vm

Vocabulary

vm

Class description

A struct that defines the memory layout of the running virtual machine. It is used by the optimizing compiler to calculate field offsets. Its slots are:

nursery

A zone in which all new objects are allocated.

Definition

USING: alien.c-types classes.struct ;

IN: vm

STRUCT: vm
    { ctx context* } { spare-ctx context* } {
        nursery zone initial:
        S{ zone { here 0 } { start 0 } { end 0 } { size 0 } }
    } { cards-offset cell_t initial: 0 }
    { decks-offset cell_t initial: 0 }
    { signal-handler-addr cell_t initial: 0 }
    { faulting? cell_t initial: 0 }
    { special-objects cell_t[special-object-count] }
    { thread void* } { datastack-size cell_t initial: 0 }
    { retainstack-size cell_t initial: 0 }
    { callstack-size cell_t initial: 0 } ;

Methods

USING: classes.struct classes.struct.private kernel vm ;

M: vm clone clone-underlying \ vm memory>struct ; inline


USING: accessors classes.struct combinators.smart vm ;

M: vm struct-slot-values
    {
        [ ctx>> ]
        [ spare-ctx>> ]
        [ nursery>> ]
        [ cards-offset>> ]
        [ decks-offset>> ]
        [ signal-handler-addr>> ]
        [ faulting?>> ]
        [ special-objects>> ]
        [ thread>> ]
        [ datastack-size>> ]
        [ retainstack-size>> ]
        [ callstack-size>> ]
    } cleave>array ; inline