[android-developers] Re: BufferedReader hangs on readline

Are the end of line characters treated differently?

It seem to work fine if I use

char[] buf = new char[8192];

On Sep 11, 7:14 pm, petter <petter.gus...@gmail.com> wrote:
> I'm trying to read a response from a server and
> BufferedReader.readline will block and never return.
>
> If I run the exact same code from the command line on my Linux host it
> works, but it will hang when run on my emulator or device.
>
> Here's the code
>
>         try {
>             System.out.println("will call socket!");
>             mysocket = new Socket(hostname, portno);
>             System.out.println("Connected to " +
> mysocket.getInetAddress() + " on port "
>                                + mysocket.getPort() + " from port " +
> mysocket.getLocalPort() + " of "
>                                + mysocket.getLocalAddress());
>
>             DataOutputStream os = new
> DataOutputStream(mysocket.getOutputStream());
>             DataInputStream is = new
> DataInputStream(mysocket.getInputStream());
>
>             BufferedReader d = new BufferedReader(new
> InputStreamReader(is));
>
>             if (mysocket != null && os != null && is != null) {
>                 os.writeBytes(command + "\r\n");
>                 String line;
>                 System.out.println("calling readline after command:" + command);
>                 line = d.readLine();
>                 System.out.println("got: " + line);
>                 return line;
>             }
>         }
>         catch (UnknownHostException e) {
> ...
>
> What I see on android is:
>
> I/System.out(  644): will call socket!
> I/System.out(  644): Connected to /192.168.1.109 on port 4998 from
> port 52695 of /10.0.2.15
> I/global  (  644): Default buffer size used in BufferedReader
> constructor. It would be better to be explicit if an 8k-char buffer is
> required.
> I/System.out(  644): calling readline after command:getversion
> D/dalvikvm(   98): GC freed 2313 objects / 133904 bytes in 67ms
> W/KeyCharacterMap(  644): No keyboard for id 0
> W/KeyCharacterMap(  644): Using default keymap: /system/usr/keychars/
> qwerty.kcm.
>
> On Linux (OpenJDK) I get what I expect:
>
> Connected to /192.168.1.109 on port 4998 from port 33097 of /
> 192.168.1.104
> calling readline after command:getversion
> got: 710-1001-04
> getversion returned: 710-1001-04
>
> Any ideas? Is the BufferedReader different on Android?

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