Remove Buffer constructor usage (#409)

README.md

@@ -134,8 +134,8 @@ bleno.startAdvertisingIBeacon(uuid, major, minor, measuredPower[, callback(error
 ##### Start advertising with EIR data (__Linux only__)
 
 ```javascript
-var scanData = new Buffer(...); // maximum 31 bytes
-var advertisementData = new Buffer(...); // maximum 31 bytes
+var scanData = Buffer.alloc(...); // maximum 31 bytes
+var advertisementData = Buffer.alloc(...); // maximum 31 bytes
 
 bleno.startAdvertisingWithEIRData(advertisementData[, scanData, callback(error)]);
 ```
@@ -227,7 +227,7 @@ Parameters to handler are
 
 ```javascript
 var result = Characteristic.RESULT_SUCCESS;
-var data = new Buffer( ... );
+var data = Buffer.alloc( ... );
 
 callback(result, data);
 ```

examples/battery-service/battery-level-characteristic.js

@@ -18,7 +18,7 @@ var BatteryLevelCharacteristic = function() {
       }),
       new Descriptor({
         uuid: '2904',
-        value: new Buffer([0x04, 0x01, 0x27, 0xAD, 0x01, 0x00, 0x00 ]) // maybe 12 0xC unsigned 8 bit
+        value: Buffer.from([0x04, 0x01, 0x27, 0xAD, 0x01, 0x00, 0x00 ]) // maybe 12 0xC unsigned 8 bit
       })
     ]
   });
@@ -34,11 +34,11 @@ BatteryLevelCharacteristic.prototype.onReadRequest = function(offset, callback)
       var percent = data.split('\t')[1].split(';')[0];
       console.log(percent);
       percent = parseInt(percent, 10);
-      callback(this.RESULT_SUCCESS, new Buffer([percent]));
+      callback(this.RESULT_SUCCESS, Buffer.from([percent]));
     });
   } else {
     // return hardcoded value
-    callback(this.RESULT_SUCCESS, new Buffer([98]));
+    callback(this.RESULT_SUCCESS, Buffer.from([98]));
   }
 };
 

examples/blink1/blink1-fade-rgb-characteristic.js

@@ -34,7 +34,7 @@ Blink1FaceRGBCharacteristic.prototype.onWriteRequest = function(data, offset, wi
 
     this.blink1.fadeToRGB(fadeMillis, r, g, b, function() {
       if (this.updateValueCallback) {
-        this.updateValueCallback(new Buffer([r, g, b]));
+        this.updateValueCallback(Buffer.from([r, g, b]));
       }
     }.bind(this));
 

examples/blink1/hardware-revision-characteristic.js

@@ -26,7 +26,7 @@ HardwareRevisionCharacteristic.prototype.onReadRequest = function(offset, callba
     callback(this.RESULT_ATTR_NOT_LONG, null);
   } else {
     this.blink1.version(function(version) {
-      callback(this.RESULT_SUCCESS, new Buffer(version));
+      callback(this.RESULT_SUCCESS, Buffer.from(version));
     }.bind(this));
   }
 };

examples/blink1/serial-number-characteristic.js

@@ -9,7 +9,7 @@ function SerialNumberCharacteristic(blink1) {
   SerialNumberCharacteristic.super_.call(this, {
     uuid: '2a25',
     properties: ['read'],
-    value: new Buffer(blink1.serialNumber),
+    value: Buffer.from(blink1.serialNumber),
     descriptors: [
       new BlenoDescriptor({
         uuid: '2901',

examples/echo/characteristic.js

@@ -11,7 +11,7 @@ var EchoCharacteristic = function() {
     value: null
   });
 
-  this._value = new Buffer(0);
+  this._value = Buffer.alloc(0);
   this._updateValueCallback = null;
 };
 

examples/pizza/pizza-bake-characteristic.js

@@ -31,7 +31,7 @@ PizzaBakeCharacteristic.prototype.onWriteRequest = function(data, offset, withou
     var self = this;
     this.pizza.once('ready', function(result) {
       if (self.updateValueCallback) {
-        var data = new Buffer(1);
+        var data = Buffer.alloc(1);
         data.writeUInt8(result, 0);
         self.updateValueCallback(data);
       }

examples/pizza/pizza-crust-characteristic.js

@@ -47,7 +47,7 @@ PizzaCrustCharacteristic.prototype.onReadRequest = function(offset, callback) {
     callback(this.RESULT_ATTR_NOT_LONG, null);
   }
   else {
-    var data = new Buffer(1);
+    var data = Buffer.alloc(1);
     data.writeUInt8(this.pizza.crust, 0);
     callback(this.RESULT_SUCCESS, data);
   }

examples/pizza/pizza-toppings-characteristic.js

@@ -37,7 +37,7 @@ PizzaToppingsCharacteristic.prototype.onReadRequest = function(offset, callback)
     callback(this.RESULT_ATTR_NOT_LONG, null);
   }
   else {
-    var data = new Buffer(2);
+    var data = Buffer.alloc(2);
     data.writeUInt16BE(this.pizza.toppings, 0);
     callback(this.RESULT_SUCCESS, data);
   }

lib/bleno.js

@@ -134,9 +134,9 @@ Bleno.prototype.startAdvertisingIBeacon = function(uuid, major, minor, measuredP
     }
   } else {
     var undashedUuid =  UuidUtil.removeDashes(uuid);
-    var uuidData = new Buffer(undashedUuid, 'hex');
+    var uuidData = Buffer.from(undashedUuid, 'hex');
     var uuidDataLength = uuidData.length;
-    var iBeaconData = new Buffer(uuidData.length + 5);
+    var iBeaconData = Buffer.alloc(uuidData.length + 5);
 
     for (var i = 0; i < uuidDataLength; i++) {
       iBeaconData[i] = uuidData[i];

lib/descriptor.js

@@ -4,7 +4,7 @@ var UuidUtil = require('./uuid-util');
 
 function Descriptor(options) {
   this.uuid = UuidUtil.removeDashes(options.uuid);
-  this.value = options.value || new Buffer(0);
+  this.value = options.value || Buffer.alloc(0);
 }
 
 Descriptor.prototype.toString = function() {

lib/hci-socket/crypto.js

@@ -15,7 +15,7 @@ function c1(k, r, pres, preq, iat, ia, rat, ra) {
   var p2 = Buffer.concat([
     ra,
     ia,
-    new Buffer('00000000', 'hex')
+    Buffer.from('00000000', 'hex')
   ]);
 
   var res = xor(r, p1);
@@ -47,7 +47,7 @@ function e(key, data) {
 }
 
 function xor(b1, b2) {
-  var result = new Buffer(b1.length);
+  var result = Buffer.alloc(b1.length);
 
   for (var i = 0; i < b1.length; i++) {
     result[i] = b1[i] ^ b2[i];
@@ -57,7 +57,7 @@ function xor(b1, b2) {
 }
 
 function swap(input) {
-  var output = new Buffer(input.length);
+  var output = Buffer.alloc(input.length);
 
   for (var i = 0; i < output.length; i++) {
     output[i] = input[input.length - i - 1];

lib/hci-socket/gap.js

@@ -41,7 +41,7 @@ Gap.prototype.startAdvertising = function(name, serviceUuids) {
 
   if (serviceUuids && serviceUuids.length) {
     for (i = 0; i < serviceUuids.length; i++) {
-      var serviceUuid = new Buffer(serviceUuids[i].match(/.{1,2}/g).reverse().join(''), 'hex');
+      var serviceUuid = Buffer.from(serviceUuids[i].match(/.{1,2}/g).reverse().join(''), 'hex');
 
       if (serviceUuid.length === 2) {
         serviceUuids16bit.push(serviceUuid);
@@ -59,8 +59,8 @@ Gap.prototype.startAdvertising = function(name, serviceUuids) {
     advertisementDataLength += 2 + 16 * serviceUuids128bit.length;
   }
 
-  var advertisementData = new Buffer(advertisementDataLength);
-  var scanData = new Buffer(scanDataLength);
+  var advertisementData = Buffer.alloc(advertisementDataLength);
+  var scanData = Buffer.alloc(scanDataLength);
 
   // flags
   advertisementData.writeUInt8(2, 0);
@@ -97,7 +97,7 @@ Gap.prototype.startAdvertising = function(name, serviceUuids) {
 
   // name
   if (name && name.length) {
-    var nameBuffer = new Buffer(name);
+    var nameBuffer = Buffer.from(name);
 
     scanData.writeUInt8(1 + nameBuffer.length, 0);
     scanData.writeUInt8(0x08, 1);
@@ -116,8 +116,8 @@ Gap.prototype.startAdvertisingIBeacon = function(data) {
   var advertisementDataLength = 5 + manufacturerDataLength;
   var scanDataLength = 0;
 
-  var advertisementData = new Buffer(advertisementDataLength);
-  var scanData = new Buffer(0);
+  var advertisementData = Buffer.alloc(advertisementDataLength);
+  var scanData = Buffer.alloc(0);
 
   // flags
   advertisementData.writeUInt8(2, 0);
@@ -136,8 +136,8 @@ Gap.prototype.startAdvertisingIBeacon = function(data) {
 };
 
 Gap.prototype.startAdvertisingWithEIRData = function(advertisementData, scanData) {
-  advertisementData = advertisementData || new Buffer(0);
-  scanData = scanData || new Buffer(0);
+  advertisementData = advertisementData || Buffer.alloc(0);
+  scanData = scanData || Buffer.alloc(0);
 
   debug('startAdvertisingWithEIRData: advertisement data = ' + advertisementData.toString('hex') + ', scan data = ' + scanData.toString('hex'));