Refactoring

lib/ProcessPool.js

@@ -0,0 +1,62 @@
+/**
+ * @class
+ * Represents a download process that spawns yt-dlp.
+ */
+
+class ProcessPool {
+    constructor() {
+        this._pool = new Map();
+        this._size = 0;
+    }
+
+    /**
+     * Pool size getter
+     * @returns {number} pool's size
+     */
+    size() {
+        return this._size;
+    }
+
+    /**
+     * Add a process to the pool
+     * @param {Process} process 
+     */
+    add(process) {
+        this._pool.set(process.getPid(), process)
+    }
+
+    /**
+     * Delete a process from the pool
+     * @param {Process} process 
+     */
+    remove(process) {
+        this._pool.delete(process.getPid())
+    }
+
+    /**
+     * Delete a process from the pool by its pid
+     * @param {number} pid 
+     */
+    removeByPid(pid) {
+        this._pool.delete(pid)
+    }
+
+    /**
+     * get an iterator for the pool
+     * @returns {IterableIterator} iterator 
+     */
+    iterator() {
+        return this._pool.entries()
+    }
+
+    /**
+     * get a process by its pid
+     * @param {number} pid 
+     * @returns {Process}
+     */
+    getByPid(pid) {
+        return this._pool.get(pid)
+    }
+}
+
+module.exports = ProcessPool;