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Code Block
# Definition of the suite test.
suite test
   edit ECF_INCLUDE "$HOME/course"   # replace '$HOME' with the path to your home directory
   edit ECF_HOME    "$HOME/course"
   family f1
     edit SLEEP 20
     task t1
     task t2
         trigger t1 eq complete   # task t2 will only start when task t1 is complete
         event a                  # task t2 will set an event a
         event b                  # task t2 will set an event b
     task t3
         trigger t2:a             # task t2 will start when event a is set in task t2
     task t4
         trigger t2 eq complete   # task t4 will start when task t2 is complete
         complete t2:b            # task t4 will complete if event b is set is task t2
   endfamily
endsuite

 

Python

#!/usr/bin/env python2.7
import os
import ecflow 

def create_family_f1():
    f1 = ecflow.Family("f1")
    f1.add_variable("SLEEP", 20)
    f1.add_task("t1")
    t2 = f1.add_task("t2")  
    t2.add_trigger("t1 eq complete") 
    t2.add_event("a")
    t2.add_event("b")
    f1.add_task("t3").add_trigger("t2:a")  
    t4 = f1.add_task("t4")
    t4.add_trigger("t2 eq complete")  
    t4.add_complete("t2:b")  
    return f1
      
print "Creating suite definition"   
defs = ecflow.Defs()
suite = defs.add_suite("test")
suite.add_variable("ECF_INCLUDE", os.path.join(os.getenv("HOME"),  "course"))
suite.add_variable("ECF_HOME",    os.path.join(os.getenv("HOME"),  "course"))

suite.add_family( create_family_f1() )
print defs

print "Checking job creation: .ecf -> .job0"   
print defs.check_job_creation()

print "Checking trigger expressions"
print defs.check()

print "Saving definition to file 'test.def'"
defs.save_as_defs("test.def")

What to do

  1. Update test.def or test.py to add a complete expression to task t4
  2. Replace the suite
    python:  python test.py ; python client.py
    text:       ecflow_client --suspend=/test ;  ecflow_client --replace=/test test.def
  3. Observe the tasks in ecflow_ui
  4. See the triggers by selecting t4
  5. See the trigger relation by clicking on the arrow
  6. See the triggers in the tree, using the Show menu
  7. Note the icon indicating that the task has not run
  8. You can modify task t2 to check that task t4 will run when the event is not set
        

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