D4R issues

I didn’t read the size of the buffer, but the amount of data I was reading increased.
It is the socket buffer I’m changing:

int buffer_size = 131072
setsockopt( download_struct→socket, SOL_SOCKET, SO_RCVBUF, &buffer_size, (int)sizeof(buffer_size)

I’m trying to do some re-organisation of the main loop code tonight, which is proving more problematic than I first thought (it’s a tangled web)
But once I’ve done with that I’ll put some debugs in to get out the size after.
But it was the only thing that made any sense.
I can’t read more data than is in the buffer though can I?

I wonder if the effect you are seeing is caused by setsockopt triggering callbacks. It would be interesting to know if you get the speed improvement with setsockopt replaced with:

_swix(OS_ReadMonotonicTime, 0);

I can’t read more data than is in the buffer though can I?

MSG_WAITALL flag in socket recv will wait for the full request or timeout set by SO_RCVTIMEO or error but it will block while reading. You can’t read more than the buffer without blocking.

I’ve managed, after much pain, to reorganise the main processing loop. It was far too long and complex, so now it’s split into procedures.
It’s still a long way off where it needs to be, but at least the structure is there now.
I’ve also reduced the amount of updates to the icons, so it just updates at most every 1/2 second.
I was hoping this would boost the speed, however it doesn’t seem to have.
Anyway once I get access to the PC, I’ll upload version 0.09 onto my site.
Version 0.10 will focus on removing the “nasties” that occur when something happens out of the ordinary.
i.e. make sure all sockets etc are closed cleanly and not left open through laziness and the if fail then exit() things are removed and dealt with properly.

[Update] Suprisingly I just managed to do it using otter-browser

Version 0.10 has been done, so my next step is the 0.2x series – multiple downloads. This should be much more “fun” ;-)
Again for more details on progress and aims please see the download page .
Although technically d4r has been scrapped and it’s just QFA now.