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require_relative 'bench_helper'
module BenchAutoptr
iter = ITER
class Ptr < FFI::AutoPointer
def self.release(ptr)
LibC.free(ptr);
end
end
module LibC
extend FFI::Library
ffi_lib FFI::Library::LIBC
attach_function :malloc, [ :long ], Ptr, :ignore_error => true
attach_function :malloc2, :malloc, [ :long ], :pointer, :ignore_error => true
attach_function :free, [ :pointer ], :void, :ignore_error => true
def self.finalizer(ptr)
proc { LibC.free(ptr) }
end
end
puts "Benchmark AutoPointer.new performance, #{iter}x"
10.times {
puts Benchmark.measure {
iter.times { LibC.malloc(4) }
}
}
puts "Benchmark ObjectSpace finalizer performance, #{iter}x"
10.times {
puts Benchmark.measure {
iter.times {
ptr = LibC.malloc2(4)
ptr2 = FFI::Pointer.new(ptr)
ObjectSpace.define_finalizer(ptr2, LibC.finalizer(ptr))
}
}
}
end
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