {
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}
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const id = this.jobIdGenerator++;
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return new Promise(resolve => {
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const job = { what: 'serialize', id, data, options };
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this.workload += 1;
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const job = { what: THREAD_SERIALIZE, id, data, options, size: 1 };
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this.jobs.set(job.id, resolve);
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worker.postMessage(job);
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});
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@ -1224,25 +1300,36 @@ class Thread {
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}
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const id = this.jobIdGenerator++;
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return new Promise(resolve => {
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const job = { what: 'deserialize', id, data, options };
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const size = data.length;
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this.workload += size;
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const job = { what: THREAD_DESERIALIZE, id, data, options, size };
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this.jobs.set(job.id, resolve);
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worker.postMessage(job);
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});
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}
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get queueSize() {
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return this.jobs.size;
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}
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get workSize() {
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return this.workload;
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}
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}
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const threads = {
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pool: [],
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pool: [ new MainThread() ],
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thread(maxPoolSize) {
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for ( const thread of this.pool ) {
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if ( thread.jobs.size === 0 ) { return thread; }
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}
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const len = this.pool.length;
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if ( len !== 0 && len >= maxPoolSize ) {
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if ( len === 1 ) { return this.pool[0]; }
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return this.pool.reduce((best, candidate) =>
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candidate.jobs.size < best.jobs.size ? candidate : best
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);
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const poolSize = this.pool.length;
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if ( poolSize !== 0 && poolSize >= maxPoolSize ) {
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if ( poolSize === 1 ) { return this.pool[0]; }
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return this.pool.reduce((best, candidate) => {
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if ( candidate.queueSize === 0 ) { return candidate; }
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if ( best.queueSize === 0 ) { return best; }
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return candidate.workSize < best.workSize
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? candidate
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: best;
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});
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}
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const thread = new Thread(thread => {
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const pos = this.pool.indexOf(thread);
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@ -1267,6 +1354,7 @@ export async function serializeAsync(data, options = {}) {
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}
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export async function deserializeAsync(data, options = {}) {
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if ( isSerialized(data) === false ) { return data; }
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const maxThreadCount = options.multithreaded || 0;
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if ( maxThreadCount === 0 ) {
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return deserialize(data, options);
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@ -1288,16 +1376,17 @@ if ( isInstanceOf(globalThis, 'DedicatedWorkerGlobalScope') ) {
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globalThis.onmessage = ev => {
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const msg = ev.data;
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switch ( msg.what ) {
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case 'ready?':
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case THREAD_AREYOUREADY:
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setConfig(msg.config);
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globalThis.postMessage({ what: 'ready!' });
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globalThis.postMessage({ what: THREAD_IAMREADY });
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break;
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case 'serialize':
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case 'deserialize': {
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const result = msg.what === 'serialize'
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? serialize(msg.data, msg.options)
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: deserialize(msg.data);
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globalThis.postMessage({ id: msg.id, result });
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case THREAD_SERIALIZE:
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const result = serialize(msg.data, msg.options);
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globalThis.postMessage({ id: msg.id, size: msg.size, result });
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break;
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case THREAD_DESERIALIZE: {
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const result = deserialize(msg.data);
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globalThis.postMessage({ id: msg.id, size: msg.size, result });
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break;
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}
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}
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