closing a connection: timing

Bluez-users Marco Trudel 2 participants 2 messages Mar 13, 2005 – Mar 14, 2005 Bluetooth drivers

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Marco Trudel

author

2005-03-13 17:31 UTC #0 lore raw

Hello everybody

this is my "server-code":

int client = accept(sock, (struct sockaddr *)&addr, &alen)) char out[] = "200 100";
send(client, out, strlen(out), 0);
// sleep(2);
close(client);

I wrote a little client with the avetana library on my laptop and i'm able to receive the message "200 100".

I tested it with my mobile phone (with exactly the same code as with the avetana library). Here I'm unable to receive the data. as soon as i try to open the inputstream, an exception ("connection already closed") is thrown. If I uncommend the sleep, it works an i get "200 100".
I now don't know where the source of the problem could be. Do I miss something important? Mobile Phone bug?

btw, I tested it with the bluetooth-terminal from kde and only receive "200 10". -> where is the last "0"?

kind regards
Marco Trudel

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Marcel Holtmann

maintainer

2005-03-14 10:24 UTC #1 lore raw

Hi Marco,

Quoted 20 lines

this is my "server-code":
int client = accept(sock, (struct sockaddr *)&addr, &alen)) char out[] = "200 100";
send(client, out, strlen(out), 0);
// sleep(2);
close(client);
I wrote a little client with the avetana library on my laptop and i'm able to receive the message "200 100".
I tested it with my mobile phone (with exactly the same code as with the avetana library). Here I'm unable to receive the data. as soon as i try to open the inputstream, an exception ("connection already closed") is thrown. If I uncommend the sleep, it works an i get "200 100".
I now don't know where the source of the problem could be. Do I miss something important? Mobile Phone bug?

Quoted 2 lines

btw, I tested it with the bluetooth-terminal from kde and only receive "200 10". -> where is the last "0"?

I have no idea with the Java problem, but if you send only strlen() bytes then you miss the null byte at the the end. So even for a char array you should use sizeof(). If this is a text based protocol you start to run over RFCOMM send add "\r\n" may also be a good idea.

Regards

Marcel