初始化提交

common/modules/mixly-modules/workers/web/serial-worker.js

@@ -0,0 +1,123 @@
+// importScripts('../../web-modules/workerpool.min.js');
+const workerpool = require('../../web-modules/workerpool.min.js');
+
+const encoder = new TextEncoder();
+const decoder = new TextDecoder('utf-8');
+
+class SerialWorker {
+    constructor(serial) {
+        this.serial = serial;
+        this.receiveBuffer = [];
+        this.receiveStr = '';
+        this.bufferLength = 0;
+        const test = setInterval(() => {
+            const message = generateRandomString(5);
+            this.onData(encoder.encode(message));
+        }, 1000);
+        setTimeout(() => {
+            clearInterval(test);
+        }, 120 * 1000);
+    }
+
+    onOpen() {
+
+    }
+
+    onData(data) {
+        /*  UTF-8编码方式
+        *   ------------------------------------------------------------
+        *   |1字节 0xxxxxxx                                             |
+        *   |2字节 110xxxxx 10xxxxxx                                    |
+        *   |3字节 1110xxxx 10xxxxxx 10xxxxxx                           |
+        *   |4字节 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx                  |
+        *   |5字节 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx         |
+        *   |6字节 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx|
+        *   ------------------------------------------------------------
+        */
+        for (let i in data) {
+            if ((data[i] & 0x80) === 0x00) {
+                // 1字节
+                this.receiveBuffer = [];
+                this.bufferLength = 0;
+                this.receiveStr += String.fromCharCode(data[i]);
+            } else if ((data[i] & 0xc0) === 0x80) {
+                // 2字节以上的中间字节，10xxxxxx
+                // 如果没有起始头，则丢弃这个字节
+                if (!this.receiveBuffer.length) {
+                    return;
+                }
+                // 如果不是2字节及以上的起始头，则丢弃这个字节
+                if (this.bufferLength < 2) {
+                    return;
+                }
+                this.receiveBuffer.push(data[i]);
+                if (this.bufferLength === this.receiveBuffer.length) {
+                    this.receiveStr += decoder.decode(new Uint8Array(this.receiveBuffer));
+                    this.receiveBuffer = [];
+                }
+            } else {
+                // 2字节以上的起始头
+                if (this.receiveBuffer) {
+                    this.receiveBuffer = [];
+                }
+                this.bufferLength = this.#getBufferLength(data[i]);
+                this.receiveBuffer.push(data[i]);
+            }
+        }
+    }
+
+    onError() {
+
+    }
+
+    onClose() {
+
+    }
+
+    #getBufferLength(data) {
+        let len = 2;
+        if ((data & 0xFC) === 0xFC) {
+            len = 6;
+        } else if ((data & 0xF8) === 0xF8) {
+            len = 5;
+        } else if ((data & 0xF0) === 0xF0) {
+            len = 4;
+        } else if ((data & 0xE0) === 0xE0) {
+            len = 3;
+        } else if ((data & 0xC0) === 0xC0) {
+            len = 2;
+        }
+        return len;
+    }
+}
+
+const createSerialWork = function(serial) {
+    return new Promise((resolve, reject) => {
+        console.log(serial)
+        const serialWork = new SerialWorker(serial);
+        const test = setInterval(() => {
+            const data = serialWork.receiveStr;
+            serialWork.receiveStr = '';
+            workerpool.workerEmit({
+                status: 'data',
+                data: data
+            });
+        }, 5000);
+        setTimeout(() => {
+            workerpool.workerEmit({
+                status: 'close'
+            });
+            resolve();
+        }, 120 * 1000);
+    });
+}
+
+function generateRandomString() {
+  return '1234';
+}
+
+
+workerpool.worker({
+    createSerialWork,
+    generateRandomString
+});