Class: Gap::Random

Inherits:
Object
  • Object
show all
Defined in:
lib/gap50/samsara/random.rb

Constant Summary collapse

REG = 
{}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Random

Returns a new instance of Random.



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# File 'lib/gap50/samsara/random.rb', line 21

def initialize
    buf = "\0" * 4
    CR_ACQUIRE.call buf, 0, 0, 1, -268435456
    @ptr, = buf.unpack("L")
    self.class.register_auto_release object_id, @ptr
end

Class Method Details

._dispose(ptr) ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 42

def self._dispose(ptr)
    if ptr
        CR_RELEASE.call ptr, 0
    end
end

.auto_release_proc ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 7

def self.auto_release_proc
    proc{|id|
        if REG.include? id
            _dispose REG[id]
            REG.delete id
        end
    }
end

.register_auto_release(id, ptr) ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 16

def self.register_auto_release(id, ptr)
    REG[object_id] = ptr
    ObjectSpace.define_finalizer self, auto_release_proc
end

Instance Method Details

#bytes(len = 16) ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 28

def bytes(len = 16)
    buf = "\0" * len
    CR_GENRANDOM.call @ptr, len, buf
    buf
end

#dispose ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 48

def dispose
   self.class._dispose @ptr
   @ptr = nil
end

#hex(len = 16) ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 34

def hex(len = 16)
    bytes(len).unpack("H*").first
end

#next_int ⇒ Object 



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# File 'lib/gap50/samsara/random.rb', line 38

def next_int
    bytes(4).unpack("L").first
end