FvAqtVisionThreads Class Reference

Aquisition-dependant threads. More...

#include <apps/base/aqt_vision_threads.h>

List of all members.


Public Member Functions

 FvAqtVisionThreads (fawkes::Clock *clock)
 Constructor.
 ~FvAqtVisionThreads ()
 Destructor.
void add_waiting_thread (fawkes::Thread *thread)
 Add a thread in waiting state.
void remove_thread (fawkes::Thread *thread)
 Remove a thread.
void remove_waiting_thread (fawkes::Thread *thread)
 Remove waiting thread.
void set_thread_running (fawkes::Thread *thread)
 Mark the thread as running.
bool empty ()
 Check if there is no thread at all.
float empty_time ()
 Get the empty time.
bool has_cyclic_thread ()
 Check if there is at least one cyclic thread.
void wakeup_and_wait_cyclic_threads ()
 Wakeup and wait for all cyclic threads.
void set_prepfin_hold (bool hold)
 Set prepfin hold fo cyclic threads.
bool has_waiting_thread (fawkes::Thread *t)
 Check if the given waiting thread is registered.

Friends

class FvBaseThread
class FvAquisitionThread

Detailed Description

Aquisition-dependant threads.

This class is used for managing the vision threads that depend on a given aquisition thread. Used internally in base vision.

Author:
Tim Niemueller

Definition at line 34 of file aqt_vision_threads.h.

Constructor & Destructor Documentation

FvAqtVisionThreads::FvAqtVisionThreads ( fawkes::Clock *  clock  ) 

Constructor.

Parameters:
clock Clock for timeout handling, system time is used only.

Definition at line 44 of file aqt_vision_threads.cpp.

References fawkes::Clock::get_systime().

FvAqtVisionThreads::~FvAqtVisionThreads (  ) 

Destructor.

Definition at line 61 of file aqt_vision_threads.cpp.

Member Function Documentation

void FvAqtVisionThreads::add_waiting_thread ( fawkes::Thread *  thread  ) 

Add a thread in waiting state.

The thread is marked as dependant but it is otherwise ignored.

Parameters:
thread thread to add for access to the YUV422_PLANAR image.

Definition at line 79 of file aqt_vision_threads.cpp.

References fawkes::ThreadList::push_back_locked().

Referenced by FvBaseThread::register_for_camera().

bool FvAqtVisionThreads::empty (  ) 

Check if there is no thread at all.

Returns:
true if there is no thread in any of the internal running or waiting lists, false otherwise

Definition at line 167 of file aqt_vision_threads.cpp.

Referenced by remove_thread(), and remove_waiting_thread().

float FvAqtVisionThreads::empty_time (  ) 

Get the empty time.

Returns:
the time in seconds since the last thread has been removed.

Definition at line 179 of file aqt_vision_threads.cpp.

References fawkes::Clock::elapsed().

bool FvAqtVisionThreads::has_cyclic_thread (  ) 

Check if there is at least one cyclic thread.

Returns:
true if there is at least one cyclic thread, false otherwise.

Definition at line 145 of file aqt_vision_threads.cpp.

Referenced by wakeup_and_wait_cyclic_threads().

bool FvAqtVisionThreads::has_waiting_thread ( fawkes::Thread *  t  ) 

Check if the given waiting thread is registered.

Parameters:
t thread to check for
Returns:
true if the given thread is marked as waiting, false otherwise

Definition at line 156 of file aqt_vision_threads.cpp.

void FvAqtVisionThreads::remove_thread ( fawkes::Thread *  thread  ) 

Remove a thread.

The thread is removed from all internal structures.

Parameters:
thread thread to remove

Definition at line 110 of file aqt_vision_threads.cpp.

References empty(), fawkes::Clock::get_systime(), and fawkes::ThreadList::remove_locked().

void FvAqtVisionThreads::remove_waiting_thread ( fawkes::Thread *  thread  ) 

Remove waiting thread.

Parameters:
thread thread to remove from waiting structures.

Definition at line 132 of file aqt_vision_threads.cpp.

References empty(), fawkes::Clock::get_systime(), and fawkes::ThreadList::remove_locked().

void FvAqtVisionThreads::set_prepfin_hold ( bool  hold  ) 

Set prepfin hold fo cyclic threads.

Sets prepfin hold for cyclice threads and rolls back if it cannot be set for any of the threads.

Parameters:
hold prepfin hold value
Exceptions:
Exception thrown if setting fails
See also:
Thread::set_prepfin_hold()

ThreadList::set_prepfin_hold()

Definition at line 205 of file aqt_vision_threads.cpp.

References fawkes::ThreadList::set_prepfin_hold().

Referenced by FvAcquisitionThread::set_vt_prepfin_hold().

void FvAqtVisionThreads::set_thread_running ( fawkes::Thread *  thread  ) 

Mark the thread as running.

Parameters:
thread thread to mark as running

Definition at line 89 of file aqt_vision_threads.cpp.

References fawkes::ThreadList::push_back_locked(), fawkes::ThreadList::remove_locked(), and fawkes::VisionAspect::vision_thread_mode().

void FvAqtVisionThreads::wakeup_and_wait_cyclic_threads (  ) 

Wakeup and wait for all cyclic threads.

Definition at line 187 of file aqt_vision_threads.cpp.

References has_cyclic_thread(), fawkes::Barrier::wait(), and fawkes::ThreadList::wakeup().

Referenced by FvAcquisitionThread::loop().

The documentation for this class was generated from the following files: