Merge pull request #5 from yesmeck/master

Implement setBroadcast()

UdpSocket.ios.js

@@ -205,7 +205,18 @@ UdpSocket.prototype.address = function() {
 }
 
 UdpSocket.prototype.setBroadcast = function(flag) {
-  // nothing yet
+  var self = this
+
+  if (this._state !== STATE.BOUND) {
+    throw new Error('you must bind before setBroadcast()')
+  }
+
+  Sockets.setBroadcast(this._id, flag, function(err) {
+    if (err) {
+      self._debug('failed to set broadcast', err)
+      return self.emit('error', err)
+    }
+  });
 }
 
 UdpSocket.prototype.setTTL = function(ttl) {

UdpSocketClient.h

@@ -82,4 +82,9 @@ typedef enum RCTUDPError RCTUDPError;
  */
 - (void)close;
 
+/**
+ * Enable broadcast
+ */
+- (BOOL)setBroadcast:(BOOL) flag error:(NSError **) error;
+
 @end

UdpSocketClient.m

@@ -126,6 +126,12 @@ remoteAddress:(NSString *)address
   [_udpSocket close];
 }
 
+- (BOOL) setBroadcast:(BOOL)flag
+                error:(NSError **)error
+{
+  return [_udpSocket enableBroadcast:flag error:error];
+}
+
 - (void)udpSocket:(GCDAsyncUdpSocket *)sock didReceiveData:(NSData *)data
                   fromAddress:(NSData *)address
                   withFilterContext:(id)filterContext

UdpSockets.m

@@ -82,6 +82,21 @@ RCT_EXPORT_METHOD(close:(NSString*)cId
     if (callback) callback(@[]);
 }
 
+RCT_EXPORT_METHOD(setBroadcast:(NSString*)cId
+                  flag:(BOOL)flag
+                  callback:(RCTResponseSenderBlock)callback) {
+    UdpSocketClient* client = [self findClient:cId callback:callback];
+    if (!client) return;
+
+    NSError *error = nil;
+    if (![client setBroadcast:flag error:&error])
+    {
+        callback(@[error]);
+        return;
+    }
+    callback(@[[NSNull null]]);
+}
+
 - (void) onData:(UdpSocketClient*) client data:(NSData *)data host:(NSString *)host port:(uint16_t)port
 {
     NSString *clientID = [[_clients allKeysForObject:client] objectAtIndex:0];