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POUnable to send a big list over TCP Sockets - Blackberry
 

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  1. POUnable to send a big list over TCP Sockets - Blackberry
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    <p>I'm trying to send a list of 600 records over TCP/IP sockets using a java server and a Blackberry client. But every time it reaches the 63th record it stops, the odd thing about this is that if I only send 200 records they are sent ok.</p> <p>I haven't been able to understand why it happens, only that 63 records equals aprox to 4kB, basically it sends:</p> <ul> <li>an integer with the total number of records to be sent And for every record</li> <li>an integer with the length of the string</li> <li>the string </li> <li>a string terminator "$$$"</li> </ul> <p>Since i need to send the whole 600 i have tried to close the InputStreamReader and reopen it, also reset it but without any result.</p> <p>Does anybody else have experienced this behaviour? thanks in advanced.</p> <p>EDIT</p> <p>Here the code that receives:</p> <pre><code>private String readfromserver() throws IOException { int len=_in.read(); // receives the string length if (len==0) // if len=0 then the string was empty return ""; else { char[] input = new char[len+1]; for (int i = 0; i &lt; len; ++i) input[i] = (char)_in.read(); StringBuffer s = new StringBuffer(); s.append(input); return s.toString(); } } private void startRec(String data) throws IOException { boolean mustcontinue=true; int len=_in.read(); // read how many records is about to receive if (len==0) { scr.writelog("There is no data to receive"); } else { for(int i=0; i&lt;len; i++) if (mustcontinue) { mustcontinue=mustcontinue &amp;&amp; showdata(readfromserver()); } else { scr.writelog("Inconsistency error #19"); } } } </code></pre> <p>the function showdata only shows the received string in a LabelField.</p> <p>The code in the server:</p> <pre><code>try { _out.write(smultiple.size()); // send the number of records _out.flush(); for (int x=0; x&lt;smultiple.size(); x++) { int l=smultiple.elementAt(x).length(); _out.write(l); // send string length if (l&gt;0) _out.write(smultiple.elementAt(x)); // send string } _out.flush(); } catch (Exception e) { principal.dblog(e.toString()); } </code></pre> <p>smultiple is a vector containing the strings and everyone already have the terminator $$$.</p> <p>Thanks.</p>
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    1. COThis probably isn't directly related to your problem, but you don't need to send *both* the length of the string *and* a string terminator. What if the string you're sending contains "$$$"?
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      1. USGreg Hewgill
    2. COCan you include the relevant blackberry code in your question?
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      1. POUnable to send a big list over TCP Sockets - Blackberry
      1. USMichael Donohue
    3. COSince i send the length of the string i use the terminator only to verify if the string i'm receiving is fine, that why i use it :)
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      1. USCesar
 

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