SocketFlags.None doesnot work

[Hasan O]

Hi , i have problem about sending data over socket . It waits for another
socket.send

// str = Encoding.ASCII.GetBytes("hello");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); // return
"hello to you "

// str =Encoding.ASCII.GetBytes( "how_are_you ");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None);// return
"fine"

it sends like this "hellohow_are_you" , but it is wrong , how can i solve it
?

thanks in advance

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Simple, you have to either send a terminator or before sending the string
send the # of bytes you will send.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:uU**************@TK2MSFTNGP12.phx.gbl...

Hi , i have problem about sending data over socket . It waits for another
socket.send

// str = Encoding.ASCII.GetBytes("hello");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); // return
"hello to you "

// str =Encoding.ASCII.GetBytes( "how_are_you ");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None);// return
"fine"

it sends like this "hellohow_are_you" , but it is wrong , how can i solve
it ?

thanks in advance

[Hasan O]

Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it works
correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:uN*************@tk2msftngp13.phx.gbl...

Hi,

Simple, you have to either send a terminator or before sending the string
send the # of bytes you will send.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:uU**************@TK2MSFTNGP12.phx.gbl...

Hi , i have problem about sending data over socket . It waits for another
socket.send

// str = Encoding.ASCII.GetBytes("hello");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); // return
"hello to you "

// str =Encoding.ASCII.GetBytes( "how_are_you ");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None);// return
"fine"

it sends like this "hellohow_are_you" , but it is wrong , how can i solve
it ?

thanks in advance

[Adam Clauss]

Is that because you are stepping through line by line?

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); // return
"hello to you "

That use of socket.Available is the problem. If execution goes too quickly,
the receive will get called before the remote client has time to actually
send anything. Thus socket.Available = 0. And the receive immediately
returns without actually receiving anythign. It then goes on to send the
next bit.

My guess is, this is all happening so fast that it all looks like one string
on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl... Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it
works correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:uN*************@tk2msftngp13.phx.gbl...

Hi,

Simple, you have to either send a terminator or before sending the string
send the # of bytes you will send.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:uU**************@TK2MSFTNGP12.phx.gbl...

Hi , i have problem about sending data over socket . It waits for
another socket.send

// str = Encoding.ASCII.GetBytes("hello");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); // return
"hello to you "

// str =Encoding.ASCII.GetBytes( "how_are_you ");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None);// return
"fine"

it sends like this "hellohow_are_you" , but it is wrong , how can i
solve it ?

thanks in advance

[Hasan O]

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...

Is that because you are stepping through line by line?

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time to
actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes on
to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...

Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it
works correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:uN*************@tk2msftngp13.phx.gbl...

Hi,

Simple, you have to either send a terminator or before sending the
string send the # of bytes you will send.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:uU**************@TK2MSFTNGP12.phx.gbl...
Hi , i have problem about sending data over socket . It waits for
another socket.send

// str = Encoding.ASCII.GetBytes("hello");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
return "hello to you "

// str =Encoding.ASCII.GetBytes( "how_are_you ");

socket.Send(str,0,str.Length,SocketFlags.None);

socket.Receive(strincome,0,socket.Available,Socket Flags.None);// return
"fine"

it sends like this "hellohow_are_you" , but it is wrong , how can i
solve it ?

thanks in advance

[Hasan O]

by the way ,
//socket.SetSocketOption(SocketOptionLevel.Socket,So cketOptionName.ReceiveTimeout,5000);

//socket.SetSocketOption(SocketOptionLevel.Socket,So cketOptionName.SendTimeout,5000);

these dont work

[Adam Clauss]

"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

You do what Ignacio recommended :)
You send the length first.

Length should be fixed-length, so you know exactly how many bytes you are
waiting for. And then from the length you get, you can do another
Receive().

--
Adam Clauss

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

The one I told you the first time, use either a terminator or send before
the number of bytes
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...

Is that because you are stepping through line by line?

> socket.Send(str,0,str.Length,SocketFlags.None);
>
> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
> return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time to
actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes on
to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...

Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it
works correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:uN*************@tk2msftngp13.phx.gbl...
Hi,

Simple, you have to either send a terminator or before sending the
string send the # of bytes you will send.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:uU**************@TK2MSFTNGP12.phx.gbl...
> Hi , i have problem about sending data over socket . It waits for
> another socket.send
>
> // str = Encoding.ASCII.GetBytes("hello");
>
> socket.Send(str,0,str.Length,SocketFlags.None);
>
> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
> return "hello to you "
>
> // str =Encoding.ASCII.GetBytes( "how_are_you ");
>
> socket.Send(str,0,str.Length,SocketFlags.None);
>
> socket.Receive(strincome,0,socket.Available,Socket Flags.None);//
> return "fine"
>
>
>
> it sends like this "hellohow_are_you" , but it is wrong , how can i
> solve it ?
>
>
>
> thanks in advance
>
>

[Hasan O]

Hi ,
the other side only accepts strings without a terminator character . lets
say it waits for "hello" . Also , it doesnt accept how many bytes it gonna
take. I simply send "hello" and it gives me "hello back". but when i use
sequential send , my program merges all send commands.

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:u7**************@TK2MSFTNGP11.phx.gbl...

Hi,

The one I told you the first time, use either a terminator or send before
the number of bytes
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...

Is that because you are stepping through line by line?

>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>> return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time
to actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes
on to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...
Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it
works correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:uN*************@tk2msftngp13.phx.gbl...
> Hi,
>
> Simple, you have to either send a terminator or before sending the
> string send the # of bytes you will send.
>
> cheers,
>
> --
> Ignacio Machin,
> ignacio.machin AT dot.state.fl.us
> Florida Department Of Transportation
>
>
> "Hasan O" <ho********@gmail.com> wrote in message
> news:uU**************@TK2MSFTNGP12.phx.gbl...
>> Hi , i have problem about sending data over socket . It waits for
>> another socket.send
>>
>> // str = Encoding.ASCII.GetBytes("hello");
>>
>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>> return "hello to you "
>>
>> // str =Encoding.ASCII.GetBytes( "how_are_you ");
>>
>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None);//
>> return "fine"
>>
>>
>>
>> it sends like this "hellohow_are_you" , but it is wrong , how can i
>> solve it ?
>>
>>
>>
>> thanks in advance
>>
>>
>
>

[Hasan O]

Hi ,
the other side only accepts strings without a terminator character . lets
say it waits for "hello" . Also , it doesnt accept how many bytes it gonna
take. I simply send "hello" and it gives me "hello back". but when i use
sequential send , my program merges all send commands.

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:u7**************@TK2MSFTNGP11.phx.gbl...

Hi,

The one I told you the first time, use either a terminator or send before
the number of bytes
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...

Is that because you are stepping through line by line?

>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>> return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time
to actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes
on to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...
Hi Ignacio ,
there is no such thing . when i run it command by command ( debug ) it
works correctly .
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:uN*************@tk2msftngp13.phx.gbl...
> Hi,
>
> Simple, you have to either send a terminator or before sending the
> string send the # of bytes you will send.
>
> cheers,
>
> --
> Ignacio Machin,
> ignacio.machin AT dot.state.fl.us
> Florida Department Of Transportation
>
>
> "Hasan O" <ho********@gmail.com> wrote in message
> news:uU**************@TK2MSFTNGP12.phx.gbl...
>> Hi , i have problem about sending data over socket . It waits for
>> another socket.send
>>
>> // str = Encoding.ASCII.GetBytes("hello");
>>
>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>> return "hello to you "
>>
>> // str =Encoding.ASCII.GetBytes( "how_are_you ");
>>
>> socket.Send(str,0,str.Length,SocketFlags.None);
>>
>> socket.Receive(strincome,0,socket.Available,Socket Flags.None);//
>> return "fine"
>>
>>
>>
>> it sends like this "hellohow_are_you" , but it is wrong , how can i
>> solve it ?
>>
>>
>>
>> thanks in advance
>>
>>
>
>

[Adam Clauss]

So do you explicity know how many bytes you receive as a response then? If
that is predefined, then use that instead of Available.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:uT**************@TK2MSFTNGP12.phx.gbl...

Hi ,
the other side only accepts strings without a terminator character . lets
say it waits for "hello" . Also , it doesnt accept how many bytes it gonna
take. I simply send "hello" and it gives me "hello back". but when i use
sequential send , my program merges all send commands.

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:u7**************@TK2MSFTNGP11.phx.gbl...

Hi,

The one I told you the first time, use either a terminator or send before
the number of bytes
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...
Is that because you are stepping through line by line?

>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>>> return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time
to actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes
on to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...
> Hi Ignacio ,
> there is no such thing . when i run it command by command ( debug ) it
> works correctly .
>
>
> "Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
> wrote in message news:uN*************@tk2msftngp13.phx.gbl...
>> Hi,
>>
>> Simple, you have to either send a terminator or before sending the
>> string send the # of bytes you will send.
>>
>> cheers,
>>
>> --
>> Ignacio Machin,
>> ignacio.machin AT dot.state.fl.us
>> Florida Department Of Transportation
>>
>>
>> "Hasan O" <ho********@gmail.com> wrote in message
>> news:uU**************@TK2MSFTNGP12.phx.gbl...
>>> Hi , i have problem about sending data over socket . It waits for
>>> another socket.send
>>>
>>> // str = Encoding.ASCII.GetBytes("hello");
>>>
>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>>> return "hello to you "
>>>
>>> // str =Encoding.ASCII.GetBytes( "how_are_you ");
>>>
>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None);//
>>> return "fine"
>>>
>>>
>>>
>>> it sends like this "hellohow_are_you" , but it is wrong , how can i
>>> solve it ?
>>>
>>>
>>>
>>> thanks in advance
>>>
>>>
>>
>>
>
>

[Adam Clauss]

So do you explicity know how many bytes you receive as a response then? If
that is predefined, then use that instead of Available.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:uT**************@TK2MSFTNGP12.phx.gbl...

Hi ,
the other side only accepts strings without a terminator character . lets
say it waits for "hello" . Also , it doesnt accept how many bytes it gonna
take. I simply send "hello" and it gives me "hello back". but when i use
sequential send , my program merges all send commands.

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:u7**************@TK2MSFTNGP11.phx.gbl...

Hi,

The one I told you the first time, use either a terminator or send before
the number of bytes
cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Hasan O" <ho********@gmail.com> wrote in message
news:Os***************@TK2MSFTNGP11.phx.gbl...

yes , you are right . So what would be the solution ?

"Adam Clauss" <ca*****@tamu.edu> wrote in message
news:11*************@corp.supernews.com...
Is that because you are stepping through line by line?

>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>>> return "hello to you "

That use of socket.Available is the problem. If execution goes too
quickly, the receive will get called before the remote client has time
to actually send anything. Thus socket.Available = 0. And the receive
immediately returns without actually receiving anythign. It then goes
on to send the next bit.

My guess is, this is all happening so fast that it all looks like one
string on the remote end.

--
Adam Clauss

"Hasan O" <ho********@gmail.com> wrote in message
news:eT**************@TK2MSFTNGP11.phx.gbl...
> Hi Ignacio ,
> there is no such thing . when i run it command by command ( debug ) it
> works correctly .
>
>
> "Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
> wrote in message news:uN*************@tk2msftngp13.phx.gbl...
>> Hi,
>>
>> Simple, you have to either send a terminator or before sending the
>> string send the # of bytes you will send.
>>
>> cheers,
>>
>> --
>> Ignacio Machin,
>> ignacio.machin AT dot.state.fl.us
>> Florida Department Of Transportation
>>
>>
>> "Hasan O" <ho********@gmail.com> wrote in message
>> news:uU**************@TK2MSFTNGP12.phx.gbl...
>>> Hi , i have problem about sending data over socket . It waits for
>>> another socket.send
>>>
>>> // str = Encoding.ASCII.GetBytes("hello");
>>>
>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None); //
>>> return "hello to you "
>>>
>>> // str =Encoding.ASCII.GetBytes( "how_are_you ");
>>>
>>> socket.Send(str,0,str.Length,SocketFlags.None);
>>>
>>> socket.Receive(strincome,0,socket.Available,Socket Flags.None);//
>>> return "fine"
>>>
>>>
>>>
>>> it sends like this "hellohow_are_you" , but it is wrong , how can i
>>> solve it ?
>>>
>>>
>>>
>>> thanks in advance
>>>
>>>
>>
>>
>
>