[Libtorrent-devel] full allocation

[=?utf-8?q?=C5=81ukasz_Fibinger?=]

Hi guys,

I've been fiddling a bit with rtorrent, trying to make full file allocation on 
XFS work (it's a bugger when downloading several files makes "xfs_db -c frag" 
show 99% fragmentation and slows down your FS cooonsiderably, while 
allocating files takes just a few seconds on XFS). Alas, although I do have a 
basic programming/C/C++ knowledge, I haven't really gotten into the arcana of 
it. I've noticed that the support for allocation (posix_fallocate and XFS 
specific) is already there (data/socket_file.cc). I've made rtorrent allocate 
files nicely and start downloading nicely, but it complains about "bad 
data/chunks" upon completion (at least on bigger files?). I think I should 
fiddle with resize(), which shouldn't be needed anymore, and perhaps change 
something in regards to hashing, but well, I'm quite lost here. Additionally, 
checking whether my changes worked is quite problematic, as I have to 
download something bigger to confirm that.

Any help would be appreciated. I just hate how proper allocation is 
disregarded in the great majority of clients.

Cheers,

Luke