Hi Antoine,
On Sat, Mar 28, 2009 at 7:59 PM, Antoine Latter
Folks,
I'm putting together an FFI layer to a library which uses writev for its IO, and so expects an array of iovec structs as an argument to one of its calls. for more information, check out "man writev"[1].
Since I'm already using Data.Binary, the writev call almost sounds like a perfect match for lazy bytestrings, so I thought I'd put up what I have for comments. I'm using c2hs[2]. The recursive nesting of 'withForeignPtr' put me off at first, but I thought I'd at least give it a shot. I haven't put this into practice yet, so it could be buggy. I'm more looking for comments on the approach.
network-bytestring [1] includes a FFI wrapper for iovecs that might be useful to look at. 1. http://github.com/tibbe/network-bytestring/tree/master Cheers, Johan