NodeWaves Development Roadmap

Implementation Examples

Key code snippets and architectural patterns

Smart Contract Structure

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

contract NodeRegistry {
    struct Node {
        address owner;
        string ipAddress;
        uint256 stakeAmount;
        uint256 reputation;
        bool isActive;
        uint256 lastPing;
    }

    mapping(address => Node) public nodes;
    address[] public activeNodes;

    function registerNode(string memory _ipAddress) external payable {
        require(msg.value >= MINIMUM_STAKE, "Insufficient stake");
        require(!nodes[msg.sender].isActive, "Node already registered");

        nodes[msg.sender] = Node({
            owner: msg.sender,
            ipAddress: _ipAddress,
            stakeAmount: msg.value,
            reputation: 100,
            isActive: true,
            lastPing: block.timestamp
        });

        activeNodes.push(msg.sender);
        emit NodeRegistered(msg.sender, _ipAddress, msg.value);
    }
}

Node Client Core

const { Worker, isMainThread, parentPort } = require('worker_threads');
const Docker = require('dockerode');
const Web3 = require('web3');

class NodeClient {
    constructor(config) {
        this.web3 = new Web3(config.rpcUrl);
        this.docker = new Docker();
        this.resources = config.resources;
        this.isActive = false;
    }

    async start() {
        await this.registerWithNetwork();
        this.startHeartbeat();
        this.listenForTasks();
        this.isActive = true;
    }

    async executeTask(task) {
        const container = await this.docker.createContainer({
            Image: task.dockerImage,
            Cmd: task.command,
            HostConfig: {
                Memory: task.memoryLimit,
                CpuShares: task.cpuShares
            }
        });

        await container.start();
        const result = await container.wait();
        const logs = await container.logs({ stdout: true, stderr: true });
        await container.remove();

        return { success: result.StatusCode === 0, logs: logs.toString() };
    }
}

module.exports = NodeClient;

Orchestration Algorithm

class TaskOrchestrator {
    constructor(nodeManager) {
        this.nodeManager = nodeManager;
        this.taskQueue = [];
        this.runningTasks = new Map();
    }

    async assignTask(task) {
        const suitableNodes = await this.findSuitableNodes(task);
        if (suitableNodes.length === 0) {
            throw new Error('No suitable nodes available');
        }

        const bestNode = this.selectOptimalNode(suitableNodes, task);
        const taskId = this.generateTaskId();

        this.runningTasks.set(taskId, {
            task: task,
            node: bestNode,
            startTime: Date.now(),
            status: 'assigned'
        });

        await this.sendTaskToNode(bestNode, taskId, task);
        return taskId;
    }

    findSuitableNodes(task) {
        return this.nodeManager.getActiveNodes().filter(node => {
            return node.cpuCores >= task.requiredCores &&
                   node.memory >= task.requiredMemory &&
                   node.gpuMemory >= task.requiredGpuMemory &&
                   node.reputation >= task.minReputation;
        });
    }
}