multithread c# socket server

Z

zhebincong

Hello:

I write a multithread c# socket server,it is a winform application,there is
a richtextbox control and button,when the button is click,the server begin
to listen the socket port,waiting for a incoming connection,the relative
code snipprt as following::



private IPAddress myIP=IPAddress.Parse("127.0.0.1");

private IPEndPoint myServer;

private Socket socket;

private Socket accSocket;

private System.Windows.Forms.Button button2;

private bool check;



private void button1_Click(object sender, System.EventArgs e)

{

check=true;

try

{

Thread thread =new Thread(new ThreadStart(accp));

thread.Start();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}



private void accp()

{

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Bind(myServer);

socket.Listen(50);



while(true)

{

try

{

accSocket=socket.Accept();

if(accSocket.Connected)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

}

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}

}



private void round()

{



Byte[] rec=new Byte[1024];

NetworkStream acceptStream=new NetworkStream(accSocket);



int i=0;

while((i=acceptStream.Read(rec,0,rec.Length))!=0)

{

string
recMessage=System.Text.Encoding.Default.GetString(rec);

rec=new Byte[1024];

this.richTextBox1.AppendText(recMessage);

}



}

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­









In order to test the server,I write a multithread client too,there is only
one button in the form,when it is clicked,four threads is generated to
connect the server simultaneously,each thread write one line to the server
socket.code as:







private IPAddress myIP;

private IPEndPoint myServer;

private Socket socket;



private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

}

}



private void round()

{

try

{

myIP=IPAddress.Parse("127.0.0.1");

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Connect(myServer);

NetworkStream netStream=new NetworkStream(socket);



Byte[] byteMessage=new Byte[640];

string sendMessage="´ó¼ÒºÃ£¡£¡£¡£¡!\r\n";


byteMessage=System.Text.Encoding.Default.GetBytes(sendMessage.ToCharArray())
;

// socket.Send(byteMessage,byteMessage.Length,0);

netStream.Write(byteMessage,0,byteMessage.Length);

netStream.Flush();

netStream.Close();

socket.Close();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}



}







As you can see,when I click the button in the client side,I should see four
lines is printed in the server side.but in fact,I can¡¯t,I can only see one
line,sometimes two or three lines,by my tracing,I found they always come
from the last several threads.if I modify the button click event in the
client as following(add sleep between the threads),it works well,that is I
can see four lines every time in the server:





private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

Thread.Sleep(100);

}

}



If I modify the timeout param of the sleep method to lower and lower, the
mentioned problem occur again.i also write a java multithread server, it
works well to the simuteneous thread connection.

Why c# socket server can¡¯t handle the simultaneous access?is it a bug?by
comparing the java server and c# server,I also found that the java server is
faster then c# server.



Any instruction?Thank you.
 
T

Tamir Khason

You do not have to repost you message over and over. As far as I see 6
messages from now you recieved an answer from community member, Henrik Dahl,
to your question. So why repost? Use the current thread to continue
conversation if needed...

Sorry for this,

--
Tamir Khason
You want dot.NET? Just ask:
"Please, www.dotnet.us "


zhebincong said:
Hello:

I write a multithread c# socket server,it is a winform application,there is
a richtextbox control and button,when the button is click,the server begin
to listen the socket port,waiting for a incoming connection,the relative
code snipprt as following::



private IPAddress myIP=IPAddress.Parse("127.0.0.1");

private IPEndPoint myServer;

private Socket socket;

private Socket accSocket;

private System.Windows.Forms.Button button2;

private bool check;



private void button1_Click(object sender, System.EventArgs e)

{

check=true;

try

{

Thread thread =new Thread(new ThreadStart(accp));

thread.Start();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}



private void accp()

{

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Bind(myServer);

socket.Listen(50);



while(true)

{

try

{

accSocket=socket.Accept();

if(accSocket.Connected)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

}

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}

}



private void round()

{



Byte[] rec=new Byte[1024];

NetworkStream acceptStream=new NetworkStream(accSocket);



int i=0;

while((i=acceptStream.Read(rec,0,rec.Length))!=0)

{

string
recMessage=System.Text.Encoding.Default.GetString(rec);

rec=new Byte[1024];

this.richTextBox1.AppendText(recMessage);

}



}

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­









In order to test the server,I write a multithread client too,there is only
one button in the form,when it is clicked,four threads is generated to
connect the server simultaneously,each thread write one line to the server
socket.code as:







private IPAddress myIP;

private IPEndPoint myServer;

private Socket socket;



private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

}

}



private void round()

{

try

{

myIP=IPAddress.Parse("127.0.0.1");

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Connect(myServer);

NetworkStream netStream=new NetworkStream(socket);



Byte[] byteMessage=new Byte[640];

string sendMessage="´ó¼ÒºÃ£¡£¡£¡£¡!\r\n";


byteMessage=System.Text.Encoding.Default.GetBytes(sendMessage.ToCharArray())
;

// socket.Send(byteMessage,byteMessage.Length,0);

netStream.Write(byteMessage,0,byteMessage.Length);

netStream.Flush();

netStream.Close();

socket.Close();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}



}







As you can see,when I click the button in the client side,I should see four
lines is printed in the server side.but in fact,I can¡¯t,I can only see one
line,sometimes two or three lines,by my tracing,I found they always come
from the last several threads.if I modify the button click event in the
client as following(add sleep between the threads),it works well,that is I
can see four lines every time in the server:





private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

Thread.Sleep(100);

}

}



If I modify the timeout param of the sleep method to lower and lower, the
mentioned problem occur again.i also write a java multithread server, it
works well to the simuteneous thread connection.

Why c# socket server can¡¯t handle the simultaneous access?is it a bug?by
comparing the java server and c# server,I also found that the java server is
faster then c# server.



Any instruction?Thank you.
Click to expand...
 
G

Guest

sorry,the other questions is posted from other forums,maybe microsoft community and several others ,and i only post one time in every forum.i don't know why they come here,maybe you are the same forum.











Tamir Khason said:
You do not have to repost you message over and over. As far as I see 6
messages from now you recieved an answer from community member, Henrik Dahl,
to your question. So why repost? Use the current thread to continue
conversation if needed...

Sorry for this,

--
Tamir Khason
You want dot.NET? Just ask:
"Please, www.dotnet.us "


zhebincong said:
Hello:

I write a multithread c# socket server,it is a winform application,there is
a richtextbox control and button,when the button is click,the server begin
to listen the socket port,waiting for a incoming connection,the relative
code snipprt as following::



private IPAddress myIP=IPAddress.Parse("127.0.0.1");

private IPEndPoint myServer;

private Socket socket;

private Socket accSocket;

private System.Windows.Forms.Button button2;

private bool check;



private void button1_Click(object sender, System.EventArgs e)

{

check=true;

try

{

Thread thread =new Thread(new ThreadStart(accp));

thread.Start();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}



private void accp()

{

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Bind(myServer);

socket.Listen(50);



while(true)

{

try

{

accSocket=socket.Accept();

if(accSocket.Connected)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

}

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}

}

}



private void round()

{



Byte[] rec=new Byte[1024];

NetworkStream acceptStream=new NetworkStream(accSocket);



int i=0;

while((i=acceptStream.Read(rec,0,rec.Length))!=0)

{

string
recMessage=System.Text.Encoding.Default.GetString(rec);

rec=new Byte[1024];

this.richTextBox1.AppendText(recMessage);

}



}

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­.

¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­¡­









In order to test the server,I write a multithread client too,there is only
one button in the form,when it is clicked,four threads is generated to
connect the server simultaneously,each thread write one line to the server
socket.code as:







private IPAddress myIP;

private IPEndPoint myServer;

private Socket socket;



private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

}

}



private void round()

{

try

{

myIP=IPAddress.Parse("127.0.0.1");

myServer=new IPEndPoint(myIP,Int32.Parse("20000"));

socket=new
Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

socket.Connect(myServer);

NetworkStream netStream=new NetworkStream(socket);



Byte[] byteMessage=new Byte[640];

string sendMessage="´ó¼ÒºÃ£¡£¡£¡£¡!\r\n";


byteMessage=System.Text.Encoding.Default.GetBytes(sendMessage.ToCharArray())
;

// socket.Send(byteMessage,byteMessage.Length,0);

netStream.Write(byteMessage,0,byteMessage.Length);

netStream.Flush();

netStream.Close();

socket.Close();

}

catch(Exception ee)

{

MessageBox.Show(ee.Message);

}



}







As you can see,when I click the button in the client side,I should see four
lines is printed in the server side.but in fact,I can¡¯t,I can only see one
line,sometimes two or three lines,by my tracing,I found they always come
from the last several threads.if I modify the button click event in the
client as following(add sleep between the threads),it works well,that is I
can see four lines every time in the server:





private void button1_Click(object sender, System.EventArgs e)

{

for(int i=0;i<4;i++)

{

Thread thread=new Thread(new ThreadStart(round));

thread.Start();

thread.Join();

Thread.Sleep(100);

}

}



If I modify the timeout param of the sleep method to lower and lower, the
mentioned problem occur again.i also write a java multithread server, it
works well to the simuteneous thread connection.

Why c# socket server can¡¯t handle the simultaneous access?is it a bug?by
comparing the java server and c# server,I also found that the java server is
faster then c# server.



Any instruction?Thank you.
Click to expand...
Click to expand...
 

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