Exacct::Object(3PERL) Perl Library Functions Exacct::Object(3PERL)NAMEExacct::Object - exacct object manipulation
SYNOPSIS
use Sun::Solaris::Exacct::Object qw(:ALL);
print($ea_obj->value(), "\n");
DESCRIPTION
This module is used as a parent of the two possible types of Perl
exacct objects: Items and Groups. An Item is either a single data value
such as the number of seconds of user CPU time consumed by a process,
an embedded Perl exacct object, or a block of raw data. A Group is an
ordered collection of Perl exacct Items such as all of the resource
usage values for a particular process or task. If Groups need to be
nested within each other, the inner Groups can be stored as embedded
Perl exacct objects inside the enclosing Group.
This module contains methods that are common to both Perl exacct Items
and Groups. The attributes of Sun::Solaris::Exacct::Object and all
classes derived from it are read-only after initial creation with
new(). This behavior prevents the inadvertent modification of the
attributes that could produce inconsistent catalog tags and data val‐
ues. The only exception is the array used to store the Items inside a
Group object, which can be modified using the normal Perl array opera‐
tors. See the value() method below.
Constants
EO_ERROR, EO_NONE, EO_ITEM, and EO_GROUP.
Functions
None.
Class methods
dump($object, $filehandle)
This method dumps formatted text representation of a Perl exacct
object to the supplied file handle. If no file handle is specified,
the text representation is dumped to STDOUT. See EXAMPLES below for
sample output.
Object methods
type()
This method returns the type field of the Perl exacct object. The
value of the type field is returned as a dual-typed scalar and is
either EO_ITEM, EO_GROUP, or EO_NONE.
catalog()
This method returns the catalog field of the Perl exacct object.
The value is returned as a Sun::Solaris::Exacct::Catalog object.
match_catalog($catalog)
This method matches the passed catalog tag against the object. True
is returned of a match occurs. Otherwise false is returned. This
method has the same behavior as the underlying ea_match_object_cat‐
alog(3EXACCT) function.
value()
This method returns the value of the Perl exacct object. In the
case of an Item, this object will normally be a Perl scalar, either
a number or string. For raw Items, the buffer contained inside the
object is returned as a Perl string that can be manipulated with
the Perl unpack() function. If the Item contains either a nested
Item or a nested Group, the enclosed Item is returned as a refer‐
ence to an object of the appropriate subtype of the
Sun::Solaris::Exacct::Object class.
For Group objects, if value() is called in a scalar context, the
return value is a reference to the underlying array used to store
the component Items of the Group. Since this array can be manipu‐
lated with the normal Perl array indexing syntax and array opera‐
tors, the objects inside the Group can be manipulated. All objects
in the array must be derived from the Sun::Solaris::Exacct::Object
class. Any attempt to insert something else into the array will
generate a fatal runtime error that can be caught with an eval { }
block.
If value() is called in a list context for a Group object, it
returns a list of all the objects in the Group. Unlike the array
reference returned in a scalar context, this list cannot be manipu‐
lated to add or delete Items from a Group. This mechanism is con‐
siderably faster than the array mechanism described above and is
the preferred mechanism if a Group is being examined in a read-only
manner.
Exports
By default nothing is exported from this module. The following tags can
be used to selectively import constants and functions defined in this
module:
:CONSTANTS EO_ERROR, EO_NONE, EO_ITEM, and EO_GROUP
:ALL :CONSTANTS
EXAMPLES
Example 1: Output of the dump() method for a Perl exacct Group object.
The following is an example of output of the dump() method for a Perl
exacct Group object.
GROUP
Catalog = EXT_GROUP|EXC_DEFAULT|EXD_GROUP_PROC_PARTIAL
ITEM
Catalog = EXT_UINT32|EXC_DEFAULT|EXD_PROC_PID
Value = 3
ITEM
Catalog = EXT_UINT32|EXC_DEFAULT|EXD_PROC_UID
Value = 0
ITEM
Catalog = EXT_UINT32|EXC_DEFAULT|EXD_PROC_GID
Value = 0
ITEM
Catalog = EXT_UINT32|EXC_DEFAULT|EXD_PROC_PROJID
Value = 0
ITEM
Catalog = EXT_UINT32|EXC_DEFAULT|EXD_PROC_TASKID
Value = 0
ITEM
Catalog = EXT_STRING|EXC_DEFAULT|EXD_PROC_COMMAND
Value = fsflush
ENDGROUP
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWpl5u │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Evolving │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOea_match_object_catalog(3EXACCT), Exacct(3PERL), Exacct::Cata‐
log(3PERL), Exacct::File(3PERL), Exacct::Object::Group(3PERL),
Exacct::Object::Item(3PERL), libexacct(3LIB), attributes(5)SunOS 5.10 1 Dec 2002 Exacct::Object(3PERL)
