Make Plugin "TU Dortmund" error more generic

[mkuo005]

• Add documentation on how to use the scheduler plugin.
• Make use of executionTiming when instantiating task execution times in the function static async Algorithm(system, executionTiming).

[eyip002]

What is the purpose of simplewebserver.py?

[eyip002]

I get the following error with system-edf.json

127.0.0.1 - - [24/Sep/2022 14:15:38] "OPTIONS / HTTP/1.1" 200 -
b'{"SystemInputStore":[{"name":"SystemInput"}],"SystemOutputStore":[{"name":"SystemOutput"}],"TaskStore":[{"name":"task_a","initialOffset":0,"activationOffset":0,"duration":5,"period":5,"inputs":["in"],"outputs":["out"],"wcet":2,"acet":1.9,"bcet":1.8,"distribution":"Normal"},{"name":"task_b","initialOffset":0,"activationOffset":0,"duration":7,"period":7,"inputs":["in"],"outputs":["out"],"wcet":4,"acet":3.9,"bcet":3.8,"distribution":"Uniform"}],"DependencyStore":[],"EventChainStore":[],"ConstraintStore":[]}'
{'1': {'name': 'task_a', 'initialOffset': 0, 'activationOffset': 0, 'duration': 5, 'period': 5, 'inputs': ['in'], 'outputs': ['out'], 'wcet': 2, 'acet': 1.9, 'bcet': 1.8, 'distribution': 'Normal'}, '2': {'name': 'task_b', 'initialOffset': 0, 'activationOffset': 0, 'duration': 7, 'period': 7, 'inputs': ['in'], 'outputs': ['out'], 'wcet': 4, 'acet': 3.9, 'bcet': 3.8, 'distribution': 'Uniform'}, '0': {'name': '__system'}}
 Type: Task
 ID: 0
 Priority: 0
 Phase: 0 
 BCET: 0 
 WCET: 2.2250738585072014e-308 
 Period: 1000000 
 Deadline: 1000000 
 Response: 0
 Type: Task
 ID: 1
 Priority: 1
 Phase: 0 
 BCET: 1800000 
 WCET: 2000000 
 Period: 5000000 
 Deadline: 5000000 
 Response: 0
 Type: Task
 ID: 2
 Priority: 2
 Phase: 0 
 BCET: 3800000 
 WCET: 4000000 
 Period: 7000000 
 Deadline: 7000000 
 Response: 0
===Begin analysis===
=First analyses (TDA, Davare, Duerr).=
TDA.
=Second analyses (Simulation, Our, Kloda).=
----------------------------------------
Exception occurred during processing of request from ('127.0.0.1', 57220)
Traceback (most recent call last):
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/socketserver.py", line 316, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/socketserver.py", line 347, in process_request
    self.finish_request(request, client_address)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/socketserver.py", line 360, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/socketserver.py", line 747, in __init__
    self.handle()
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/http/server.py", line 427, in handle
    self.handle_one_request()
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/http/server.py", line 415, in handle_one_request
    method()
  File "/Users/kinchee/Documents/University of Bamberg/TU-Dortmund-E2E/main.py", line 67, in do_POST
    schedule = scheduleLetSynchronise(system)
  File "/Users/kinchee/Documents/University of Bamberg/TU-Dortmund-E2E/main.py", line 621, in scheduleLetSynchronise
    result = schedules[0].e2e_result()
IndexError: list index out of range
----------------------------------------

[eyip002]

@mkuo005 see the simplifications in d99fcef and a5775cb

[mkuo005]

simplewebserver.py have no purpose, might have accidently commit it as I was debugging.
It has now been removed 480eb50

[mkuo005]

The error seems to be caused by their code main.py
Line 1009 to 1011

# Skip if there is no corresponding cause-effect chain.
            if len(ce_chains[i]) == 0:
                continue

The tool does not seem to like systems with no event chain. This could be returned directly from the plugin as an error/limitation?

[eyip002]

Are you sure? How come I don't see the following printout in the console log? Is task_sets empty?

https://github.com/mkuo005/end-to-end/blob/5ad82f782bb73580ed33a199d0e4afc0ac07240f/main.py#L1003

[mkuo005]

I do...

TDA.
=Second analyses (Simulation, Our, Kloda).=
=Task set  1
---debug----
[]

It prints once and then escapes..... so no scheudle is made.