source: trip-planner-front/node_modules/hdr-histogram-js/dist/wasm/index.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit
  • Property mode set to 100644
File size: 8.5 KB
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1"use strict";
2var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
3 function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
4 return new (P || (P = Promise))(function (resolve, reject) {
5 function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
6 function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
7 function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
8 step((generator = generator.apply(thisArg, _arguments || [])).next());
9 });
10};
11Object.defineProperty(exports, "__esModule", { value: true });
12exports.WasmHistogram = exports.webAssemblyReady = exports.initWebAssemblySync = exports.initWebAssembly = exports.webAssemblyAvailable = void 0;
13const generated_wasm_1 = require("./generated-wasm");
14const Histogram_1 = require("../Histogram");
15// @ts-ignore
16const base64 = require("base64-js");
17// @ts-ignore
18const pako = require("pako");
19// @ts-ignore
20const loader = require("@assemblyscript/loader");
21const isNode = typeof process !== "undefined" && process.version;
22// @ts-ignore
23const isWorker = typeof importScripts === "function";
24exports.webAssemblyAvailable = (() => {
25 let available = false;
26 if (isNode) {
27 // nodejs
28 available = "WebAssembly" in global;
29 }
30 else {
31 // browser
32 // @ts-ignore
33 available = isWorker || "WebAssembly" in window;
34 }
35 return available;
36})();
37let wasm = undefined;
38exports.initWebAssembly = () => __awaiter(void 0, void 0, void 0, function* () {
39 if (!exports.webAssemblyAvailable) {
40 throw new Error("WebAssembly not available here!");
41 }
42 if (!!wasm) {
43 return;
44 }
45 return loader
46 .instantiate(pako.inflate(base64.toByteArray(generated_wasm_1.BINARY)))
47 .then((w) => (wasm = w.exports || w));
48});
49exports.initWebAssemblySync = () => {
50 if (!!wasm) {
51 return;
52 }
53 const w = loader.instantiateSync(pako.inflate(base64.toByteArray(generated_wasm_1.BINARY)));
54 wasm = w.exports || w;
55};
56exports.webAssemblyReady = () => !!wasm;
57const defaultRequest = {
58 bitBucketSize: 32,
59 autoResize: true,
60 lowestDiscernibleValue: 1,
61 highestTrackableValue: 2,
62 numberOfSignificantValueDigits: 3
63};
64const remoteHistogramClassFor = (size) => size === "packed" ? "PackedHistogram" : `Histogram${size}`;
65const destroyedWasmHistogram = new Proxy({}, {
66 get: function (obj, prop) {
67 throw new Error("Cannot use a destroyed histogram");
68 }
69});
70class WasmHistogram {
71 constructor(_wasmHistogram, _remoteHistogramClass) {
72 this._wasmHistogram = _wasmHistogram;
73 this._remoteHistogramClass = _remoteHistogramClass;
74 this.tag = Histogram_1.NO_TAG;
75 }
76 static build(request = defaultRequest) {
77 if (!exports.webAssemblyReady()) {
78 throw new Error("WebAssembly is not ready yet!");
79 }
80 const parameters = Object.assign({}, defaultRequest, request);
81 const remoteHistogramClass = remoteHistogramClassFor(parameters.bitBucketSize);
82 return new WasmHistogram(new wasm[remoteHistogramClass](parameters.lowestDiscernibleValue, parameters.highestTrackableValue, parameters.numberOfSignificantValueDigits, parameters.autoResize), remoteHistogramClass);
83 }
84 static decode(data, bitBucketSize = 32, minBarForHighestTrackableValue = 0) {
85 if (!exports.webAssemblyReady()) {
86 throw new Error("WebAssembly is not ready yet!");
87 }
88 const remoteHistogramClass = remoteHistogramClassFor(bitBucketSize);
89 const decodeFunc = `decode${remoteHistogramClass}`;
90 const ptrArr = wasm.__retain(wasm.__allocArray(wasm.UINT8ARRAY_ID, data));
91 const wasmHistogram = new WasmHistogram(wasm[remoteHistogramClass].wrap(wasm[decodeFunc](ptrArr, minBarForHighestTrackableValue)), remoteHistogramClass);
92 wasm.__release(ptrArr);
93 return wasmHistogram;
94 }
95 get numberOfSignificantValueDigits() {
96 return this._wasmHistogram.numberOfSignificantValueDigits;
97 }
98 get autoResize() {
99 return !!this._wasmHistogram.autoResize;
100 }
101 set autoResize(resize) {
102 this._wasmHistogram.autoResize = resize;
103 }
104 get highestTrackableValue() {
105 return this._wasmHistogram.highestTrackableValue;
106 }
107 set highestTrackableValue(value) {
108 this._wasmHistogram.highestTrackableValue = value;
109 }
110 get startTimeStampMsec() {
111 return this._wasmHistogram.startTimeStampMsec;
112 }
113 set startTimeStampMsec(value) {
114 this._wasmHistogram.startTimeStampMsec = value;
115 }
116 get endTimeStampMsec() {
117 return this._wasmHistogram.endTimeStampMsec;
118 }
119 set endTimeStampMsec(value) {
120 this._wasmHistogram.endTimeStampMsec = value;
121 }
122 get totalCount() {
123 return this._wasmHistogram.totalCount;
124 }
125 get stdDeviation() {
126 return this._wasmHistogram.stdDeviation;
127 }
128 get mean() {
129 return this._wasmHistogram.mean;
130 }
131 get estimatedFootprintInBytes() {
132 return 192 + this._wasmHistogram.estimatedFootprintInBytes;
133 }
134 get minNonZeroValue() {
135 return this._wasmHistogram.minNonZeroValue;
136 }
137 get maxValue() {
138 return this._wasmHistogram.maxValue;
139 }
140 recordValue(value) {
141 this._wasmHistogram.recordValue(value);
142 }
143 recordValueWithCount(value, count) {
144 this._wasmHistogram.recordValueWithCount(value, count);
145 }
146 recordValueWithExpectedInterval(value, expectedIntervalBetweenValueSamples) {
147 this._wasmHistogram.recordValueWithExpectedInterval(value, expectedIntervalBetweenValueSamples);
148 }
149 getValueAtPercentile(percentile) {
150 return this._wasmHistogram.getValueAtPercentile(percentile);
151 }
152 outputPercentileDistribution(percentileTicksPerHalfDistance = 5, outputValueUnitScalingRatio = 1, useCsvFormat = false) {
153 // TODO csv
154 if (useCsvFormat) {
155 throw new Error("CSV output not supported by wasm histograms");
156 }
157 return wasm.__getString(this._wasmHistogram.outputPercentileDistribution(percentileTicksPerHalfDistance, outputValueUnitScalingRatio));
158 }
159 isDestroyed() {
160 return this._wasmHistogram === destroyedWasmHistogram;
161 }
162 get summary() {
163 return Histogram_1.toSummary(this);
164 }
165 toJSON() {
166 return this.summary;
167 }
168 toString() {
169 if (this.isDestroyed()) {
170 return "Destroyed WASM histogram";
171 }
172 return `WASM ${this._remoteHistogramClass} ${JSON.stringify(this, null, 2)}`;
173 }
174 inspect() {
175 return this.toString();
176 }
177 [Symbol.for("nodejs.util.inspect.custom")]() {
178 return this.toString();
179 }
180 addWhileCorrectingForCoordinatedOmission(otherHistogram, expectedIntervalBetweenValueSamples) {
181 this._wasmHistogram.addWhileCorrectingForCoordinatedOmission(otherHistogram, expectedIntervalBetweenValueSamples);
182 }
183 copyCorrectedForCoordinatedOmission(expectedIntervalBetweenValueSamples) {
184 return new WasmHistogram(wasm[this._remoteHistogramClass].wrap(this._wasmHistogram.copyCorrectedForCoordinatedOmission(expectedIntervalBetweenValueSamples)), this._remoteHistogramClass);
185 }
186 add(otherHistogram) {
187 if (!(otherHistogram instanceof WasmHistogram)) {
188 // should be impossible to be in this situation but actually
189 // TypeScript has some flaws...
190 throw new Error("Cannot add a regular JS histogram to a WASM histogram");
191 }
192 this._wasmHistogram[`add${otherHistogram._remoteHistogramClass}`](otherHistogram._wasmHistogram);
193 }
194 subtract(otherHistogram) {
195 if (!(otherHistogram instanceof WasmHistogram)) {
196 // should be impossible to be in this situation but actually
197 // TypeScript has some flaws...
198 throw new Error("Cannot subtract a regular JS histogram to a WASM histogram");
199 }
200 this._wasmHistogram[`subtract${otherHistogram._remoteHistogramClass}`](otherHistogram._wasmHistogram);
201 }
202 encode() {
203 const ptrArray = this._wasmHistogram.encode();
204 const array = wasm.__getUint8Array(ptrArray);
205 wasm.__release(ptrArray);
206 return array;
207 }
208 reset() {
209 this.tag = Histogram_1.NO_TAG;
210 this._wasmHistogram.reset();
211 }
212 destroy() {
213 wasm.__release(this._wasmHistogram);
214 this._wasmHistogram = destroyedWasmHistogram;
215 }
216}
217exports.WasmHistogram = WasmHistogram;
218//# sourceMappingURL=index.js.map
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