2 lines
15 KiB
JavaScript
2 lines
15 KiB
JavaScript
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!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?t(exports):"function"==typeof define&&define.amd?define(["exports"],t):t((e="undefined"!=typeof globalThis?globalThis:e||self).wasiThreads={})}(this,function(e){var t="undefined"!=typeof WebAssembly?WebAssembly:"undefined"!=typeof WXWebAssembly?WXWebAssembly:void 0,r="object"==typeof process&&null!==process&&"object"==typeof process.versions&&null!==process.versions&&"string"==typeof process.versions.node;function o(e){return"function"==typeof(null==e?void 0:e.postMessage)?e.postMessage:"function"==typeof postMessage?postMessage:void 0}function n(e){return"function"==typeof SharedArrayBuffer&&e instanceof SharedArrayBuffer||"[object SharedArrayBuffer]"===Object.prototype.toString.call(e)}function i(e){try{return e instanceof t.RuntimeError}catch(e){return!1}}function a(e,t){return{__emnapi__:{type:e,payload:t}}}function s(e){if(e){if(!n(e.buffer))throw new Error("Multithread features require shared wasm memory. Try to compile with `-matomics -mbulk-memory` and use `--import-memory --shared-memory` during linking, then create WebAssembly.Memory with `shared: true` option")}else if("undefined"==typeof SharedArrayBuffer)throw new Error("Current environment does not support SharedArrayBuffer, threads are not available!")}var d=0,h=function(){function e(e){var t;if(this.unusedWorkers=[],this.pthreads=Object.create(null),this.wasmModule=null,this.wasmMemory=null,this.messageEvents=new WeakMap,!e)throw new TypeError("ThreadManager(): options is not provided");this._childThread="childThread"in e&&Boolean(e.childThread),this._childThread?(this._onCreateWorker=void 0,this._reuseWorker=!1,this._beforeLoad=void 0):(this._onCreateWorker=e.onCreateWorker,this._reuseWorker=function(e){var t;if("boolean"==typeof e)return!!e&&{size:0,strict:!1};if("number"==typeof e){if(!(e>=0))throw new RangeError("reuseWorker: size must be a non-negative integer");return{size:e,strict:!1}}if(!e)return!1;var r=null!==(t=Number(e.size))&&void 0!==t?t:0,o=Boolean(e.strict);if(!(r>0)&&o)throw new RangeError("reuseWorker: size must be set to positive integer if strict is set to true");return{size:r,strict:o}}(e.reuseWorker),this._beforeLoad=e.beforeLoad),this.printErr=null!==(t=e.printErr)&&void 0!==t?t:console.error.bind(console),this.threadSpawn=e.threadSpawn}return Object.defineProperty(e.prototype,"nextWorkerID",{get:function(){return d},enumerable:!1,configurable:!0}),e.prototype.init=function(){this._childThread||this.initMainThread()},e.prototype.initMainThread=function(){this.preparePool()},e.prototype.preparePool=function(){if(this._reuseWorker&&this._reuseWorker.size)for(var e=this._reuseWorker.size;e--;){var t=this.allocateUnusedWorker();r&&(t.once("message",function(){}),t.unref())}},e.prototype.shouldPreloadWorkers=function(){return!this._childThread&&this._reuseWorker&&this._reuseWorker.size>0},e.prototype.loadWasmModuleToAllWorkers=function(){for(var e=this,t=Array(this.unusedWorkers.length),o=function(e){var o=n.unusedWorkers[e];r&&o.ref(),t[e]=n.loadWasmModuleToWorker(o).then(function(e){return r&&o.unref(),e},function(e){throw r&&o.unref(),e})},n=this,i=0;i<this.unusedWorkers.length;++i)o(i);return Promise.all(t).catch(function(t){throw e.terminateAllThreads(),t})},e.prototype.preloadWorkers=function(){return this.shouldPreloadWorkers()?this.loadWasmModuleToAllWorkers():Promise.resolve([])},e.prototype.setup=function(e,t){this.wasmModule=e,this.wasmMemory=t},e.prototype.markId=function(e){if(e.__emnapi_tid)return e.__emnapi_tid;var t=d+43;return d=(d+1)%536870869,this.pthreads[t]=e,e.__emnapi_tid=t,t},e.prototype.returnWorkerToPool=function(e){var t=e.__emnapi_tid;void 0!==t&&delete this.pthreads[t],this.unusedWorkers.push(e),delete e.__emnapi_tid,r&&e.unref()},e.prototype.loadWasmModuleToWorker=function(e,t){var o=this;if(e.whenLoaded)return e.whenLoaded;var n=this.printErr,i=this._beforeLoad,d=this;return e.whenLoaded=new Promise(function(h,u){e.onmessage=function(t){!function(t){if(t.__emnapi__){var n=t.__emnapi__.type,i=t.__emnapi__.payload;"loaded"===n?(e.loaded=!0,r
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