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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@expo/cli/build/src/utils
Просмотр файла: exit.js

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.installExitHooks = installExitHooks;
var Log = _interopRequireWildcard(require("../log"));
var _fn = require("./fn");
function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
        return obj;
    } else {
        var newObj = {};
        if (obj != null) {
            for(var key in obj){
                if (Object.prototype.hasOwnProperty.call(obj, key)) {
                    var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {};
                    if (desc.get || desc.set) {
                        Object.defineProperty(newObj, key, desc);
                    } else {
                        newObj[key] = obj[key];
                    }
                }
            }
        }
        newObj.default = obj;
        return newObj;
    }
}
const PRE_EXIT_SIGNALS = [
    "SIGHUP",
    "SIGINT",
    "SIGTERM",
    "SIGBREAK"
];
// We create a queue since Node.js throws an error if we try to append too many listeners:
// (node:4405) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 SIGINT listeners added to [process]. Use emitter.setMaxListeners() to increase limit
const queue = [];
let unsubscribe = null;
function installExitHooks(asyncExitHook) {
    // We need to instantiate the master listener the first time the queue is used.
    if (!queue.length) {
        // Track the master listener so we can remove it later.
        unsubscribe = attachMasterListener();
    }
    queue.push(asyncExitHook);
    return ()=>{
        const index = queue.indexOf(asyncExitHook);
        if (index >= 0) {
            queue.splice(index, 1);
        }
        // Clean up the master listener if we don't need it anymore.
        if (!queue.length) {
            unsubscribe == null ? void 0 : unsubscribe();
        }
    };
}
// Create a function that runs before the process exits and guards against running multiple times.
function createExitHook(signal) {
    return (0, _fn).guardAsync(async ()=>{
        Log.debug(`pre-exit (signal: ${signal}, queue length: ${queue.length})`);
        for (const [index, hookAsync] of Object.entries(queue)){
            try {
                await hookAsync(signal);
            } catch (error) {
                Log.debug(`Error in exit hook: %O (queue: ${index})`, error);
            }
        }
        var _exitCode;
        Log.debug(`post-exit (code: ${(_exitCode = process.exitCode) != null ? _exitCode : 0})`);
        process.exit();
    });
}
function attachMasterListener() {
    const hooks = [];
    for (const signal1 of PRE_EXIT_SIGNALS){
        const hook = createExitHook(signal1);
        hooks.push([
            signal1,
            hook
        ]);
        process.on(signal1, hook);
    }
    return ()=>{
        for (const [signal, hook] of hooks){
            process.removeListener(signal, hook);
        }
    };
}

//# sourceMappingURL=exit.js.map
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