A node module for smart subprocess handling with support for promises and streamlined subprocess communication.
Given the provided files and their contents, the comprehensive documentation for using @push.rocks/smartspawn with TypeScript and in a manner that provides thorough examples and descriptions of features and scenarios is extensive. However, I'll outline a concise and informative usage guide that can serve as a helpful starting point. For an in-depth understanding and a complete reference to all features, further reading, exploration, and experimentation with the library are recommended.
To install @push.rocks/smartspawn, open your terminal and run the following command:
``bash`
npm install @push.rocks/smartspawn
This command fetches the package from npm and adds it to your project's dependencies.
This guide uses TypeScript and ESM syntax to demonstrate how to utilize @push.rocks/smartspawn for smart subprocess handling in your application.
First, ensure that your TypeScript environment is set up to support ECMAScript modules (ESM). Your tsconfig.json should include:
`json`
{
"compilerOptions": {
"module": "ESNext",
"target": "ESNext",
"moduleResolution": "node"
}
}
ThreadSimple class allows you to manage subprocesses effectively. Here's how to start and stop a simple thread:
`typescript
// Import the necessary components from the library
import { ThreadSimple } from '@push.rocks/smartspawn';
// Define a function that creates, starts, and stops a thread
async function demonstrateThreadSimple() {
// Create an instance of ThreadSimple
const mySimpleThread = new ThreadSimple('./path/to/worker.js');
// Start the thread
await mySimpleThread.start();
console.log('Thread has started.');
// Stop the thread
await mySimpleThread.stop();
console.log('Thread has stopped.');
}
// Call the function to demonstrate its functionality
demonstrateThreadSimple();
`
The ./path/to/worker.js should be the path to your worker script that you want to execute in a separate process.
smartspawn also provides functionality to wrap subprocesses, allowing you to modify or set up an environment before execution. Here's how to wrap and unwrap subprocesses:
`typescript
import { startSpawnWrap, endSpawnWrap } from '@push.rocks/smartspawn';
// Start a wrap
startSpawnWrap('path/to/script', ['arg1', 'arg2'], { ENV_VAR: 'value' });
console.log('Subprocess wrapped.');
// End the wrap when it's no longer needed
endSpawnWrap();
console.log('Subprocess unwrapped.');
`
@push.rocks/smartspawn integrates with the threads package to provide advanced threading capabilities. Here's a brief example showing how you might utilize it for more complex scenarios:
`typescript
import { Thread, spawn, Worker } from 'threads';
async function advancedThreadExample() {
const thread = await spawn(new Worker('./worker'));
const result = await thread.doWork();
console.log(Result from thread: ${result});
await Thread.terminate(thread);
}
advancedThreadExample();
`
Ensure you explore the threads documentation for a more detailed understanding of creating workers and communicating between the main process and threads.
The @push.rocks/smartspawn package simplifies managing subprocesses in your Node.js applications, offering straightforward APIs for starting, stopping, and communicating with child processes. Whether you need to execute a simple script in the background or leverage sophisticated multi-threading capabilities, smartspawn provides the tools necessary to implement these features efficiently and robustly.
Remember, the examples above are starting points. Review the source code, tests, and type declarations for a comprehensive understanding of everything @push.rocks/smartspawn` and its integrated packages can do. Experiment with the library in your projects to best learn how to utilize its full potential in real-world applications.
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