Swing Buffers

[sweep123]

I have a task that uses a buffer to send/recv data via TCP/IP sockets. But I think that the buffer is not read fast enough before the next send/recv. Problem with the delay between next send/recv.

How would swing buffers help? As that was suggested as a solution.

 

[palbano]

>> I have a task that uses a buffer to send/recv data via >> TCP/IP sockets

You need to clarify what that means. I use buffers all day and twice on Sunday to send/recv data via TCP/IP sockets without any problems.


-pete

 

[sweep123]

The problem I have is that after a few seconds (around 5 seconds) I get the Winsock error 10014 Bad Address.

However when I look at the pointer that the TCP send is using it is NULL.

The pointer points to a structure that I wish to transmit via non-blocking sockets. Some of the structure contains static data and some dynamic.

However if I reset the pointer:-
prt_MyData = &MyData; // do this just before the send

then the dynamic data is OK (just loaded in), but the static parts of the data are now undefined. i.e. I have lost the initialisation I did on the static sections.

Now using cyclic buffers (10 of them).

I dont understand what TCP/IP is doing with the buffer I use for writing.

If I do this:-

MyStruct MyData;
prt_MyData *MyStruct;

Set up the static bits of MyData ...

prt_MyData = & MyData;

do other processing (get TCP message requesting the send data)

send the data ... // This is where I get the 10014 error.

However if I do the following:-

MyStruct MyData;
prt_MyData *MyStruct;

Set up the static bits of MyData ...

do other processing (get TCP message requesting the send data)

prt_MyData = & MyData; // !!! static data is now undefined
send the data ... // This is where I get the 10014 error.

Help!