@nori-zk/proof-conversion/build/src/compute/processPool.js

Verifying zkVM proofs inside o1js circuits, to generate Mina compatible proof

var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
    return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
    if (kind === "m") throw new TypeError("Private method is not writable");
    if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
    if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
    return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var _ProcessPool_instances, _ProcessPool_free, _ProcessPool_lifo, _ProcessPool_logger, _ProcessPool_jobToString, _ProcessPool_spawnWorker, _ProcessPool_checkForJobsAfterWorkerFinish;
import { spawn } from 'child_process';
import { Logger } from 'esm-iso-logger';
import { DeferredPromise } from '../utils/DeferredPromise.js';
export function processCmdToString(processCmd) {
    const { cmd, args, printableArgs } = processCmd;
    if (!args.length)
        return cmd;
    if (!printableArgs) {
        return `${cmd} ${args.join(' ')}`;
    }
    const filteredPrintableArgs = args.filter((_, idx) => printableArgs.includes(idx));
    return filteredPrintableArgs.length < args.length
        ? `${cmd} ${filteredPrintableArgs.join(' ')}...`
        : `${cmd} ${args.join(' ')}`;
}
let processPoolIdx = 0;
export class ProcessPool {
    async runCommand(processCmd) {
        // Create an inverted promise to resolve the result at a later time.
        const deferredPromise = new DeferredPromise();
        // Check for a free worker.
        const freeFreePoolWorkerKeyValuePair = __classPrivateFieldGet(this, _ProcessPool_free, "f").values().next().value;
        // If we have a free worker queue immediately.
        if (freeFreePoolWorkerKeyValuePair !== undefined) {
            // Get the worker Id
            const workerId = freeFreePoolWorkerKeyValuePair;
            // Remove the worker from the pool
            __classPrivateFieldGet(this, _ProcessPool_free, "f").delete(workerId);
            // Run job immediately
            __classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_spawnWorker).call(this, processCmd, workerId)
                .then((result) => deferredPromise.resolve(result))
                .catch((err) => deferredPromise.reject(err))
                .finally(() => __classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_checkForJobsAfterWorkerFinish).call(this, workerId));
            return deferredPromise.promise;
        }
        else {
            // Queue job for next free worker
            __classPrivateFieldGet(this, _ProcessPool_logger, "f").debug(`No workers available. Job '${__classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_jobToString).call(this, processCmd)}' queued.`);
            __classPrivateFieldGet(this, _ProcessPool_lifo, "f").push({ ...processCmd, deferredPromise: deferredPromise });
            return deferredPromise.promise;
        }
    }
    workerFreeStatus() {
        return Array.from(__classPrivateFieldGet(this, _ProcessPool_free, "f")).sort((a, b) => a - b);
    }
    constructor(poolSize) {
        _ProcessPool_instances.add(this);
        _ProcessPool_free.set(this, void 0);
        _ProcessPool_lifo.set(this, []);
        _ProcessPool_logger.set(this, void 0);
        processPoolIdx++;
        __classPrivateFieldSet(this, _ProcessPool_free, new Set(Array.from({ length: poolSize }, (_, i) => i)), "f");
        __classPrivateFieldSet(this, _ProcessPool_logger, new Logger(`ProcessPool${processPoolIdx}`), "f");
    }
}
_ProcessPool_free = new WeakMap(), _ProcessPool_lifo = new WeakMap(), _ProcessPool_logger = new WeakMap(), _ProcessPool_instances = new WeakSet(), _ProcessPool_jobToString = function _ProcessPool_jobToString(processCmd) {
    return processCmdToString(processCmd);
}, _ProcessPool_spawnWorker = async function _ProcessPool_spawnWorker(processCmd, workerId) {
    const printableProcessCmd = __classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_jobToString).call(this, processCmd);
    const startTime = Date.now();
    __classPrivateFieldGet(this, _ProcessPool_logger, "f").log(`[Executor${workerId}] Attempting to execute cmd: '${printableProcessCmd}'.`);
    const { cmd, args } = processCmd;
    return new Promise((resolve, reject) => {
        let stdio;
        const capture = !!processCmd.capture;
        const emit = !!processCmd.emit;
        if (capture)
            stdio = 'pipe';
        else if (emit)
            stdio = 'inherit';
        else
            stdio = 'ignore';
        let stdOut = '';
        let stdErr = '';
        // Spawn process
        const child = spawn(cmd, args, { stdio });
        if (capture) {
            child.stdout?.on('data', (data) => {
                stdOut += data;
                if (emit) {
                    process.stdout.write(data);
                }
            });
            child.stderr?.on('data', (err) => {
                stdErr += err;
                if (emit) {
                    process.stdout.write(err);
                }
            });
        }
        let alreadyErrored = false;
        // Capture exit code
        child.on('error', (error) => {
            if (alreadyErrored)
                return;
            alreadyErrored = true;
            const message = `[Executor${workerId}] Cmd '${printableProcessCmd}' failed. ${error}`;
            __classPrivateFieldGet(this, _ProcessPool_logger, "f").warn(message);
            reject({ code: 1, stdErr, stdOut, error });
        });
        // Capture process close
        child.on('close', (code) => {
            if (code === 0) {
                __classPrivateFieldGet(this, _ProcessPool_logger, "f").log(`[Executor${workerId}] Cmd '${printableProcessCmd}' succeeded in ${(Date.now() - startTime) / 1000} seconds.`);
                resolve({ code, stdErr, stdOut });
            }
            else {
                if (alreadyErrored)
                    return;
                alreadyErrored = true;
                const stdErrTrimmed = stdErr.trim();
                const message = `[Executor${workerId}] Cmd '${printableProcessCmd}' exited non zero code '${code}'${stdErrTrimmed ? `.\n${stdErrTrimmed}` : '.'}`;
                __classPrivateFieldGet(this, _ProcessPool_logger, "f").warn(message);
                reject({ code, stdErr, stdOut, error: new Error(message) });
            }
        });
    });
}, _ProcessPool_checkForJobsAfterWorkerFinish = async function _ProcessPool_checkForJobsAfterWorkerFinish(workerId) {
    // Free ourselves
    __classPrivateFieldGet(this, _ProcessPool_free, "f").add(workerId);
    // Check the status of the lifo queue, exit if there is nothing to do.
    const job = __classPrivateFieldGet(this, _ProcessPool_lifo, "f").pop();
    if (!job)
        return;
    // This worker is now considered busy with the taken job
    __classPrivateFieldGet(this, _ProcessPool_free, "f").delete(workerId);
    // Run the job and resolve/reject the inverted promise on completion / error.
    __classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_spawnWorker).call(this, job, workerId)
        .then((result) => job.deferredPromise.resolve(result))
        .catch((err) => job.deferredPromise.reject(err))
        .finally(() => __classPrivateFieldGet(this, _ProcessPool_instances, "m", _ProcessPool_checkForJobsAfterWorkerFinish).call(this, workerId));
};
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