require_relative 'bench_helper'

module BenchPPrV
  module LibTest
    extend FFI::Library
    ffi_lib LIBTEST_PATH

    attach_function :bench, :bench_PP_v, [ :buffer_in, :buffer_in ], :void
  end


  puts "Benchmark [ :buffer_in, :pointer ], :void performance, #{ITER}x calls"
  ptr = FFI::MemoryPointer.new :int
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(ptr, ptr) }
    }
  }
  puts "Benchmark [ :buffer_in, :buffer_in ], :void with Struct parameters performance #{ITER}x calls"

  class TestStruct < FFI::Struct
    layout :i, :int
  end

  s = TestStruct.new(FFI::MemoryPointer.new(TestStruct));
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(s, s) }
    }
  }

  puts "Benchmark [ :buffer_in, :buffer_in ], :void with nil parameters performance, #{ITER}x calls"
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(nil, nil) }
    }
  }


  puts "Benchmark [ :buffer_in, :buffer_in ], :void with Buffer parameters performance, #{ITER}x calls"
  ptr = FFI::Buffer.new(:int)
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(ptr, ptr) }
    }
  }

  puts "Benchmark [ :buffer_in, :buffer_in ], :void with one nil, one Buffer parameter performance, #{ITER}x calls"
  ptr = FFI::Buffer.new(:int)
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(nil, ptr) }
    }
  }

  puts "Benchmark [ :buffer_in, :buffer_in ], :void with loop-allocated Buffer parameters performance, #{ITER}x calls"
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(FFI::Buffer.new(:int), FFI::Buffer.new(:int)) }
    }
  }

  puts "Benchmark [ :buffer_in, :buffer_in ], :void with loop-allocated MemoryPointer parameters performance, #{ITER}x calls"
  10.times {
    puts Benchmark.measure {
      ITER.times { LibTest.bench(FFI::MemoryPointer.new(:int), FFI::MemoryPointer.new(:int)) }
    }
  }
end