http://msdn2.microsoft.com/en-us/lib...2a(VS.80).aspx
I was looking at above link and I just don't see the advantage of this. The
main thread is just stopping and waiting for each of the
connects/sends/receives to complete anyway so it seems to me using the
synchronous methods would be much simpler and equivalent as far as
efficiency/performance in this example? What am I missing here? Is it just
that this example is simply to show the structure of putting the begin/end
asynch calls together and not demonstrating a practical use?
any input on this would be greatly appreciated. A good practical example of
asynchronous tcp client/server would be gold to me right now. 6  1970 
HI,
Maybe in this case it like that. It's an example after all.
The point is that with an async you can do other stuff (or at the least no
block the UI) while you transfer the data.
"David" <no****@nospam. comwrote in message
news:eH******** ******@TK2MSFTN GP04.phx.gbl...
http://msdn2.microsoft.com/en-us/lib...2a(VS.80).aspx
I was looking at above link and I just don't see the advantage of this.
The main thread is just stopping and waiting for each of the
connects/sends/receives to complete anyway so it seems to me using the
synchronous methods would be much simpler and equivalent as far as
efficiency/performance in this example? What am I missing here? Is it just
that this example is simply to show the structure of putting the begin/end
asynch calls together and not demonstrating a practical use?
any input on this would be greatly appreciated. A good practical example
of asynchronous tcp client/server would be gold to me right now.
<"Ignacio Machin \( .NET/ C# MVP \)" <machin TA laceupsolutions .com>>
wrote:
Maybe in this case it like that. It's an example after all.
The point is that with an async you can do other stuff (or at the least no
block the UI) while you transfer the data.
It depends on the situation. In the case of a server, I'd say the main
point of async IO is to be able to handle thousands of clients without
the context switches involved in running thousands of threads.
Chris Mullins is the person to ask though :)
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
"Jon Skeet [C# MVP]" <sk***@pobox.co m???
??????:MP****** *************** ***@msnews.micr osoft.com...
<"Ignacio Machin \( .NET/ C# MVP \)" <machin TA laceupsolutions .com>>
wrote:
>Maybe in this case it like that. It's an example after all.
The point is that with an async you can do other stuff (or at the least
no
block the UI) while you transfer the data.
It depends on the situation. In the case of a server, I'd say the main
point of async IO is to be able to handle thousands of clients without
the context switches involved in running thousands of threads.
Chris Mullins is the person to ask though :)
The main thread is just a harness for the sample routines. It is not a real
user. One should use asynch I/O when one needs it. For example, when you
want your GUI to be responsive even when the other party fails.
JR
--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too
thanks all...
"David" <no****@nospam. comwrote in message
news:eH******** ******@TK2MSFTN GP04.phx.gbl...
http://msdn2.microsoft.com/en-us/lib...2a(VS.80).aspx
I was looking at above link and I just don't see the advantage of this.
The main thread is just stopping and waiting for each of the
connects/sends/receives to complete anyway so it seems to me using the
synchronous methods would be much simpler and equivalent as far as
efficiency/performance in this example? What am I missing here? Is it just
that this example is simply to show the structure of putting the begin/end
asynch calls together and not demonstrating a practical use?
any input on this would be greatly appreciated. A good practical example
of asynchronous tcp client/server would be gold to me right now.
The sample is showing you how to do basic async socket programming, but it
is (as you point out) really defeating the purprose by doing so much
waiting.
Async sockets are good for handling lots of sockets very cheaply, and for
helping you not have to create and manage your own threads.
There are a number of better examples that Microsoft has put out. Their
server sample of that same program is a bit better: This creates a server
socket, that just echo's things back to the sender. Pretty straight forward. http://msdn2.microsoft.com/en-us/library/fx6588te.aspx
There are a ton of examples on CodeProject that use async sockets: http://www.google.com/search?hl=en&q...om&btnG=Search
--
Chris Mullins, MCSD.NET, MCPD:Enterprise , Microsoft C# MVP http://www.coversant.com/blogs/cmullins
"David" <no****@nospam. comwrote in message
news:eH******** ******@TK2MSFTN GP04.phx.gbl...
http://msdn2.microsoft.com/en-us/lib...2a(VS.80).aspx
I was looking at above link and I just don't see the advantage of this.
The main thread is just stopping and waiting for each of the
connects/sends/receives to complete anyway so it seems to me using the
synchronous methods would be much simpler and equivalent as far as
efficiency/performance in this example? What am I missing here? Is it just
that this example is simply to show the structure of putting the begin/end
asynch calls together and not demonstrating a practical use?
any input on this would be greatly appreciated. A good practical example
of asynchronous tcp client/server would be gold to me right now.
thanks Chris. Its appreciated.
"Chris Mullins [MVP]" <cm******@yahoo .comwrote in message
news:eC******** ******@TK2MSFTN GP04.phx.gbl...
The sample is showing you how to do basic async socket programming, but it
is (as you point out) really defeating the purprose by doing so much
waiting.
Async sockets are good for handling lots of sockets very cheaply, and for
helping you not have to create and manage your own threads.
There are a number of better examples that Microsoft has put out. Their
server sample of that same program is a bit better: This creates a server
socket, that just echo's things back to the sender. Pretty straight
forward.
http://msdn2.microsoft.com/en-us/library/fx6588te.aspx
There are a ton of examples on CodeProject that use async sockets:
http://www.google.com/search?hl=en&q...om&btnG=Search
--
Chris Mullins, MCSD.NET, MCPD:Enterprise , Microsoft C# MVP
http://www.coversant.com/blogs/cmullins
"David" <no****@nospam. comwrote in message
news:eH******** ******@TK2MSFTN GP04.phx.gbl...
>http://msdn2.microsoft.com/en-us/lib...2a(VS.80).aspx
I was looking at above link and I just don't see the advantage of this.
The main thread is just stopping and waiting for each of the
connects/sends/receives to complete anyway so it seems to me using the
synchronous methods would be much simpler and equivalent as far as
efficiency/performance in this example? What am I missing here? Is it
just that this example is simply to show the structure of putting the
begin/end asynch calls together and not demonstrating a practical use?
any input on this would be greatly appreciated. A good practical example
of asynchronous tcp client/server would be gold to me right now.
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