Initial commit

doc/queue_example.py

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+from pypdevs.DEVS import AtomicDEVS, CoupledDEVS
+from pypdevs.simulator import Simulator
+from pypdevs.infinity import INFINITY
+
+class Generator(AtomicDEVS):
+    def __init__(self):
+        AtomicDEVS.__init__(self, "Generator")
+        self.state = True
+        self.outport = self.addOutPort("outport")
+
+    def timeAdvance(self):
+        if self.state:
+            return 1.0
+        else:
+            return INFINITY
+
+    def outputFnc(self):
+        # Our message is simply the integer 5, though this could be anything
+        return {self.outport: [5]}
+
+    def intTransition(self):
+        self.state = False
+        return self.state
+
+class Queue(AtomicDEVS):
+  def __init__(self):
+      AtomicDEVS.__init__(self, "Queue")
+      self.state = None
+      self.processing_time = 1.0
+      self.inport = self.addInPort("input")
+      self.outport = self.addOutPort("output")
+
+  def timeAdvance(self):
+      if self.state is None:
+          return INFINITY
+      else:
+          return self.processing_time
+
+  def outputFnc(self):
+      return {self.outport: [self.state]}
+
+  def intTransition(self):
+      self.state = None
+      return self.state
+
+  def extTransition(self, inputs):
+      self.state = inputs[self.inport][0]
+      return self.state
+
+class CQueue(CoupledDEVS):
+    def __init__(self):
+        CoupledDEVS.__init__(self, "CQueue")
+        self.generator = self.addSubModel(Generator())
+        self.queue = self.addSubModel(Queue())
+        self.connectPorts(self.generator.outport, self.queue.inport)
+
+class DQueue(CoupledDEVS):
+    def __init__(self):
+        CoupledDEVS.__init__(self, "DQueue")
+        self.generator = self.addSubModel(Generator())
+        self.queue1 = self.addSubModel(Queue())
+        self.queue2 = self.addSubModel(Queue())
+        self.connectPorts(self.generator.outport, self.queue1.inport)
+        self.connectPorts(self.generator.outport, self.queue2.inport)
+
+model = CQueue()
+sim = Simulator(model)
+sim.setVerbose()
+sim.simulate()