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Re: [Qemu-devel] migration: adding migration to/from a file (v2)
From: |
M. Warner Losh |
Subject: |
Re: [Qemu-devel] migration: adding migration to/from a file (v2) |
Date: |
Thu, 19 Feb 2009 16:36:01 -0700 (MST) |
In message: <address@hidden>
Jamie Lokier <address@hidden> writes:
: Anthony Liguori wrote:
: > >Sure looks like a bug.
: > I wish! It's Unix suckiness.
:
: Windows is the same.
: It's a more of a conceptual problem than it looks, not merely an API bug.
:
: It comes down to "what would 'readable' and 'writable' mean on a file?".
"Would a read or write operation block?" is a better way to look at
the interface that select() or poll() provides. For a regular file,
the answer is "no" since the writes are so fast and often
asynchronous...
Warner
- [Qemu-devel] migration: adding migration to/from a file (v2), Uri Lublin, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Anthony Liguori, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Uri Lublin, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Anthony Liguori, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Uri Lublin, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Anthony Liguori, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Jamie Lokier, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2),
M. Warner Losh <=
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Anthony Liguori, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), M. Warner Losh, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Uri Lublin, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Jamie Lokier, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Anthony Liguori, 2009/02/19
- Re: [Qemu-devel] migration: adding migration to/from a file (v2), Jamie Lokier, 2009/02/19