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//=============================================================================
/**
* @file Thread_Timer_Queue_Custom_Handler_Test.cpp
*
* $Id$
*
* This test exercises the <ACE_Thread_Timer_Queue_Adapter>
* using an <ACE_Timer_Heap>. It also demonstrates using a custom handler for
* timer events.
*
*
* @author Carlos O'Ryan <coryan@cs.wustl.edu> and Douglas C. Schmidt <schmidt@cs.wustl.edu> and Alon Diamant <diamant.alon@gmail.com>
*/
//=============================================================================
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_sys_time.h"
#include "ace/Task.h"
#include "ace/Timer_Heap_T.h"
#include "ace/Timer_Queue_Adapters.h"
#include "Thread_Timer_Queue_Custom_Handler_Test.h"
#include "ace/Condition_T.h"
#include "ace/Thread_Mutex.h"
Custom_Handler_Input_Task::Custom_Handler_Input_Task (Thread_Timer_Queue *queue,
Thread_Timer_Queue_Custom_Handler_Test &timer_queue_driver)
: ACE_Task_Base (ACE_Thread_Manager::instance ()),
queue_ (queue),
usecs_ (ACE_ONE_SECOND_IN_USECS),
driver_ (timer_queue_driver)
{
}
// Svc method is called from the thread library to read input from the
// user.
int
Custom_Handler_Input_Task::svc (void)
{
for (;;)
// call back to the driver's implementation on how to read and
// parse input.
if (this->driver_.get_next_request () == -1)
break;
// we are done.
this->queue_->deactivate ();
ACE_DEBUG ((LM_DEBUG,
"terminating input thread\n"));
return 0;
}
// schedule a new timer. This method will be called from inside the
// <Timer_Queue_Test_Driver> class. (see Command pattern)
int
Custom_Handler_Input_Task::add_timer (void *argument)
{
u_long useconds = *reinterpret_cast<int *> (argument);
ACE_Time_Value interval (useconds / usecs_,
useconds % usecs_);
ACE_Time_Value expire_at = ACE_OS::gettimeofday () + interval;
Custom_Handler *h;
ACE_NEW_RETURN (h,
Custom_Handler (expire_at),
-1);
int id = queue_->schedule (h, 0, expire_at);
if (id == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"schedule failed"),
-1);
// We store the id into the handler, this is only used to produce
// nicer messages.
h->set_id (id);
ACE_OS::printf ("scheduling timer %d\n",
id);
return 0;
}
// Cancel a timer. This method will be called from inside the
// <Timer_Queue_Test_Driver> class. (see Command pattern)
int
Custom_Handler_Input_Task::cancel_timer (void *argument)
{
return this->queue_->cancel (*reinterpret_cast<int *> (argument));
}
// Lists the timers in the queue. Ignores the argument. This method
// will be called from inside the <Timer_Queue_Test_Driver> class.
// (see Command pattern)
int
Custom_Handler_Input_Task::list_timer (void *)
{
// Dump the timer queue contents.
this->dump ();
return 0;
}
// Shutdown the timer queue. Return -1 indicates to the
// <Timer_Queue_Test_Driver> class that we are done.
int
Custom_Handler_Input_Task::shutdown_timer (void *)
{
#if defined (ACE_LACKS_PTHREAD_CANCEL)
// Cancel the thread timer queue task "voluntarily."
this->queue_->deactivate ();
#else
// Cancel the thread timer queue task "preemptively."
if (ACE_Thread::cancel (this->queue_->thr_id ()) == -1)
ACE_ERROR ((LM_ERROR,
"%p\n",
"cancel"));
#endif /* ACE_LACKS_PTHREAD_CANCEL */
// -1 indicates we are shutting down the application.
return -1;
}
void
Custom_Handler_Input_Task::dump (void)
{
ACE_GUARD (ACE_SYNCH_RECURSIVE_MUTEX, ace_mon, this->queue_->mutex ());
ACE_DEBUG ((LM_DEBUG,
"begin dumping timer queue\n"));
for (Timer_Heap_Iterator i (*this->queue_->timer_queue ());
i.item () != 0;
i.next ())
i.item ()->dump ();
ACE_DEBUG ((LM_DEBUG,
"end dumping timer queue\n"));
}
// constructor
Thread_Timer_Queue_Custom_Handler_Test::Thread_Timer_Queue_Custom_Handler_Test (void)
: input_task_ (&timer_queue_, *this)
{
}
Thread_Timer_Queue_Custom_Handler_Test::~Thread_Timer_Queue_Custom_Handler_Test (void)
{
}
int
Thread_Timer_Queue_Custom_Handler_Test::run_test (void)
{
this->init ();
return 0;
}
int
Thread_Timer_Queue_Custom_Handler_Test::display_menu (void)
{
static char menu[] =
"Usage:\n"
"1 <microseconds>: setups a new timer\n"
"2 <timerid>: removes a timer\n"
"3 : prints timer queue\n"
"4 : exit\n";
ACE_DEBUG ((LM_DEBUG,
"%s",
menu));
return 0;
}
int
Thread_Timer_Queue_Custom_Handler_Test::init (void)
{
typedef Command<Custom_Handler_Input_Task, Custom_Handler_Input_Task::ACTION> CMD;
// initialize the <Command> objects with their corresponding
// methods from <Custom_Handler_Input_Task>
ACE_NEW_RETURN (schedule_cmd_,
CMD (input_task_, &Custom_Handler_Input_Task::add_timer),
-1);
ACE_NEW_RETURN (cancel_cmd_,
CMD (input_task_, &Custom_Handler_Input_Task::cancel_timer),
-1);
ACE_NEW_RETURN (list_cmd_,
CMD (input_task_, &Custom_Handler_Input_Task::list_timer),
-1);
ACE_NEW_RETURN (shutdown_cmd_,
CMD (input_task_, &Custom_Handler_Input_Task::shutdown_timer),
-1);
if (this->input_task_.activate () == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"cannot activate input task"),
-1);
else if (this->timer_queue_.activate () == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"cannot activate timer queue"),
-1);
else if (ACE_Thread_Manager::instance ()->wait () == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"wait on Thread_Manager failed"),
-1);
return 0;
}
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