Class: SGC::Memory::MemoryPointer

Inherits:

Object

• Object
• SGC::Memory::MemoryPointer

show all

Defined in:

lib/memory/pointer.rb

Overview

Instance Method Summary (collapse)

• - (Object) initialize(addr = nil) constructor

  A memory pointer pointing to address addr.

• - (MemoryPointer) offset(index)

  A memory pointer pointing to the index byte.

• - (Object) ptr

  The internal pointer representation.

• - (Object) ptr=(addr)

  Set this pointer to point to memory address addr.

• - (Object) ref

  The internal representation of a pointer pointing to this memory pointer.

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# File 'lib/memory/pointer.rb', line 37

def initialize(addr = nil)
    @p = FFI::MemoryPointer.new(:pointer)
    @p.write_long(addr.to_i)
end

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# File 'lib/memory/pointer.rb', line 59

def offset(index)
    MemoryPointer.new(@p.read_pointer.to_i + index)
end

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# File 'lib/memory/pointer.rb', line 44

def ptr
    @p.read_pointer
end

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# File 'lib/memory/pointer.rb', line 52

def ptr=(addr)
    @p.write_long(addr.to_i)
end

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# File 'lib/memory/pointer.rb', line 65

def ref
    @p
end