I have read a document which tells me the following 4 things are done by the RAM embedded on disk driver controller. But I don't know what's difference between buffer and cache. Thanks!
RAM on disk drive controllers
1 firmware
2 speed matching buffer
3 prefetching buffer
4 cache (1 Reply)
Happy New Year!
There are currently four UNIX.COM achievement awards up for grabs, as the say. Here they are, in no particular order:
The Order of the Raven
The Order of the Hippo
The Order of the Spider
The Order of the Dragon
Don't ask me what they mean, or who who will get those... (0 Replies)
Dear All,
Here is the current status of the badging system:
The Beta 1 phase of the new badging system is close to completion.
42 prototype badges have been "allocated"
6 prototype badge slots are held in reserve
The "alert you have new badges" prototype is running and is currently... (4 Replies)
Here is the current array of the short description of badges for the new prototype badging system (Beta 1) with 42 icons allocated (prototype logic written) and 6 reserved (for future use);
<?php
$badges_desc = array(
"fauser" => "Total Post Count",
"faaward" => "First Post",
... (6 Replies)
Dear All,
We have a lot of amazing moderators and other very talented unix.com members who provide tireless top quality free technical support assistance to others. As a service to those long term unix.com members, I am making a new Patreon BBCODE badge available which can be posted in forum... (8 Replies)
Another major upgrade on the new UserCP today. I have created the "My Badges" page in the new control panel, and it's looking very cool :)
If you have visited the new UserCP recently, you will more-than-likely need to close your browser (completely) and then restart it to clear out the old... (2 Replies)
Discussion started by: Neo
2 Replies
LEARN ABOUT DEBIAN
io::async::signal
IO::Async::Signal(3pm) User Contributed Perl Documentation IO::Async::Signal(3pm)NAME
"IO::Async::Signal" - event callback on receipt of a POSIX signal
SYNOPSIS
use IO::Async::Signal;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $signal = IO::Async::Signal->new(
name => "HUP",
on_receipt => sub {
print "I caught SIGHUP
";
},
);
$loop->add( $signal );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a particular POSIX signal is received.
Multiple objects can be added to a "Loop" that all watch for the same signal. The callback functions will all be invoked, in no particular
order.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_receipt
Invoked when the signal is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
name => STRING
The name of the signal to watch. This should be a bare name like "TERM". Can only be given at construction time.
on_receipt => CODE
CODE reference for the "on_receipt" event.
Once constructed, the "Signal" will need to be added to the "Loop" before it will work.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Signal(3pm)