Module SimPy.SimulationRT
SimulationRT 1.5.1
__version__ = '$Revision: 1.1.1.1.4.2 $ $Date: 2005/01/30 11:41:26 $ kgm'
LICENSE:
Copyright (C) 2002, 2005 Klaus G. Muller, Tony Vignaux
mailto: kgmuller@xs4all.nl and Tony.Vignaux@vuw.ac.nz
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
END OF LICENSE
Implements SimPy Processes, resources, and the backbone simulation scheduling
by coroutine calls.
Based on generators (Python 2.2 and later)
**Change history:**
4/8/2003: - Experimental introduction of synchronization of simulation
time and real time (idea of Geoff Jarrad of CSIRO -- thanks,
Geoff!).
* Changes made to class __Evlist, _nextev(), simulate()
Dec 11, 2003:
- Updated to Simulation 1.4alpha API
13 Dec 2003: Merged in Monitor and Histogram
27 Feb 2004: Repaired bug in activeQ monitor of class Resource. Now actMon
correctly records departures from activeQ.
19 May 2004: Added erroneously omitted Histogram class.
5 Sep 2004: Added SimEvents synchronization constructs
17 Sep 2004: Added waituntil synchronization construct
28 Sep 2004: Changed handling of real time -- now uses time.clock for Win32, and
time.time for all other OS (works better on Linux, Unix).
01 Dec 2004: SimPy version 1.5
Changes in this module: Repaired SimEvents bug re proc.eventsFired
12 Jan 2005: SimPy version 1.5.1
Changes in this module: Monitor objects now have a default name
'a_Monitor'
Classes |
FIFO |
|
Histogram |
A histogram gathering and sampling class |
Monitor |
Monitored variables |
PriorityQ |
Queue is always ordered according to priority. |
Process |
Superclass of classes which may use generator functions |
Queue |
|
Resource |
Models shared, limited capacity resources with queuing; FIFO is
default queuing discipline. |
SimEvent |
Supports one-shot signalling between processes. |
__Evlist |
Defines event list and operations on it |
_Action |
Structure (who=process owner, generator=process) |
Function Summary |
|
activate (object,
process,
at,
delay,
prior)
Application function to activate passive process. |
|
allEventNotices ()
Returns string with eventlist as list of tuples (eventtime,action) |
|
holdfunc(a)
|
|
initialize()
|
|
now()
|
|
passivatefunc(a)
|
|
queueevfunc(a)
|
|
reactivate (object,
at,
delay,
prior)
Application function to reactivate a process which is active,
suspended or passive. |
|
releasefunc(a)
|
|
requestfunc(a)
|
|
rtnow()
|
|
scheduler (till)
Schedules Processes/semi-coroutines until time 'till'. |
|
simulate (until,
real_time,
rel_speed)
Schedules Processes/semi-coroutines until time 'until' |
|
stopSimulation ()
Application function to stop simulation run |
|
test_demo()
|
|
test_interrupt()
|
|
testSimEvents()
|
|
testwaituntil ()
Demo of waitUntil capability. |
|
waitevfunc(a)
|
|
waituntilfunc(par)
|
|
_startWUStepping ()
Application function to start stepping through simulation for
waituntil construct. |
|
_stopWUStepping ()
Application function to stop stepping through simulation. |
|
_test ()
Gets called by simulate after every event, as long as there are
processes waiting in condQ for a condition to be satisfied. |
|
_waitUntilFunc(proc,
cond)
|
activate(object,
process,
at='undefined',
delay='undefined',
prior=0)
Application function to activate passive process.
-
|
allEventNotices()
Returns string with eventlist as list of tuples
(eventtime,action)
-
|
reactivate(object,
at='undefined',
delay='undefined',
prior=0)
Application function to reactivate a process which is active,
suspended or passive.
-
|
scheduler(till=0)
Schedules Processes/semi-coroutines until time 'till'. Deprecated
since version 0.5.
-
|
simulate(until=0,
real_time=0,
rel_speed=1)
Schedules Processes/semi-coroutines until time 'until'
-
|
stopSimulation()
Application function to stop simulation run
-
|
testwaituntil()
Demo of waitUntil capability.
Scenario: Three workers require sets of tools to do their jobs.
Tools are shared, scarce resources for which they compete.
-
|
_startWUStepping()
Application function to start stepping through simulation for
waituntil construct.
-
|
_stopWUStepping()
Application function to stop stepping through simulation.
-
|
_test()
Gets called by simulate after every event, as long as there are
processes waiting in condQ for a condition to be satisfied. Tests the
conditions for all waiting processes. Where condition satisfied,
reactivates that process immediately and removes it from queue.
-
|
__version__
-
- Type:
-
str
- Value:
|
passivate
-
- Type:
-
int
- Value:
|
queueevent
-
- Type:
-
int
- Value:
|
rtstart
-
- Type:
-
float
- Value:
|
waitevent
-
- Type:
-
int
- Value:
|
waituntil
-
- Type:
-
int
- Value:
|
__TESTING
-
- Type:
-
bool
- Value:
|
_endtime
-
- Type:
-
int
- Value:
|