[haiku-bugs] Re: [Haiku] #6285: Implement posix_fallocate()
- From: "axeld" <trac@xxxxxxxxxxxx>
- Date: Thu, 14 Oct 2010 21:18:24 -0000
#6285: Implement posix_fallocate()
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Reporter: korli | Owner: nobody
Type: enhancement | Status: new
Priority: low | Milestone: R1
Component: System/POSIX | Version: R1/alpha2
Resolution: | Keywords:
Blocked By: | Has a Patch: 0
Platform: All | Blocking:
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Comment (by axeld):
Replying to [comment:6 bonefish]:
> Then the function wouldn't make much sense. The whole point is that
after a successful call of the function, writes cannot fail due to lack of
disk space. If the file system can't ensure that, it has to fail,
returning a suitable error code (`ENOSYS` or `ENOTSUP`).
It's filed under realtime extensions, so I guess it's purpose is not only
to ensure there is enough space left (you can always at least check if
there is enough space, and you could always just enlarge the file before
writing it if you actually know its size beforehand), but also to make
sure there is no time wasted making space for it (to be able to guarantee
a certain drive throughput).
--
Ticket URL: <http://dev.haiku-os.org/ticket/6285#comment:7>
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