On Mon, Apr 25, 2005 at 12:10:08PM +0200, Marc Olzheim wrote: > Are there plans on implementing preadv() and pwritev() ? I kind of miss > the functionality and I saw NetBSD had it already...
By the looks of pwrite() and writev() it could probably be implemented fairly easily; it would largely be a matter of rototiling pwrite() to accept an array of iovecs, as writev() currently does, as pwrite() already knows how to pass a single uio/iovec on the stack with the desired start offset. Looking at the man page for pwritev() it only accepts a start offset, rather than an individual offset for each scatter/gather element. I don't do enough thread-based programming at the moment to make this worth my while, though, but I'm happy to look at a patch. BMS
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