if there was a 'hole' between threads of the same process. The
fix isn't the most elegant thing in the universe, but it's simple
and it'll do.
git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@957 3ecf2c5c-341e-0410-92b4-d18e462d057c
revisions 846:897 into trunk, with approval and peer review of manager (Luca).
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- Added a wizard just for show, but there is no
interesting cpu-scheduling policy to test it with
- Better textual output.
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imlpementation, so this version should not be considered definitive.
please give me an other day to check it.
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that the size of the history was the coordinate of the instant
to add.
- Corrected a bug in step forward, which was incorrectly assuming
that all processes started at instant 0.
- Added a wizard to show a bug in step forward, which thinks that
the simulation is terminated while it isn't since some processes
are still future.
- Commented some unused code in step forward (extendThread()).
- Still to extract methods from Extender and provide them to
step forward in a more suitable (static) way.
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at all. Compiles and runs, but the output is not
correct. Anyway, now it is just a matter of logics :P
- Corrected some minor bugs in step forward.
- Step forward is now rather messy, but still better than
four hours ago.. altough this can be hard to believe.
- Added some wizards that help finding bugs.
- Rewritten dyn process get_state as it was guilty of
premature optimization :)
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copy constructor and by the add_resource and remove_resource methods
found in ConcreteHistory.
- Scheduler now adds the requests in the queue when appropriate, and
removes them when exhausted.
- Still to implement the management of the state of requests depending
on their position in the queue
- Still to implement the way threads block depending on the state of
their requests
- step_forward now reuses some bunch of code taken from the prototype
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their elapsed time
- requests are now behaving nicely, since they are raised at the correct
instant, and terminated at the right instant
- the ready queues are still not ready, tough :(, anyway, now there is
really nothing else to do before them.
- stepforward is looking much more uglier (if possible).
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when that thread had just been given the cpu.
fixed a bug involving text-simulation displaying the wrong timestamp for
each snaphot. Now the first snapshot printed is correctly tagged "-1".
added (for the sake of lazyness) a method to readyqueue letting anyone
delete the first element on the queue. Not having this would imply
rebuilding the whole queue each time a thread was selected to run.
Small commits avoid complex mergings.
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the step went okay or otherwise if the simulation ended
- Fix simulation states in concrete_simulation.cc
- Manage end of input (now CTRL+D exits the program, and
you can redirect a file in input knowing that at EOF
sgpemv2 will terminate)
- Fix a bug in Scheduler that didn't add the newly created
environment to History when the simulation ended, thus leading
both to a memory leak and an inconsistency in representing
the simulation
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- Start code for double buffering in custom widgets, using
an off-screen pixmap. Problem: we don't know the height from the
beginning
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make life easier to Scheduler
- Go on implementing a bit more of Scheduler::step_forward()
- Remove "places" from SubRequest
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- Work on step_forward() a little more
- Add extra check inside dynamic_thread()::decrease_remaining_time()
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from configure. This is mainly there for buggy compilers / binutils.
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- Commented a lot of code to make it compile-able. But still it doesn`t link (at least for me...)
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if they want to schedule Threads or Processes altogether
- Move setter methods for last_acquisition/last_release from
DynamicSchedulable to DynamicThread
- Rewrite aforesaid methods, along with the respective getter
methods, into Dynamic(Thread|Process)
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rather thant ${prefix}/include/sgpemv2: users will
be able to use directives like "#include <sgpemv2/scheduler.hh>"
in their headers, which reduces name clashes.
- Make _mutex a protected member of Singleton, so that
inheriters can recycle it :-)
- Add exclusive access control for step_forward()
- Add two states (future and exhausted) to Request
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- Add interfaces for Process and Thread into the "sgpem.i" SWIG
interface file, change DynamicSchedulable into Schedulable
- Add dynamic_cast for the return value of ReadyQueue::get_item_at()
into the pyloader "sgpem.i" SWIG interface, so that a Schedulable
can be either recognized as a Thread or a Process
- TODO: wrap STL exceptions in SWIG interface
- Please note that code won't compile until the new History and
Scheduler::step_forward() will be in place. This is a known issue.
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- Explicitly instantiate Singleton templates to be exported from libbackend.so
- Install only header files that are backend interfaces to be exposed to the user
- Don't use full path for including templates in header files
- Instantiate a couple of smart_ptr templates to have their symbols exported outside the DSO. This happens in history.cc. FIXME: the interface for History will definitely need to be reworked, and the two smart_ptr explicit instantiations removed.
- Change SWIG exported interface to make use of Schedulable instead of (Dynamic|Static)Schedulable
- Fix provided policies to make use of the new interface
- TODO: limit the use of smart_ptrs.
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- Fixed a bug preventing registration of managers in PoliciesGatekeeper
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- Renamed SchedulableStatus to DynamicSchedulable
- Implemented almost all methods of DynamicSchedulable
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PythonPolicy in Scheduler, but it cheerfully
segfaults python...
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on Window$ unless you change the string "libpyloader" to
"pyloader" into main.cc)
- Fix Makefile to support module creation and loading
- 2DO:
- Add a class into backend to load and manage plugins
- Install plugins into separate directory
- Remove hardcoded paths
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- added dummy_policy written in C++
- the interpreter is now finished (hopefully)
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