Orocos Real-Time Toolkit
2.9.0
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A PeriodicActivity is the general implementation of a Activity which has (realtime) periodic constraints. More...
#include <rtt/extras/PeriodicActivity.hpp>
Public Types | |
typedef boost::shared_ptr< ActivityInterface > | shared_ptr |
Public Member Functions | |
PeriodicActivity (int priority, Seconds period, base::RunnableInterface *r=0) | |
Create a Periodic Activity with a given priority and period. More... | |
PeriodicActivity (int scheduler, int priority, Seconds period, base::RunnableInterface *r=0) | |
Create a Periodic Activity with a given scheduler type, priority and period. More... | |
PeriodicActivity (int scheduler, int priority, Seconds period, unsigned cpu_affinity, base::RunnableInterface *r=0) | |
Create a Periodic Activity with a given scheduler type, priority and period. More... | |
PeriodicActivity (TimerThreadPtr thread, base::RunnableInterface *r=0) | |
Create a Periodic Activity executing in a given thread. More... | |
PeriodicActivity (Seconds period, TimerThreadPtr thread, base::RunnableInterface *r=0) | |
Create a Periodic Activity with a given period and thread. More... | |
PeriodicActivity (secs sec, nsecs nsec, TimerThreadPtr thread, base::RunnableInterface *r=0) | |
Create a Periodic Activity with a given period and thread. More... | |
virtual | ~PeriodicActivity () |
Stops and terminates a PeriodicActivity. More... | |
virtual bool | start () |
Start the activity. More... | |
virtual bool | execute () |
Execute this activity such that it executes a step or loop of the RunnableInterface. More... | |
virtual bool | trigger () |
Trigger that work has to be done. More... | |
virtual bool | timeout () |
Requests this Activity to wakeup and call step() + work(Timeout). More... | |
virtual bool | stop () |
Stop the activity This will stop the activity by removing it from the 'run-queue' of a thread or call RunnableInterface::breakLoop(). More... | |
virtual bool | isRunning () const |
Query if the activity is initialized and executing. More... | |
virtual bool | isActive () const |
Query if the activity is started. More... | |
virtual bool | isPeriodic () const |
Inspect if this activity is periodic. More... | |
virtual Seconds | getPeriod () const |
Get the periodicity of this activity in Seconds. More... | |
virtual bool | setPeriod (Seconds s) |
Set the periodicity of this activity in Seconds. More... | |
virtual unsigned | getCpuAffinity () const |
Get the cpu affinity of this activity. More... | |
virtual bool | setCpuAffinity (unsigned cpu) |
Set the cpu affinity of this activity. More... | |
virtual os::ThreadInterface * | thread () |
Returns a pointer to the thread which will run this activity. More... | |
virtual bool | initialize () |
virtual void | step () |
virtual void | work (base::RunnableInterface::WorkReason reason) |
virtual void | finalize () |
virtual bool | run (RunnableInterface *r) |
Run exclusively this RunnableInterface. More... | |
virtual RunnableInterface * | getRunner () const |
Returns a pointer to the RunnableInterface instance. More... | |
Protected Member Functions | |
void | init () |
void | disableRun (RunnableInterface *caller) |
This method is only meant for RunnableInterface (ie runner) in order to inform the ActivityInterface it should no longer be used. More... | |
Protected Attributes | |
bool | running |
State info. More... | |
bool | active |
State info. More... | |
TimerThreadPtr | thread_ |
The thread which runs this activity. More... | |
RunnableInterface * | runner |
A PeriodicActivity is the general implementation of a Activity which has (realtime) periodic constraints.
A PeriodicActivity is executed in a TimerThread. Multiple PeriodicActivities having the same priority and periodicity will be executed in the same TimerThread one after the other.
It will execute a base::RunnableInterface, or the equivalent methods in it's own interface when none is given. When initialize() returns false, it will abort start(). If the PeriodicActivity is stop()'ed, finalize() is called in the calling thread of stop().
Definition at line 70 of file PeriodicActivity.hpp.
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inherited |
Definition at line 77 of file ActivityInterface.hpp.
RTT::PeriodicActivity::PeriodicActivity | ( | int | priority, |
Seconds | period, | ||
base::RunnableInterface * | r = 0 |
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Create a Periodic Activity with a given priority and period.
The default scheduler for PeriodicActivity objects is ORO_SCHED_RT.
priority | The priority of this activity. A lookup will be done to locate a suitable TimerThread with the same priority. If it exists and it has the same period, this activity will be executed in that thread. Otherwise, a new TimerThread is created. |
period | The periodicity of the PeriodicActivity |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 52 of file PeriodicActivity.cpp.
References init().
RTT::PeriodicActivity::PeriodicActivity | ( | int | scheduler, |
int | priority, | ||
Seconds | period, | ||
base::RunnableInterface * | r = 0 |
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) |
Create a Periodic Activity with a given scheduler type, priority and period.
scheduler | The scheduler in which the activitie's thread must run. Use ORO_SCHED_OTHER or ORO_SCHED_RT. |
priority | The priority of this activity. A lookup will be done to locate a suitable TimerThread with the same priority. If it exists and it has the same period, this activity will be executed in that thread. Otherwise, a new TimerThread is created. |
period | The periodicity of the PeriodicActivity |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 59 of file PeriodicActivity.cpp.
References init().
RTT::PeriodicActivity::PeriodicActivity | ( | int | scheduler, |
int | priority, | ||
Seconds | period, | ||
unsigned | cpu_affinity, | ||
base::RunnableInterface * | r = 0 |
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) |
Create a Periodic Activity with a given scheduler type, priority and period.
scheduler | The scheduler in which the activitie's thread must run. Use ORO_SCHED_OTHER or ORO_SCHED_RT. |
priority | The priority of this activity. A lookup will be done to locate a suitable TimerThread with the same priority. If it exists and it has the same period, this activity will be executed in that thread. Otherwise, a new TimerThread is created. |
period | The periodicity of the PeriodicActivity |
cpu_affinity | The prefered cpu to run on (a mask) |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 66 of file PeriodicActivity.cpp.
References init().
RTT::PeriodicActivity::PeriodicActivity | ( | TimerThreadPtr | thread, |
base::RunnableInterface * | r = 0 |
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Create a Periodic Activity executing in a given thread.
thread | The thread this Activity will be run in. Both period and priority of this activity will be the same as thread. |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 73 of file PeriodicActivity.cpp.
References init().
RTT::PeriodicActivity::PeriodicActivity | ( | Seconds | period, |
TimerThreadPtr | thread, | ||
base::RunnableInterface * | r = 0 |
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) |
Create a Periodic Activity with a given period and thread.
period | The periodicity of the PeriodicActivity |
thread | The thread this Activity will be run in. The given period must be a multiple of the thread's period. |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 80 of file PeriodicActivity.cpp.
References init().
RTT::PeriodicActivity::PeriodicActivity | ( | secs | sec, |
nsecs | nsec, | ||
TimerThreadPtr | thread, | ||
base::RunnableInterface * | r = 0 |
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) |
Create a Periodic Activity with a given period and thread.
sec | The periodicity of the PeriodicActivity, seconds partition |
nsec | The periodicity of the PeriodicActivity, nanoseconds partition |
thread | The thread this Activity will be run in. The given period (sec, nsec) must be a multiple of the thread's period. |
r | The optional base::RunnableInterface to run exclusively within this Activity |
Definition at line 87 of file PeriodicActivity.cpp.
References init().
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virtual |
Stops and terminates a PeriodicActivity.
Definition at line 95 of file PeriodicActivity.cpp.
References stop().
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inlineprotectedinherited |
This method is only meant for RunnableInterface (ie runner) in order to inform the ActivityInterface it should no longer be used.
run(0) can not be used in this case because it would recurse.
Definition at line 73 of file ActivityInterface.hpp.
Referenced by RTT::base::RunnableInterface::setActivity(), and RTT::base::RunnableInterface::~RunnableInterface().
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virtual |
Execute this activity such that it executes a step or loop of the RunnableInterface.
When you invoke execute() you intend to call the step() or loop() methods. Some activity implementations allow a user controlled execute, others ignore it, in which case execute() returns false.
Semantics: If execute() returns true, the activity has been executed exactly once during execute().
true | When this->isActive() and the implementation allows external executes. |
false | When !this->isActive() or the implementation does not allow external updating. |
Implements RTT::base::ActivityInterface.
Reimplemented in RTT::extras::SimulationActivity.
Definition at line 185 of file PeriodicActivity.cpp.
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virtual |
Definition at line 214 of file PeriodicActivity.cpp.
References RTT::base::RunnableInterface::finalize(), and RTT::base::ActivityInterface::runner.
Referenced by RTT::extras::SimulationActivity::start(), start(), and stop().
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Get the cpu affinity of this activity.
Implements RTT::base::ActivityInterface.
Definition at line 168 of file PeriodicActivity.cpp.
References thread_.
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Get the periodicity of this activity in Seconds.
Implements RTT::base::ActivityInterface.
Definition at line 159 of file PeriodicActivity.cpp.
References thread_.
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virtualinherited |
Returns a pointer to the RunnableInterface instance.
Definition at line 70 of file ActivityInterface.cpp.
References RTT::base::ActivityInterface::runner.
Referenced by RTT::ExecutionEngine::setActivity().
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protected |
Definition at line 100 of file PeriodicActivity.cpp.
Referenced by PeriodicActivity().
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Definition at line 178 of file PeriodicActivity.cpp.
References RTT::base::RunnableInterface::initialize(), and RTT::base::ActivityInterface::runner.
Referenced by RTT::extras::SimulationActivity::start(), and start().
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Query if the activity is started.
This is less strict than isRunning(), it is true during initialize(), step() or loop() and finalize(). Use this method to check if an activity was start()ed.
Implements RTT::base::ActivityInterface.
Definition at line 154 of file PeriodicActivity.cpp.
References active.
Referenced by RTT::extras::SimulationActivity::start(), start(), and stop().
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Inspect if this activity is periodic.
If so, it will call RunnableInterface::step(). If the activity is not periodic, it will call RunnableInterface::loop().
Implements RTT::base::ActivityInterface.
Definition at line 221 of file PeriodicActivity.cpp.
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virtual |
Query if the activity is initialized and executing.
This is more strict than isActive(), it is only true after initialize() is executed and before finalize() is executed. More-over, an Activity may decide to be temporarily not running (not executing code), waiting for a signal to proceed. If this->isActive() and !this->isRunning() then the Activity is in a waiting state.
Implements RTT::base::ActivityInterface.
Definition at line 149 of file PeriodicActivity.cpp.
References running.
Referenced by RTT::extras::SimulationActivity::execute().
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virtualinherited |
Run exclusively this RunnableInterface.
r | The RunnableInterface to run exclusively. |
Definition at line 57 of file ActivityInterface.cpp.
References RTT::base::ActivityInterface::isActive(), RTT::base::ActivityInterface::runner, and RTT::base::RunnableInterface::setActivity().
Referenced by RTT::TaskContext::setActivity().
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Set the cpu affinity of this activity.
Implements RTT::base::ActivityInterface.
Definition at line 173 of file PeriodicActivity.cpp.
References thread_.
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Set the periodicity of this activity in Seconds.
Note that not all activity implementation support periods. A period of s == 0 indicates non periodic. A non supported setting returns false.
Implements RTT::base::ActivityInterface.
Definition at line 164 of file PeriodicActivity.cpp.
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virtual |
Start the activity.
This will call RunnableInterface::initialize() and upon success, effectively start the activity, by running the RunnableInterface::step() or RunnableInterface::loop() in a thread.
Implements RTT::base::ActivityInterface.
Reimplemented in RTT::extras::SimulationActivity.
Definition at line 103 of file PeriodicActivity.cpp.
References active, finalize(), initialize(), isActive(), running, and thread_.
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Definition at line 200 of file PeriodicActivity.cpp.
References RTT::base::ActivityInterface::runner, and RTT::base::RunnableInterface::step().
Referenced by RTT::extras::SimulationActivity::execute().
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Stop the activity This will stop the activity by removing it from the 'run-queue' of a thread or call RunnableInterface::breakLoop().
If no errors occured, RunnableInterface::finalize() is called.
Implements RTT::base::ActivityInterface.
Definition at line 134 of file PeriodicActivity.cpp.
References active, finalize(), isActive(), running, and thread_.
Referenced by ~PeriodicActivity(), and RTT::extras::SimulationActivity::~SimulationActivity().
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Returns a pointer to the thread which will run this activity.
Will not be null.
Implements RTT::base::ActivityInterface.
Reimplemented in RTT::extras::SimulationActivity.
Definition at line 219 of file PeriodicActivity.cpp.
References thread_.
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Requests this Activity to wakeup and call step() + work(Timeout).
Will be ignored for periodic activities, since they use an internal timing mechanism, but can be used for non-periodic activities which want to emulate a timeout happening towards the base::RunnableInterface.
Implements RTT::base::ActivityInterface.
Definition at line 190 of file PeriodicActivity.cpp.
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Trigger that work has to be done.
When you invoke trigger(), you intend to notify the mechanism that calls execute(), that execute() should be called. This allows a separation between actually executing code (execute()) and notifying that code must be executed (trigger()). A trigger may be ignored by the implementation, in which case trigger returns false.
Semantics: If trigger() returns true, the activity will be executed at least once from the moment trigger() is called.
Requests this Activity to wakeup and call step() + work(Trigger). If the thread is periodic, it will continue sleeping for the remainder of the time after the work() has finished.
true | When this->isActive() and the implementation allows external triggers. |
false | When !this->isActive() or the implementation does not allow external triggering. |
Implements RTT::base::ActivityInterface.
Definition at line 195 of file PeriodicActivity.cpp.
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virtual |
Definition at line 207 of file PeriodicActivity.cpp.
References RTT::base::ActivityInterface::runner, and RTT::base::RunnableInterface::work().
Referenced by RTT::extras::SimulationActivity::execute().
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protected |
State info.
Definition at line 228 of file PeriodicActivity.hpp.
Referenced by isActive(), RTT::extras::SimulationActivity::start(), start(), and stop().
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protectedinherited |
Definition at line 65 of file ActivityInterface.hpp.
Referenced by RTT::base::ActivityInterface::ActivityInterface(), RTT::Activity::breakLoop(), RTT::extras::SlaveActivity::execute(), finalize(), RTT::Activity::finalize(), RTT::base::ActivityInterface::getRunner(), RTT::Activity::initialize(), initialize(), RTT::Activity::loop(), RTT::base::ActivityInterface::run(), RTT::extras::SequentialActivity::start(), RTT::extras::SlaveActivity::start(), RTT::Activity::step(), step(), RTT::extras::FileDescriptorActivity::step(), RTT::extras::SequentialActivity::stop(), RTT::extras::SlaveActivity::stop(), RTT::extras::SequentialActivity::trigger(), RTT::extras::FileDescriptorSimulationActivity::work(), work(), RTT::Activity::work(), RTT::extras::FileDescriptorActivity::work(), and RTT::base::ActivityInterface::~ActivityInterface().
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State info.
Definition at line 223 of file PeriodicActivity.hpp.
Referenced by isRunning(), RTT::extras::SimulationActivity::start(), start(), and stop().
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The thread which runs this activity.
Definition at line 233 of file PeriodicActivity.hpp.
Referenced by getCpuAffinity(), getPeriod(), setCpuAffinity(), RTT::extras::SimulationActivity::start(), start(), stop(), and thread().