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/*
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Keep track of open Jupyter kernels.
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*/
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import { EventEmitter } from "events";
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import { type JupyterKernel } from "./kernel";
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class Kernels extends EventEmitter {
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  kernels: { [path: string]: JupyterKernel } = {};
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  get = (path: string): JupyterKernel | undefined => this.kernels[path];
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  set = (path: string, kernel: JupyterKernel) => {
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    this.kernels[path] = kernel;
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    this.emit(path, kernel);
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  };
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  delete = (path: string) => {
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    delete this.kernels[path];
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  };
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}
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export const kernels = new Kernels();
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