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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { sendSync } from "./dispatch_json.ts";
// TODO(bartlomieju): these two types are duplicated
// in `cli/js/build.ts` - deduplicate
export type OperatingSystem = "mac" | "win" | "linux";
export type Arch = "x64" | "arm64";
export interface Start {
cwd: string;
pid: number;
args: string[];
location: string; // Absolute URL.
repl: boolean;
debugFlag: boolean;
depsFlag: boolean;
typesFlag: boolean;
versionFlag: boolean;
denoVersion: string;
v8Version: string;
tsVersion: string;
noColor: boolean;
os: OperatingSystem;
arch: Arch;
}
export function start(): Start {
return sendSync("op_start");
}
export interface Metrics {
opsDispatched: number;
opsDispatchedSync: number;
opsDispatchedAsync: number;
opsDispatchedAsyncUnref: number;
opsCompleted: number;
opsCompletedSync: number;
opsCompletedAsync: number;
opsCompletedAsyncUnref: number;
bytesSentControl: number;
bytesSentData: number;
bytesReceived: number;
}
/** Receive metrics from the privileged side of Deno.
*
* > console.table(Deno.metrics())
* ┌─────────────────────────┬────────┐
* │ (index) │ Values │
* ├─────────────────────────┼────────┤
* │ opsDispatched │ 3 │
* │ opsDispatchedSync │ 2 │
* │ opsDispatchedAsync │ 1 │
* │ opsDispatchedAsyncUnref │ 0 │
* │ opsCompleted │ 3 │
* │ opsCompletedSync │ 2 │
* │ opsCompletedAsync │ 1 │
* │ opsCompletedAsyncUnref │ 0 │
* │ bytesSentControl │ 73 │
* │ bytesSentData │ 0 │
* │ bytesReceived │ 375 │
* └─────────────────────────┴────────┘
*/
export function metrics(): Metrics {
return sendSync("op_metrics");
}
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