I saw the original conversation of this thread and saw that this is what I
was trying to accomplish. I have pieced together a callback using the
example code provided by kan-4 and Wei Dai.
I'm having a problem, I need to intercept and further process the data
before returning. While stepping through code, the chunks are being seen by
the loop but I don't have the know-how to intercept the source or pump. My
question is this:
How do I access the data while stepping through the loop ?
Thanks
int InputReadFromStreamCallback(void *_ctx, std::string &buffer, int len)
{
InputReadCallbackContext *ctx = (InputReadCallbackContext *)_ctx;
try
{
while(ctx->pump->MaxRetrievable() < len) // don't need separate
source
pointer
{
if(ctx->pump->Pump(len / 5 + 1) == 0)
{
ctx->pump->PumpAll(); // causes MessageEnd() to
be called on compressor
/ decompressor
break;
}
ctx->pump->Flush(false); // flush output buffer
}
return ctx->source->Get((byte *)buffer.data(), (size_t) len);//
}
catch(CryptoPP::Exception &e)
{
std::string exep = e.GetWhat();
return -1;
}
}
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