class Kernel does Systemic { }

Built-in class for providing kernel related information. Usually accessed through the $*KERNEL dynamic variable.

Methods §

method arch §

method arch

Instance method returning the "arch" (as in "architecture") information of the Kernel object. Dies if the "arch" could not be established.

method archname §

method archname

Instance method returning the concatenation of hardware and name.

method bits §

method bits

Instance method returning the number of bits used in the architecture of the processor. Usually 32 or 64.

method cpu-cores §

method cpu-cores(--> Int)

Instance / Class method returning the number of CPU cores that are available.

say $*KERNEL.cpu-cores; # OUTPUT: «8␤»

method cpu-usage §

method cpu-usage(--> Int)

Instance / Class method returning the amount of CPU uses since the start of the program (in microseconds).

method free-memory §

method free-memory(--> Int)

Instance / Class method returning the available memory on the system. When using the JVM, this returns the available memory to the JVM instead. This method is only available in release v2019.06 and later.

method total-memory §

method total-memory(--> Int)

Instance / Class method returning the total memory available to the system. When using the JVM, this returns the total memory available to the JVM instead. This method is only available in release v2019.06 and later.

method endian §

method endian(--> Endian:D)

Class method that returns the Endian object associated with the kernel architecture (either LittleEndian or BigEndian).

method hardware §

Defined as

method hardware

Instance method returning the hardware information of the Kernel object. Dies if the hardware information could not be established.

say $*KERNEL.hardware; # OUTPUT: «x86_64␤»

method hostname §

method hostname

Instance method returning the hostname of the Kernel object.

method release §

method release

Instance method returning the release information of the Kernel object. Dies if the release information could not be established.

method signal §

Defined as:

multi method signal(Kernel:D: Str:D $signal --> Int:D)
multi method signal(Kernel:D: Signal:D \signal --> Int:D)
multi method signal(Kernel:D: Int:D \signal --> Int:D)

Instance method returning the Signal numeric code for a given name for the Kernel object.

say $*KERNEL.signal("INT"); # OUTPUT: «2␤»

method signals §

Instance method returning a list of Signals that are supported by the kernel represented by the Kernel object.

Type Graph §