Hi Alessandro,
Just receive with FWSocket.Receive(...) in your char array. If there is
really no data then nothing will be copied into your buffer and the
result will be <= 0. Then just exit the event (don't loop).
When there is again data then OnDataAvailable will be called again.
Rgds
Met vriendelijke groeten,
Wilfried Mestdagh
Op 09-01-18 om 19:53 schreef Alessandro Miorelli:
Thank you so much Wilfred for your quick answer.
One question:
I do that
int length = FWSocket->RcvdCount;
if(length == 0)
return;
char *str = new char[length + 1];
FWSocket->Receive(str, length);
str[length] = 0;
you wrote that sometimes FWSocket->RcvdCount is 0.
What should I do to receive data?
I prefer to read char array because I have chars with value < 0x20
Thank you
Regards
Ing. Alessandro Miorelli
Software Engineer
Microgate S.r.l.
Via Stradivari 4
39100 Bolzano (BZ) Italy
www.microgate.it
Tel. +390471501532
-----Original Message-----
From: TWSocket [mailto:twsocket-boun...@lists.elists.org] On Behalf Of
Wilfried Mestdagh
Sent: Tuesday, January 9, 2018 6:07 PM
To: twsoc...@elists.org
Subject: Re: [twsocket] ICS OnDataAvailable
I see a second problem in your code:
} while (length != totalDataReceived && FWSocket->State == wsConnected &&
!Terminated && timeout < MAX_TIMEOUT);
Dont loop in DataAvailable. Just receive the part of data that is received
and exit. When next chunck of data come in the OnDataAvailable will be fired
again. TCP protocol does not respect data boundaries.
Met vriendelijke groeten,
Wilfried Mestdagh
Op 09-01-18 om 18:01 schreef Wilfried Mestdagh:
Hi,
The problem could be in this peace of code:
int length = FWSocket->RcvdCount;
if(length == 0)
{
Debug::DebugString(AnsiString("FWSocketDataAvailable length ")
+ IntToStr(length));
return;
}
RcvdCount is not reliable. This is not a TWSocket problem but a
Windows problem. Even if it returns zero the you should try to receive
data. So just leave that part out of it.
Rgds, Wilfried
Met vriendelijke groeten,
Wilfried Mestdagh
Op 09-01-18 om 15:48 schreef Alessandro Miorelli:
Hi,
I'm working with ICS and BCB6
All works fine but sometimes I don't receive OnDataAvailable event
anymore.
In attach the code.
Please could you help me
Regards
Ing. Alessandro Miorelli
Software Engineer
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