fix: 忙时取消对电池电量查询和录音中文件的查询，避免通道堵塞

src/utils/jensen.js

@@ -383,6 +383,10 @@ function Jensen(log, conn) {
     console.log('device', device);
   };
 
+  this.busy = function() {
+    return Boolean(current);
+  }
+
   const tryReceive = function () {
     if (device)
       // console.log('trace', device);
@@ -1104,6 +1108,11 @@ Jensen.prototype.formatCard = function (seconds) {
 
 Jensen.prototype.getRecordingFile = function (seconds) {
   if ((this.model == 'hidock-h1' || this.model == 'hidock-h1e') && this.versionNumber < 327733) return null;
+  if (this.busy())
+  {
+    Logger.debug('jensen', 'dispatcher', 'cancel recording file query...');
+    return null;
+  }
   return this.send(new Command(GET_RECORDING_FILE), seconds);
 };
 
@@ -1139,6 +1148,12 @@ Jensen.prototype.getFileBlock = async function (filename, length, ondata) {
 Jensen.prototype.getBatteryStatus = function(seconds)
 {
   if (this.model != 'hidock-p1') return null;
+  // 如果正在处理其它消息任务，则直接取消电池电量查询消息
+  if (this.busy())
+  {
+    Logger.info('jensen', 'dispatcher', 'cancel battery status query...');
+    return null;
+  }
   return this.send(new Command(GET_BATTERY_STATUS), seconds);
 }
 Jensen.prototype.writeSerialNumber = async function (sn) {