Perl 6 - the future is here, just unevenly distributed

IRC log for #linuxvillage, 2015-03-11

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All times shown according to UTC.

Time Nick Message
01:58 melodie pdurbin here after is the explanation from Andrey Utkin about the "posix" and "ata" options coming before any job to be done on a hard drive, using WHDD:
01:59 melodie (this will look a bit like a flood but I want it to stay in the logs):
01:59 melodie > it. I have thought about it: how would I explain the options "ata" or "posix" for
01:59 melodie > instance. I'll just make them hyperlinks to the relevant pages in Wikipedia or so. :)
01:59 melodie "ata" vs "posix" here means the way WHDD application makes requests to
01:59 melodie Linux kernel.
01:59 melodie "POSIX" utilises usual "read"/"write" syscalls, just like in a lot of
01:59 melodie other apps, just like for any other kind of file. These syscalls are
01:59 melodie defined in POSIX standard, that's why the mode is "posix".
01:59 melodie "ATA" mode uses special SG_IO ioctl, sending filled "ATA taskfile"
01:59 melodie request structure, specifying ATA command to execute, block offset on
01:59 melodie disk, data block length etc. SG_IO takes this ATA taskfile not in a
01:59 melodie direct manner, but in the form of "SCSI command". It is later
01:59 melodie transformed to "ATA taskfile" inside of kernel. But there's currently
01:59 melodie no way to directly pass ATA taskfile from userspace, SG_IO is the only
01:59 melodie possibility.
01:59 melodie So that's what is "ATA" mode here, in a word :)
01:59 melodie on pastebin, shorter with the link, but will not stay forever I guess: http://pastebin.fr/38924
02:01 melodie in the coming times, this will request some more detailed explanations
02:01 melodie good night!
02:47 ilbot3 joined #linuxvillage
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08:40 pti-jean_ joined #linuxvillage
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20:34 melodie joined #linuxvillage
20:34 melodie bonsoir
20:34 melodie hello!

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