NAME
Sun::Solaris::Exacct - exacct system calls and error handling
SYNOPSIS
use Sun::Solaris::Exacct qw(:EXACCT_ALL);
my $ea_rec = getacct(P_PID, $$);
This module provides access to the ea_error(3EXACCT)
function and for all the extended accounting system calls. Constants from the various libexacct(3LIB)
header files are also provided.
Constants
The P_PID
, P_TASKID
, P_PROJID
and all the EW_*
, EP_*
, EXR_*
macros are provided as Perl constants.
Functions
getacct($idtype, $id)
The $idtype
parameter must be either P_TASKID
or P_PID
and $id
must be a corresponding task or process ID. This function returns an object of type Sun::Solaris::Exacct::Object
, representing the unpacked accounting buffer returned by the underlying getacct(2)
system call. In the event of error, undef
is returned.
putacct($idtype, $id, $record)
The $idtype
parameter must be either P_TASKID
or P_PID
and $id
must be a corresponding task or process ID. If $record
is of type Sun::Solaris::Exacct::Object
, it is converted to the corresponding packed libexacct object and passed to the putacct(2)
system call. If $record
is not of type Sun::Solaris::Exacct::Object
it is converted to a string using the normal Perl conversion rules and stored as a raw buffer. For predictable and endian-independent results, any raw buffers should be constructed using the Perl pack()
function. This function returns true
on success and false
on failure.
wracct($idtype, $id, $flags)
The $idtype
parameter must be either P_TASKID
or P_PID
and $id must be a corresponding task or process ID. The $flags
parameter must be either EW_INTERVAL
or EW_PARTIAL
. The parameters are passed directly to the underlying wracct(2)
system call. This function returns true
on success and false
on failure.
ea_error()
This function provides access to the ea_error(3EXACCT)
function. It returns a double-typed scalar that in a numeric context will be one of the EXR_*
constants. In a string context it will be a descriptive error message. This is the exacct equivalent to the $!
(errno
) Perl variable.
ea_error_str()
This function returns a double-typed scalar that in a numeric context will be one of the EXR_*
constants as returned by ea_error
. In a string context it describes the value returned by ea_error
. If ea_error
returns EXR_SYSCALL_FAIL
, the string value returned is the value returned by strerror(3C)
. This function is provided as a convenience so that repeated blocks of code like the following can be avoided:
if (ea_error() == EXR_SYSCALL_FAIL) {
print("error: $!\n");
} else {
print("error: ", ea_error(), "\n");
}
ea_register_catalog($cat_pfx, $catalog_id, $export, @idlist)
This convenience function is a wrapper around the Sun::Solaris::Exacct::Catalog->register()
method.
ea_new_catalog($integer)
ea_new_catalog($cat_obj)
ea_new_catalog($type, $catalog, $id)
These convenience functions are wrappers around the Sun::Solaris::Exacct::Catalog->new()
method. See Sun::Solaris::Exacct::Catalog(3)
.
ea_new_file($name, $oflags, creator => $creator, aflags => $aflags, mode => $mode)
This convenience function is a wrapper around the Sun::Solaris::Exacct::File->new()
method. See Sun::Solaris::Exacct::File(3)
.
ea_new_item($catalog, $value)
This convenience function is a wrapper around the Sun::Solaris::Exacct::Object::Item->new()
method. See Sun::Solaris::Exacct::Object::Item(3)
.
ea_new_group($catalog, @objects)
This convenience function is a wrapper around the Sun::Solaris::Exacct::Object::Group->new()
method. See Exacct::Object::Group(3)
.
ea_dump_object($object, $filehandle)
This convenience function is a wrapper around the Sun::Solaris::Exacct::Object->dump()
method. See Sun::Solaris::Exacct::Object(3)
.
Class methods
None.
Object methods
None.
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:
:SYSCALLS getacct(), putacct(), and wracct()
:LIBCALLS ea_error() and ea_error_str()
:CONSTANTS P_PID, P_TASKID, P_PROJID, EW_*, EP_*, and EXR_*
:SHORTHAND ea_register_catalog(), ea_new_catalog(), ea_new_file(),
ea_new_item(), and ea_new_group()
:ALL :SYSCALLS, :LIBCALLS, :CONSTANTS, and :SHORTHAND
:EXACCT_CONSTANTS :CONSTANTS, plus the :CONSTANTS tags for
Sun::Solaris::Catalog, Sun::Solaris::File,
and Sun::Solaris::Object
:EXACCT_ALL :ALL, plus the :ALL tags for Sun::Solaris::Catalog,
Sun::Solaris::File, and Sun::Solaris::Object
ATTRIBUTES
See attributes(5)
for descriptions of the following attributes:
___________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | CPAN (http://www.cpan.org) |
|_____________________________|_____________________________|
| Interface Stability | Evolving |
|_____________________________|_____________________________|
SEE ALSO
getacct(2)
, putacct(2)
, wracct(2)
, ea_error(3EXACCT)
, Sun::Solaris::Exacct::Catalog(3)
, Sun::Solaris::Exacct::File(3)
, Sun::Solaris::Exacct::Object(3)
, Sun::Solaris::Exacct::Object::Group(3)
, Sun::Solaris::Exacct::Object::Item(3)
, libexacct(3LIB)
, attributes(5)
NOTES
The modules described in the Sun::Solaris::Exacct
manual pages make extensive use of the Perl "double-typed scalar" facility. This facility allows a scalar value to behave either as an integer or as a string, depending upon context. It is the same behavior as exhibited by the $!
Perl variable (errno
). It is useful because it avoids the need to map from an integer value to the corresponding string to display a value. Some examples are provided below:
# Assume $obj is a Sun::Solaris::Exacct::Item
my $type = $obj->type();
# Print "2 EO_ITEM"
printf("%d %s\n", $type, $type);
# Behave as an integer, $i == 2
my $i = 0 + $type;
# Behave as a string, $s = "abc EO_ITEM xyx"
my $s = "abc $type xyz";
Wherever a function or method is documented as returning a double-typed scalar, the returned value exhibits this type of behavior.