Class: Orchestrator::Master

Inherits:
Object
  • Object
show all
Defined in:
lib/orchestrator/remote/master.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(thread) ⇒ Master

Returns a new instance of Master.



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# File 'lib/orchestrator/remote/master.rb', line 8

def initialize(thread)
    @thread = thread

    @accept_connection = method :accept_connection
    @new_connection =    method :new_connection
    @bind_error =        method :bind_error

    @shutdown = true
    @edge_nodes = ::ThreadSafe::Cache.new # id => connection
    @requests   = {} # req_id => defer
    @req_map    = {} # connection => ::Set.new (req_id)

    @signal_bind   = @thread.async method(:bind_actual)
    @signal_unbind = @thread.async method(:unbind_actual)

    @request_id = 0
end

Instance Attribute Details

#thread ⇒ Object (readonly)

Returns the value of attribute thread.



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# File 'lib/orchestrator/remote/master.rb', line 27

def thread
  @thread
end

Instance Method Details

#bind ⇒ Object 



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# File 'lib/orchestrator/remote/master.rb', line 81

def bind
    @signal_bind.call
end

#online?(id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/orchestrator/remote/master.rb', line 72

def online?(id)
    edge = @edge_nodes[id]
    edge && edge.connected ? edge : false
end

#request(edge_id, details) ⇒ Object 



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# File 'lib/orchestrator/remote/master.rb', line 41

def request(edge_id, details)
    defer = @thread.defer

    # Lookup node
    connection = online? id
    if connection
        @thread.schedule do
            if connection.connected
                @request_id += 1
                @requests[@request_id] = defer
                @req_map[connection] ||= ::Set.new
                @req_map[connection] << @request_id
                
                # Send the request
                connection.write(::JSON.fast_generate({
                    id: @request_id,

                })).catch do |reason|
                    on_failure(defer, edge_id, details)
                end
            else
                on_failure(defer, edge_id, details)
            end
        end
    else
        on_failure(defer, edge_id, details)
    end

    defer.promise
end

#unbind ⇒ Object 



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# File 'lib/orchestrator/remote/master.rb', line 77

def unbind
    @signal_unbind.call
end