Class: Tupelo::Archiver::Worker
Constant Summary
Client::Worker::GET_TUPLESPACE
Instance Attribute Summary
#arc, #blobber, #client, #client_id, #cmd_queue, #delta, #global_tick, #local_tick, #message_class, #msg_reader_thread, #notify_waiters, #prep_waiters, #read_waiters, #seq, #start_tick, #subspaces, #trans_waiters, #worker_thread
Instance Method Summary
collapse
#<<, #at, #collect_tags, #handle_matcher, #handle_one_request, #handle_seq_closed, #handle_transaction, #handle_unwaiter, #handle_waiter, #in_thread?, #is_meta_tuple?, #log, #make_template, #observe_started_client, #pot_for, #read_messages_from_seq, #record_history, #rot_for, #run_msg_reader_thread, #run_request_loop, #run_worker_thread, #send_transaction, #sniff_meta_tuple, #start, #stop!, #update_to_tick
Constructor Details
#initialize(*args, **opts) ⇒ Worker
Returns a new instance of Worker.
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# File 'lib/tupelo/archiver/worker.rb', line 7
def initialize *args, **opts
super *args
@scheduled_actions = Hash.new {|h,k| h[k] = []}
@opts = opts
end
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Instance Method Details
#at_tick(tick, &action) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 85
def at_tick tick, &action
@scheduled_actions[tick] << action
end
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#fork_for_op(op, sub_delta, tick, stream, req) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 62
def fork_for_op op, sub_delta, tick, stream, req
fork do
begin
case op
when "new client"
raise "Unimplemented" when "get range" raise "Unimplemented" when GET_TUPLESPACE
send_tuplespace stream, sub_delta
else
raise "Unknown operation: #{op.inspect}"
end
rescue EOFError
log.debug {"#{stream.peer_name} disconnected from archiver"}
rescue => ex
log.error "in fork for #{stream || req.io}: #{ex.inspect}"
end
end
ensure
req.io.close
end
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#handle_client_request(req) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 28
def handle_client_request req
case req
when Tupelo::Archiver::ForkRequest
handle_fork_request req
else
super
end
end
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#handle_fork_request(req) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 37
def handle_fork_request req
stream = client.arc_server_stream_for req.io
begin
op, sub_delta, tick = stream.read
rescue EOFError
log.debug {"#{stream.peer_name} disconnected from archiver"}
return
rescue => ex
log.error "in fork for #{stream || req.io}: #{ex.inspect}"
end
log.info {
"#{stream.peer_name} requested #{op.inspect} at tick=#{tick}" +
(sub_delta ? " for #{sub_delta}" : "")}
if tick <= global_tick
fork_for_op op, sub_delta, tick, stream, req
else
at_tick tick do
fork_for_op op, sub_delta, tick, stream, req
end
end
end
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#handle_message(msg) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 89
def handle_message msg
super
actions = @scheduled_actions.delete(global_tick)
actions and actions.each do |action|
action.call
end
end
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#send_tuplespace(stream, sub_delta) ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 97
def send_tuplespace stream, sub_delta
log.info {
"send_tuplespace to #{stream.peer_name} " +
"at tick #{global_tick.inspect} " +
(sub_delta ? " with sub_delta #{sub_delta.inspect}" : "")}
stream << [global_tick]
if sub_delta["request_all"]
tuplespace.each do |tuple, count|
count.times do stream << tuple end
end
else
tags = sub_delta["request_tags"] subs = subspaces.select {|sub| tags.include? sub.tag}
tuplespace.each do |tuple, count|
if subs.any? {|sub| sub === tuple}
count.times do
stream << tuple
end
end
end
end
stream << nil end
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# File 'lib/tupelo/archiver/worker.rb', line 23
def stop
super
tuplespace.flush global_tick
end
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#tuplespace ⇒ Object
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# File 'lib/tupelo/archiver/worker.rb', line 13
def tuplespace
@tuplespace ||= begin
if client.tuplespace.respond_to? :new
client.tuplespace.new **@opts
else
client.tuplespace
end
end
end
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