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process.ts
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process.ts
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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
// Copyright Joyent, Inc. and Node.js contributors. All rights reserved. MIT license.
import { isWindows } from "../../_util/os.ts";
import { nextTick as _nextTick } from "../_next_tick.ts";
// deno-lint-ignore prefer-const
export let _exiting = false;
/** Returns the operating system CPU architecture for which the Deno binary was compiled */
function _arch(): string {
if (Deno.build.arch == "x86_64") {
return "x64";
} else if (Deno.build.arch == "aarch64") {
return "arm64";
} else {
throw Error("unreachable");
}
}
/** https://nodejs.org/api/process.html#process_process_arch */
export const arch = _arch();
/** https://nodejs.org/api/process.html#process_process_chdir_directory */
export const chdir = Deno.chdir;
/** https://nodejs.org/api/process.html#process_process_cwd */
export const cwd = Deno.cwd;
/** https://nodejs.org/api/process.html#process_process_nexttick_callback_args */
export const nextTick = _nextTick;
/**
* https://nodejs.org/api/process.html#process_process_env
* Requires env permissions
*/
export const env: Record<string, string> = new Proxy({}, {
get(_target, prop) {
return Deno.env.get(String(prop));
},
ownKeys: () => Reflect.ownKeys(Deno.env.toObject()),
getOwnPropertyDescriptor: () => ({ enumerable: true, configurable: true }),
set(_target, prop, value) {
Deno.env.set(String(prop), String(value));
return value;
},
});
/** https://nodejs.org/api/process.html#process_process_pid */
export const pid = Deno.pid;
/** https://nodejs.org/api/process.html#process_process_platform */
export const platform = isWindows ? "win32" : Deno.build.os;
/**
* https://nodejs.org/api/process.html#process_process_version
*
* This value is hard coded to latest stable release of Node, as
* some packages are checking it for compatibility. Previously
* it pointed to Deno version, but that led to incompability
* with some packages.
*/
export const version = "v16.11.1";
/**
* https://nodejs.org/api/process.html#process_process_versions
*
* This value is hard coded to latest stable release of Node, as
* some packages are checking it for compatibility. Previously
* it contained only output of `Deno.version`, but that led to incompability
* with some packages. Value of `v8` field is still taken from `Deno.version`.
*/
export const versions = {
node: "16.11.1",
uv: "1.42.0",
zlib: "1.2.11",
brotli: "1.0.9",
ares: "1.17.2",
modules: "93",
nghttp2: "1.45.1",
napi: "8",
llhttp: "6.0.4",
openssl: "1.1.1l",
cldr: "39.0",
icu: "69.1",
tz: "2021a",
unicode: "13.0",
...Deno.version,
};
function hrtime(time?: [number, number]): [number, number] {
const milli = performance.now();
const sec = Math.floor(milli / 1000);
const nano = Math.floor(milli * 1_000_000 - sec * 1_000_000_000);
if (!time) {
return [sec, nano];
}
const [prevSec, prevNano] = time;
return [sec - prevSec, nano - prevNano];
}
hrtime.bigint = function (): BigInt {
const [sec, nano] = hrtime();
return BigInt(sec) * 1_000_000_000n + BigInt(nano);
};
function memoryUsage(): {
rss: number;
heapTotal: number;
heapUsed: number;
external: number;
arrayBuffers: number;
} {
return {
...Deno.memoryUsage(),
arrayBuffers: 0,
};
}
memoryUsage.rss = function (): number {
return memoryUsage().rss;
};