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#--
# This file is part of Sonic Pi: http://sonic-pi.net
# Full project source: https://github.com/samaaron/sonic-pi
# License: https://github.com/samaaron/sonic-pi/blob/master/LICENSE.md
#
# Copyright 2013, 2014, 2015, 2016 by Sam Aaron (http://sam.aaron.name).
# All rights reserved.
#
# Permission is granted for use, copying, modification, and
# distribution of modified versions of this work as long as this
# notice is included.
#++
require_relative "bus"
require_relative "allocator"
module SonicPi
class BusAllocator
def initialize(max_bus_id, idx_offset=0)
# allocate busses in pairs
@allocation_size = allocation_size
@idx_offset = idx_offset
@max_id = ((max_bus_id - idx_offset) / allocation_size) - 1
@allocator = Allocator.new(@max_id)
end
def allocation_size
1
end
def allocate
new_id = (@allocator.allocate * allocation_size) + @idx_offset
bus_class.new(new_id, self)
end
def release!(id)
idx = (id - @idx_offset) / allocation_size
@allocator.release! idx
end
def reset!
@allocator.reset!
end
def num_busses_allocated
@allocator.num_allocations
end
def to_s
"<#SonicPi::BusAllocator>"
end
private
def bus_class
raise "Implement me!"
end
end
end
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