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cache the set of actively monitored blocks

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Projects can have 100's of potentially monitored blocks. Caching the
set of monitored blocks can save time in Runtime._step every frame.
This commit is contained in:
Michael "Z" Goddard 2018-11-01 17:14:56 -04:00
parent de86eb3f19
commit a3f9aa1e22
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GPG key ID: 762CD40DD5349872
1 changed files with 26 additions and 7 deletions
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29
src/engine/blocks.js
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@ -63,7 +63,14 @@ class Blocks {
* execute.
* @type {object.<string, object>}
*/
_executeCached: {}
_executeCached: {},
/**
* A cache of block IDs and targets to start threads on as they are
* actively monitored.
* @type {Array<{blockId: string, target: Target}>}
*/
_monitored: null
};
/**
@ -491,6 +498,7 @@ class Blocks {
this._cache.procedureParamNames = {};
this._cache.procedureDefinitions = {};
this._cache._executeCached = {};
this._cache._monitored = null;
}
/**
@ -667,14 +675,25 @@ class Blocks {
* @param {!object} runtime Runtime to run all blocks in.
*/
runAllMonitored (runtime) {
Object.keys(this._blocks).forEach(blockId => {
if (this.getBlock(blockId).isMonitored) {
if (this._cache._monitored === null) {
this._cache._monitored = Object.keys(this._blocks)
.filter(blockId => this.getBlock(blockId).isMonitored)
.map(blockId => {
const targetId = this.getBlock(blockId).targetId;
runtime.addMonitorScript(blockId, targetId ? runtime.getTargetById(targetId) : null);
}
return {
blockId,
target: targetId ? runtime.getTargetById(targetId) : null
};
});
}
const monitored = this._cache._monitored;
for (let i = 0; i < monitored.length; i++) {
const {blockId, target} = monitored[i];
runtime.addMonitorScript(blockId, target);
}
}
/**
* Block management: delete blocks and their associated scripts. Does nothing if a block
* with the given ID does not exist.