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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,57 @@ | ||
| export class TaskPool { | ||
| /** | ||
| * | ||
| * @param availableSlot The available slot number. If -1 (negative) means no limit, acquire will always return true. | ||
| * @param maxTaskCount Has to be bigger than 0 or `undefined`. | ||
| */ | ||
| constructor(private availableSlot: number) {} | ||
| constructor(private _maxTaskCount: number | undefined) { | ||
| if (_maxTaskCount != undefined && _maxTaskCount < 1) throw Error('invalid argument'); | ||
| } | ||
|
|
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| get maxTaskCount(): number | undefined { | ||
| return this._maxTaskCount; | ||
| } | ||
|
|
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| set maxTaskCount(maxTaskCount: number | undefined) { | ||
| if (maxTaskCount != undefined && maxTaskCount < 1) throw Error('invalid argument'); | ||
| this._maxTaskCount = maxTaskCount; | ||
|
|
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| while (this._waitingTasks.length > 0 && this._acquire()) | ||
| this._waitingTasks.pop()!(); | ||
| } | ||
|
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| acquire(): boolean { | ||
| if (this.availableSlot < 0) return true; | ||
| if (this.availableSlot == 0) return false; | ||
| this.availableSlot -= 1; | ||
| return true; | ||
| scheduleTask<TResult>(task: () => TResult | PromiseLike<TResult>): Promise<TResult> { | ||
| return new Promise<void>(resolve => { | ||
| if (this._acquire()) | ||
| resolve(); | ||
| else | ||
| this._waitingTasks.unshift(resolve); | ||
| }).then(task) | ||
| .then( | ||
| (v: TResult) => { | ||
| this._release(); | ||
| return v; | ||
| }, | ||
| (reason?: any) => { | ||
| this._release(); | ||
| throw reason; | ||
| }); | ||
| } | ||
|
|
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| release(): void { | ||
| if (this.availableSlot < 0) return; | ||
| this.availableSlot += 1; | ||
| private _runningTaskCount: number = 0; | ||
| private readonly _waitingTasks: (() => void)[] = []; | ||
|
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| private _acquire(): boolean { | ||
| if (this._maxTaskCount === undefined || this._runningTaskCount < this._maxTaskCount) { | ||
| this._runningTaskCount += 1; | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
|
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| private _release(): void { | ||
| this._runningTaskCount -= 1; | ||
|
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| while (this._waitingTasks.length > 0 && this._acquire()) | ||
| this._waitingTasks.pop()!(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| //----------------------------------------------------------------------------- | ||
| // vscode-catch2-test-adapter was written by Mate Pek, and is placed in the | ||
| // public domain. The author hereby disclaims copyright to this source code. | ||
|
|
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| export class TaskQueue { | ||
| constructor(depends: Iterable<TaskQueue> = [], | ||
| public readonly name?: string) { | ||
| this._depends = [...depends]; | ||
| // TODO check circular dependency | ||
| } | ||
|
|
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| empty(): boolean { | ||
| return this._count == 0; | ||
| } | ||
|
|
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| get size(): number { | ||
| return this._count; | ||
| } | ||
|
|
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| get length(): number { | ||
| return this._count; | ||
| } | ||
|
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| then<TResult1>( | ||
| task: (() => TResult1 | PromiseLike<TResult1>)): Promise<TResult1> { | ||
| this._count++; | ||
|
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| const previous = this._queue; | ||
|
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| const current = Promise.all(this._depends.map(v => v._queue)) | ||
| .then(() => { | ||
| return previous.then(task); | ||
| }); | ||
|
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| const decr = () => { this._count--; }; | ||
|
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| this._queue = current.then(decr, decr); | ||
|
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| return current; | ||
| } | ||
|
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| dependsOn(depends: Iterable<TaskQueue>): void { | ||
| for (const dep of depends) { | ||
| this._depends.push(dep); | ||
| } | ||
| // TODO check circular dependency | ||
| } | ||
|
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| private _count: number = 0; | ||
| private _queue: Promise<void> = Promise.resolve(); | ||
| private readonly _depends: Array<TaskQueue>; | ||
| } |
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