class HDLRuby::High::Std::ChannelPortA
Describes an access port to a channel.
Public Class Methods
new(namespace,reader_proc,writer_proc,reseter_proc = nil)
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Creates a new channel accesser running in namespace
and reading using reader_proc
, writing using writer_proc
, and reseting using reseter_proc
.
# File lib/HDLRuby/std/channel.rb, line 205 def initialize(namespace,reader_proc,writer_proc,reseter_proc = nil) unless namespace.is_a?(Namespace) raise "Invalid class for a namespace: #{namespace.class}" end @namespace = namespace unless reader_proc || writer_proc then raise "An accesser must have at least a reading or a writing procedure." end @reader_proc = reader_proc ? reader_proc.to_proc : proc { } @writer_proc = writer_proc ? writer_proc.to_proc : proc { } @reseter_proc = reseter_proc ? reseter_proc.to_proc : proc {} @scope = HDLRuby::High.cur_scope end
Public Instance Methods
read(*args,&ruby_block)
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Performs a read on the channel using args
and ruby_block
as arguments.
# File lib/HDLRuby/std/channel.rb, line 221 def read(*args,&ruby_block) # Gain access to the accesser as local variable. reader_proc = @reader_proc # Execute the code generating the accesser in context. HDLRuby::High.space_push(@namespace) HDLRuby::High.cur_block.open do instance_exec(ruby_block,*args,&reader_proc) end HDLRuby::High.space_pop end
reset(*args,&ruby_block)
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Performs a reset on the channel using args
and ruby_block
as arguments.
# File lib/HDLRuby/std/channel.rb, line 247 def reset(*args,&ruby_block) # Gain access to the accesser as local variable. reseter_proc = @reseter_proc # Execute the code generating the accesser in context. HDLRuby::High.space_push(@namespace) HDLRuby::High.cur_block.open do instance_exec(ruby_block,*args,&reseter_proc) end HDLRuby::High.space_pop end
write(*args,&ruby_block)
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Performs a write on the channel using args
and ruby_block
as arguments.
# File lib/HDLRuby/std/channel.rb, line 234 def write(*args,&ruby_block) # Gain access to the accesser as local variable. writer_proc = @writer_proc # Execute the code generating the accesser in context. HDLRuby::High.space_push(@namespace) HDLRuby::High.cur_block.open do instance_exec(ruby_block,*args,&writer_proc) end HDLRuby::High.space_pop end