Re: Sending Data over Shared Memories (MFC)

Hi,

I want to develop a program, that transmits several classes between two
processes. It should be built after the guidelines of the
iso/osi-reference model and work with a shared memory. At the moment I
copy all the data into a buffer, add the specific overhead and send
them to the memory. But if the data contains any strings, it adds only
the pointer and not the string itsself. How can I realize, that the
program copies the string and not the pointer into "pBuffer"? I have
already looked at serialization and streams, but it still didn't work.

Anyone knows, how to handle this problem?

The structure for the data transport looks like this:

struct SDataModule // layer 7 module
{
long commandCount; // number of elements in the buffer
char pBuffer[MAX_COUNT_BYTES]; // storage buffer
};

struct STransportModule // layer 4 module
{
long seqNumber; // a sequence number to mark each block
SDataModule data; // the data to transport
};

struct SNetworkModule // layer 3 module
{
char source[16]; // the ip from the user computer
STransportModule transport; // the data to transport
};

struct SMemoryModule // layer 1 module
{
BOOL full; // indication that the shared memory is full
SNetworkModule network; // the data to transport
};