In Files

GC

The GC module provides an interface to Ruby’s mark and sweep garbage collection mechanism. Some of the underlying methods are also available via the ObjectSpace module.

Public Class Methods

disable => true or false click to toggle source

Disables garbage collection, returning true if garbage collection was already disabled.

GC.disable   #=> false
GC.disable   #=> true
                
VALUE
rb_gc_disable()
{
    int old = dont_gc;

    dont_gc = Qtrue;
    return old;
}
enable => true or false click to toggle source

Enables garbage collection, returning true if garbage collection was previously disabled.

GC.disable   #=> false
GC.enable    #=> true
GC.enable    #=> false
                
VALUE
rb_gc_enable()
{
    int old = dont_gc;

    dont_gc = Qfalse;
    return old;
}
start => nil click to toggle source
garbage_collect => nil
garbage_collect => nil

Initiates garbage collection, unless manually disabled.

                
VALUE
rb_gc_start()
{
    rb_gc();
    return Qnil;
}
stress => true or false click to toggle source

returns current status of GC stress mode.

                
static VALUE
gc_stress_get(self)
    VALUE self;
{
    return ruby_gc_stress ? Qtrue : Qfalse;
}
stress = bool => bool click to toggle source

updates GC stress mode.

When GC.stress = true, GC is invoked for all GC opportunity: all memory and object allocation.

Since it makes Ruby very slow, it is only for debugging.

                
static VALUE
gc_stress_set(self, bool)
    VALUE self, bool;
{
    rb_secure(2);
    ruby_gc_stress = RTEST(bool);
    return bool;
}

Public Instance Methods

start => nil click to toggle source
garbage_collect => nil
garbage_collect => nil

Initiates garbage collection, unless manually disabled.

                
VALUE
rb_gc_start()
{
    rb_gc();
    return Qnil;
}

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