Hi,
We recently purchased a 3 tb RAID. In the setup, it created 2 slices, one 2 tb and one 1 tb slice. Right now only the 2 tb slice is visible when booting up. I was told that the second slice needs to be mapped to a lun and a port like the first slice is.
Does anyone know how I would go... (1 Reply)
> how the sendmsg and recvmsg calls will know which kernel module to use (SCTP, RTP etc.) internally(kernel mapping: how kernel handle socket call) (1 Reply)
This is truly embarrassing but I have to know the answer anyway :p
Can anyone share, how to assign keyboard mapping in hp-ux system? Every time I issue command which contain character "@", it'll go the next line. What I need is how to assign the character "@" to @ as it is supposed to be.
... (2 Replies)
Hi,
I just started looking into various aspect of unix shell scripting. I am completely new to the world of UNIX. Could any one help me in solving the following requirement.
I have a parameter file with some data e.g.
sample.param
-------------
Andrew=201
Bob=219
Shelly=239... (4 Replies)
Hi All,
I am working on the Scenario where i need compare the integer value with other using bit mapping.
input file,
1,4,5,4
1,2,4,6
2,3,4,4 like i have many fields.
Script :
i need to filter hte field one value "1" and field 3 value "4" and Filed 4 i need to do the Bitwise... (5 Replies)
Hi All
i am a tad stuck i am trying to map alt gr key so that it acts as a Alt key
i tried xmodmap but it went very wrong and it disabled both alt gr and alt key
thanks
Adam (0 Replies)
Hi we have a situation where some printers are on a server that sometimes has to be rebooted. If this happens the Unix boxes we have that are referencing the printers in the vfstab file fail to work even when the print server is brought back up. Does anyone know if it would be possible to put... (0 Replies)
I have the following arrays with different lengths that I want to map them with the same key.
# Week numbers, 8 columns
@headers = ("2011-34", "2011-35", "2011-36", "2011-37", "2011-38", "2011-39", "2011-40", "2011-41");
%data = ("2011-34", BCE,
"2011-35", YZA,
"2011-36",... (5 Replies)
Hello,
I do not know if this is the right title to use. I have a large dictionary database which has the following structure:
where a b c d e are in English and p q r s t are in a target language., the two separated by the delimiter =.
What I am looking for is a perl script which will take... (5 Replies)
Discussion started by: gimley
5 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)