Class: FFI::AutoPointer::Releaser

### Home Classes Methods

### In Files

- lib/ffi/autopointer.rb

### Parent

Object

### Methods

- ::new
- #call
- #free

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# FFI::AutoPointer::Releaser

@abstract Base class for {AutoPointer}'s releasers.

    All subclasses of Releaser should define a +#release(ptr)+ method.

A releaser is an object in charge of release an {AutoPointer}.

### Attributes

autorelease[RW]

### Public Class Methods

new(ptr, proc) click to toggle source

@param [Pointer] ptr @param [call] proc @return [nil] A new instance of Releaser.

    # File lib/ffi/autopointer.rb, line 114
    def initialize(ptr, proc)
      @ptr = ptr
      @proc = proc
      @autorelease = true
    end

### Public Instance Methods

call(*args) click to toggle source

@param args Release pointer if `autorelease` is set.

    # File lib/ffi/autopointer.rb, line 133
    def call(*args)
      release(@ptr) if @autorelease && @ptr
    end

free() click to toggle source

@return [nil] Free pointer.

    # File lib/ffi/autopointer.rb, line 122
    def free
      if @ptr
        release(@ptr)
        @autorelease = false
        @ptr = nil
        @proc = nil
      end
    end

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