Cocoa分布式对象

时间:2009-11-19 17:39:18

标签: objective-c cocoa distributed-objects

我试图弄清楚如何运行这个分布式对象演示让我头疼。我可以在同一台机器上本地运行它。

这是情况。我有一个服务器应用程序,它在远程计算机上生成一个客户端应用程序[使用OpenGLView]。

我可以使用AppleScript轻松完成这项工作。

客户端应用程序似乎是它的OpenGLView窗口OK:

clientPort = [[NSSocketPort alloc] initWithTCPPort:SERVER_PORT];
if(clientPort == nil) continue; else NSLog(@"Port OK");

clientConnection = [NSConnection connectionWithReceivePort:clientPort sendPort:nil];
if(clientConnection == nil) continue; else NSLog(@"Conn OK");

[[NSSocketPortNameServer sharedInstance] registerPort:clientPort name:@"DOTest3_0"];

//Vend Object
@try {
[clientConnection setRootObject:object];
NSLog([NSString stringWithFormat:@"Port %d: Vend OK", (SERVER_PORT + i)]);
return;
} @catch (...) {
NSLog([NSString stringWithFormat:@"Port %d: Vend Next", (SERVER_PORT + i)]);
}

Server App找到Port和Connection,但会引发TimeOut异常:

// Create temporary Pointer to kGLView Object.
  id <NSCoding, kGLViewProtocol> openGLView;

      // Setup Port, Connection, & Proxy
      portTest = (NSSocketPort *)[[NSSocketPortNameServer sharedInstance] portForName:@"DOTest3_0" host:@"*"];
      if (portTest == nil ) continue ; else NSLog(@"Port OK");

      connTest = [NSConnection  connectionWithReceivePort:nil sendPort:portTest];
      if (connTest == nil ) continue ; else NSLog(@"Conn OK");

      openGLView = [[connTest rootProxy] retain];
      if (openGLView == nil ) continue ; else NSLog(@"OpenGL OK");

      [openGLView drawWithRotation: rotationAngle];

  }

我无法弄明白为什么。

我进入客户端PC的控制台: “端口OK” “康恩OK” “Port 8081:Vend OK”

我进入服务器PC的控制台: “端口OK” “康恩OK” 11/18/09 2:05:36 PM DOTest3 [15278] [NSPortCoder sendBeforeTime:sendReplyPort:]超时(10280263936.092180 280263936.092642)1

即使TimeOuts都设置为60秒。

帮助!

-Stephen


服务器:MacMini OS X 10.5 客户端:MacPro OS X 10.6 远程登录,管理等都已启用。


编辑: 根据NSResponder的建议,我已经召集了控制器,但它仍然没有工作。

客户端/销售者:

-(void)vend:(id)object {
  port = [[[NSSocketPort alloc] initWithTCPPort:[self tcpPort]] 
          retain];

  conn = [[NSConnection connectionWithReceivePort:port sendPort:nil] 
          retain];

  for (int i = 0; i < 10; i++) {
    [[NSSocketPortNameServer sharedInstance] registerPort:port
                                                     name:[[self portName] stringByAppendingFormat:@"_%d", i]];
    @try {
      [conn setRootObject:object];
      return;
    } @catch (...) {
      NSLog(@"Vend Next");
      continue;
    }
  }
  NSLog(@"Vend Failed");
}

客户控制器:

-(id)init {
  self = [super init];

  [self setRotationAngle:0.0f];

  clientObj = [[Client alloc] initWithName:@"DOTest4" 
                                   Address:@"10.10.5.104" // mini
                                      Port:48557];

  [clientObj vend:self];

  return self;
}

服务器控制器:

-(IBAction)rotateClient:(id)sender {
  NSArray *vendedObjects = [serverObj getVendedObjects];
  id <NSCoding, ClientController_Protocol> proxy;

  if (vendedObjects != nil) {
    for (int i = 0; i < [vendedObjects count]; i++) {
      proxy = [vendedObjects objectAtIndex:i];
      [proxy rotate];
    }
  }
    // release
  [vendedObjects release];
}

服务器/(抓住商品)

-(NSArray *)getVendedObjects {

  NSArray *vendedObjects = [[[NSArray alloc] init] retain];
  NSSocketPort *port;
  NSConnection *conn;

  for (int i = 0; i< 10; i++) {
    // Get Port Object
    port = (NSSocketPort *)[[NSSocketPortNameServer sharedInstance] 
                           portForName:[[self portName] stringByAppendingFormat:@"_%d", i]
                           host:[self addressRemote]];
    if (port == nil) continue;
    // Create Connection with Timeouts
    conn = [NSConnection connectionWithReceivePort:nil sendPort:port];
    if (conn == nil) continue;

    [conn setReplyTimeout:(NSTimeInterval)60.0];
    [conn setRequestTimeout:(NSTimeInterval)60.0];

    // Get VendedObject of Connection
    vendedObjects = [[vendedObjects arrayByAddingObject:[conn rootProxy]] retain];
  }

  return vendedObjects;
}

叹息......我确信我只是在这里忽略了一些真正可靠的东西。

-S!

1 个答案:

答案 0 :(得分:1)

我从来没有见过有人试图在DO链接上销售视图或窗口,我很惊讶它甚至在本地主机上都有效。无论何时我使用DO,它都是从服务器控制器层中的对象到客户端中的相应控制器。