RTT::os::Timer Class Reference

#include <Timer.hpp>

Inheritance diagram for RTT::os::Timer:
Inheritance graph
[legend]

List of all members.

Public Types

typedef int TimerId
typedef int TimerId

Public Member Functions

bool arm (TimerId timer_id, Seconds wait_time)
bool arm (TimerId timer_id, Seconds wait_time)
bool isArmed (TimerId timer_id) const
bool isArmed (TimerId timer_id) const
bool killTimer (TimerId timer_id)
bool killTimer (TimerId timer_id)
void setMaxTimers (TimerId max)
void setMaxTimers (TimerId max)
bool startTimer (TimerId timer_id, Seconds period)
bool startTimer (TimerId timer_id, Seconds period)
virtual void timeout (TimerId timer_id)
virtual void timeout (TimerId timer_id)
 Timer (TimerId max_timers, int scheduler=-1, int priority=0)
 Timer (TimerId max_timers, int scheduler=-1, int priority=0)
TimeService::Seconds timeRemaining (TimerId timer_id) const
TimeService::Seconds timeRemaining (TimerId timer_id) const
 ~Timer ()
 ~Timer ()

Protected Types

typedef TimeService::nsecs Time
typedef TimeService::nsecs Time
typedef std::vector< std::pair
< Time, Time > > 
TimerIds
typedef std::vector< std::pair
< Time, Time > > 
TimerIds

Protected Member Functions

bool breakLoop ()
bool breakLoop ()
void finalize ()
void finalize ()
bool initialize ()
bool initialize ()
void loop ()
void loop ()
void step ()
void step ()

Protected Attributes

Mutex m
bool mdo_quit
Semaphore msem
base::ActivityInterfacemThread
TimerIds mtimers
TimeServicemTimeserv

Detailed Description

This class allows to define a timer object which can be armed in single shot and periodic mode. In Order to use this class, derive your class from Timer and implement the timeout() method. The resolution of this class depends completely on the timer resolution of the underlying operating system.

If you do not attach an activity, the Timer will create a thread of its own and start it. That thread will be stopped and cleaned up when the Timer is destroyed.

Definition at line 66 of file install/include/rtt/os/Timer.hpp.


Member Typedef Documentation

Definition at line 79 of file rtt/os/Timer.hpp.

Definition at line 79 of file install/include/rtt/os/Timer.hpp.

A positive numeric ID representing a timer.

Definition at line 73 of file rtt/os/Timer.hpp.

A positive numeric ID representing a timer.

Definition at line 73 of file install/include/rtt/os/Timer.hpp.

typedef std::vector<std::pair<Time, Time> > RTT::os::Timer::TimerIds [protected]

Index in vector is the timer id. 1st Time is the absolute time upon which the timer expires. 2nd Time is the optional period of the timer.

Definition at line 85 of file rtt/os/Timer.hpp.

typedef std::vector<std::pair<Time, Time> > RTT::os::Timer::TimerIds [protected]

Index in vector is the timer id. 1st Time is the absolute time upon which the timer expires. 2nd Time is the optional period of the timer.

Definition at line 85 of file install/include/rtt/os/Timer.hpp.


Constructor & Destructor Documentation

RTT::Timer::Timer ( TimerId  max_timers,
int  scheduler = -1,
int  priority = 0 
)

Create a timer object which can hold max_timers timers. A Timer must be executed in a non periodic thread (or the main thread) or it will refuse to start. If scheduler is set to -1 (default) no thread is created and you need to attach a thread yourself to this Timer.

Parameters:
max_timers The initial amount of timers this Timer can monitor. Keep as low as possible. See also setMaxTimers().
scheduler The Orocos scheduler type for this timer. ORO_SCHED_OTHER or ORO_SCHED_RT or -1 to attach your own thread.
priority The priority within the scheduler of this timer.

Definition at line 119 of file Timer.cpp.

RTT::Timer::~Timer (  ) 

Definition at line 130 of file Timer.cpp.

RTT::os::Timer::Timer ( TimerId  max_timers,
int  scheduler = -1,
int  priority = 0 
)

Create a timer object which can hold max_timers timers. A Timer must be executed in a non periodic thread (or the main thread) or it will refuse to start. If scheduler is set to -1 (default) no thread is created and you need to attach a thread yourself to this Timer.

Parameters:
max_timers The initial amount of timers this Timer can monitor. Keep as low as possible. See also setMaxTimers().
scheduler The Orocos scheduler type for this timer. ORO_SCHED_OTHER or ORO_SCHED_RT or -1 to attach your own thread.
priority The priority within the scheduler of this timer.
RTT::os::Timer::~Timer (  ) 

Member Function Documentation

bool RTT::os::Timer::arm ( TimerId  timer_id,
Seconds  wait_time 
)

Arm a timer to fire once over wait_time seconds.

Parameters:
timer_id The number of the timer, starting from zero.
wait_time The time in seconds from now, when the timer should expire. This is a floating point number.
See also:
killTimer to disable it before it fires.
bool RTT::Timer::arm ( TimerId  timer_id,
Seconds  wait_time 
)

Arm a timer to fire once over wait_time seconds.

Parameters:
timer_id The number of the timer, starting from zero.
wait_time The time in seconds from now, when the timer should expire. This is a floating point number.
See also:
killTimer to disable it before it fires.

Definition at line 166 of file Timer.cpp.

bool RTT::os::Timer::breakLoop (  )  [protected, virtual]

This method is called by the framework to break out of the loop() method. Reimplement this method to signal loop() to return and return true on success. When this method is not reimplemented by you, it will always return false, denoting that the loop can not be broken. If breakLoop() returns true, the caller will wait until loop() returns.

Returns:
true if the loop could be notified to return.

Reimplemented from RTT::base::RunnableInterface.

bool RTT::Timer::breakLoop (  )  [protected, virtual]

This method is called by the framework to break out of the loop() method. Reimplement this method to signal loop() to return and return true on success. When this method is not reimplemented by you, it will always return false, denoting that the loop can not be broken. If breakLoop() returns true, the caller will wait until loop() returns.

Returns:
true if the loop could be notified to return.

Reimplemented from RTT::base::RunnableInterface.

Definition at line 112 of file Timer.cpp.

void RTT::os::Timer::finalize (  )  [protected, virtual]

The method that will be called after the last periodical execution of step() ( or non periodical execution of loop() ), when the RunnableInterface is stopped.

Implements RTT::base::RunnableInterface.

void RTT::Timer::finalize (  )  [protected, virtual]

The method that will be called after the last periodical execution of step() ( or non periodical execution of loop() ), when the RunnableInterface is stopped.

Implements RTT::base::RunnableInterface.

Definition at line 48 of file Timer.cpp.

bool RTT::os::Timer::initialize (  )  [protected, virtual]

The method that will be called before the first periodical execution of step() ( or non periodical execution of loop() ), when the thread is started.

Implements RTT::base::RunnableInterface.

bool RTT::Timer::initialize (  )  [protected, virtual]

The method that will be called before the first periodical execution of step() ( or non periodical execution of loop() ), when the thread is started.

Implements RTT::base::RunnableInterface.

Definition at line 44 of file Timer.cpp.

bool RTT::os::Timer::isArmed ( TimerId  timer_id  )  const

Check if a given timer id is armed.

Parameters:
timer_id The number of the timer, starting from zero.
bool RTT::Timer::isArmed ( TimerId  timer_id  )  const

Check if a given timer id is armed.

Parameters:
timer_id The number of the timer, starting from zero.

Definition at line 186 of file Timer.cpp.

bool RTT::os::Timer::killTimer ( TimerId  timer_id  ) 

Disable an armed timer.

Parameters:
timer_id The number of the timer, starting from zero.
bool RTT::Timer::killTimer ( TimerId  timer_id  ) 

Disable an armed timer.

Parameters:
timer_id The number of the timer, starting from zero.

Definition at line 213 of file Timer.cpp.

void RTT::os::Timer::loop (  )  [protected, virtual]

The method that will be executed once when this class is run in a non periodic thread. The default implementation calls step() once.

Reimplemented from RTT::base::RunnableInterface.

void RTT::Timer::loop (  )  [protected, virtual]

The method that will be executed once when this class is run in a non periodic thread. The default implementation calls step() once.

Reimplemented from RTT::base::RunnableInterface.

Definition at line 54 of file Timer.cpp.

void RTT::os::Timer::setMaxTimers ( TimerId  max  ) 

Change the maximum number of timers in this object. Any added timer with id >= max will be removed.

void RTT::Timer::setMaxTimers ( TimerId  max  ) 

Change the maximum number of timers in this object. Any added timer with id >= max will be removed.

Definition at line 141 of file Timer.cpp.

bool RTT::os::Timer::startTimer ( TimerId  timer_id,
Seconds  period 
)

Start a periodic timer which starts first over period seconds and then every period seconds.

Parameters:
timer_id The number of the timer, starting from zero.
period The period when the timer should expire. This is a floating point number.
See also:
killTimer to disable it again.
bool RTT::Timer::startTimer ( TimerId  timer_id,
Seconds  period 
)

Start a periodic timer which starts first over period seconds and then every period seconds.

Parameters:
timer_id The number of the timer, starting from zero.
period The period when the timer should expire. This is a floating point number.
See also:
killTimer to disable it again.

Definition at line 147 of file Timer.cpp.

void RTT::os::Timer::step (  )  [protected, virtual]

The method that will be periodically executed when this class is run in a periodic thread.

Implements RTT::base::RunnableInterface.

void RTT::Timer::step (  )  [protected, virtual]

The method that will be periodically executed when this class is run in a periodic thread.

Implements RTT::base::RunnableInterface.

Definition at line 50 of file Timer.cpp.

virtual void RTT::os::Timer::timeout ( TimerId  timer_id  )  [virtual]

This function is called each time an armed or periodic timer expires. The user must implement this method to catch the time outs.

Parameters:
timer_id The number of the timer that expired.
void RTT::Timer::timeout ( TimerId  timer_id  )  [virtual]

This function is called each time an armed or periodic timer expires. The user must implement this method to catch the time outs.

Parameters:
timer_id The number of the timer that expired.

Definition at line 136 of file Timer.cpp.

TimeService::Seconds RTT::os::Timer::timeRemaining ( TimerId  timer_id  )  const

Returns the remaining time before this timer elapses.

Return values:
0.0 if the timer is not armed or has already elapsed.
Returns:
the remaining time in seconds.
double RTT::Timer::timeRemaining ( TimerId  timer_id  )  const

Returns the remaining time before this timer elapses.

Return values:
0.0 if the timer is not armed or has already elapsed.
Returns:
the remaining time in seconds.

Definition at line 197 of file Timer.cpp.


Member Data Documentation

Mutex RTT::os::Timer::m [mutable, protected]

Definition at line 78 of file install/include/rtt/os/Timer.hpp.

bool RTT::os::Timer::mdo_quit [protected]

Definition at line 87 of file install/include/rtt/os/Timer.hpp.

Definition at line 77 of file install/include/rtt/os/Timer.hpp.

Definition at line 76 of file install/include/rtt/os/Timer.hpp.

Definition at line 86 of file install/include/rtt/os/Timer.hpp.

Definition at line 75 of file install/include/rtt/os/Timer.hpp.


The documentation for this class was generated from the following files:
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rtt
Author(s): RTT Developers
autogenerated on Fri Jan 11 09:50:11 2013