我有一個iPhone應用程序,我在模擬器上運行。 XCode ver 3.2.6/4.3。我試圖通過無線網絡與個人電腦串口上的收音機進行通信,無論是在同一臺服務器上...我試過NSStream和GCDAsyncSocket(只是爲了確保)。收音機有自己的IP地址和端口號。它實際上是一個TCP/IP wifi模塊。在改變PC上的遠程訪問接受我的IP地址之後,我終於可以連接了,但是我立即就開始了,我假設這是在我嘗試讀取或寫入時。使用Telnet時,連接然後斷開連接也會發生同樣的情況。當有人連接時,收音機發出HELLO,所以Telnet必須在發送數據後嘗試讀取。我正在猜測。我以爲我能夠連接,我應該能夠讀/寫。 (是的,新手在這裏)AsycnSocket無法通過WiFi連接到TCP串行端口
我會很感激任何想法或方向。我一直在研究一個多星期,並去瘋狂。
謝謝。我添加了下面的代碼以及錯誤消息。
這是錯誤消息: socketDidDisconnect:withError: 「錯誤域= NSOSStatusErrorDomain 代碼= -9844」 該操作不能完成。 (OSStatus誤差 -9844。) 「的UserInfo = 0x4c38a60 {}」
- (IBAction)performConnection:(id)sender
{
asyncSocket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_main_queue()];
NSError *error = nil;
uint16_t port = [[[self serverPort] text] intValue];
if (![asyncSocket connectToHost:[serverAddr text] onPort:port error:&error])
{
DDLogError(@"Unable to connect due to invalid configuration: %@", error);
[self debugPrint:[NSString stringWithFormat:@"Unable to connect due to invalid configuration: %@", error]];
}
else
{
DDLogVerbose(@"Connecting...IP:%@, port:%i", [serverAddr text], port);
}
}
- (void)socket:(GCDAsyncSocket *)sock didConnectToHost:(NSString *)host port:(UInt16)port
{
DDLogInfo(@"socket:%p didConnectToHost:%@ port:%hu", sock, host, port);
NSMutableDictionary *settings = [NSMutableDictionary dictionaryWithCapacity:3];
[settings setObject:@"XXX.XXX.X.XXX"
forKey:(NSString *)kCFStreamSSLPeerName];
// In fact, don't even validate the certificate chain
[settings setObject:[NSNumber numberWithBool:NO]
forKey:(NSString *)kCFStreamSSLValidatesCertificateChain];
[settings setObject:(NSString*)kCFStreamPropertySocketSecurityLevel
forKey:(NSString*)kCFStreamSocketSecurityLevelNegotiatedSSL];
DDLogVerbose(@"Starting TLS with settings:\n%@", settings);
[sock startTLS:settings];
[self debugPrint:[NSString stringWithFormat:@"socket:didConnectToHost:%@ port:%hu", host, port]];
//[sock readDataToData:[GCDAsyncSocket CRLFData] withTimeout:-1 tag:0];
[sock readDataWithTimeout:-1 tag:0];
}
- (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag
{
DDLogVerbose(@"socket:didWriteDataWithTag:");
[sock readDataWithTimeout:-1 tag:0];
}
- (void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag
{
DDLogVerbose(@"socket:didReadData:withTag:");
NSString *response = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];
NSLog(@"read response:%@", response);
[self debugPrint:[NSString stringWithFormat:@"Read: \n%@",response]];
[response release];
//NSData *newline = [@"\n" dataUsingEncoding:NSASCIIStringEncoding];
//[sock readDataToData:newline withTimeout:-1 tag: 0];
[sock readDataWithTimeout:-1 tag:0];
}
- (IBAction)sendBuf:(id)sender
{
if ([[bufOut text] length] > 0)
{
NSString *requestStr = [NSString stringWithFormat:@"%@\r\n", [bufOut text]];
NSLog(@"Sending:%@",requestStr);
NSData *requestData = [requestStr dataUsingEncoding:NSASCIIStringEncoding];
[asyncSocket writeData:requestData withTimeout:-1.0 tag:0];
[self debugPrint:[NSString stringWithFormat:@"Sent: \n%@",requestStr]];
}
}
我想你應該添加一些代碼來舉例說明它 – ppaulojr