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// $Id$
// ============================================================================
// = LIBRARY
// examples
//
// = FILENAME
// Reactor_Timer_Queue_Test
//
// = DESCRIPTION
// This example tests the timer queue mechanism of ACE_Reactor.
//
// = AUTHOR
// Nanbor Wang <nw1@cs.wustl.edu> and
// Sergio Flores-Gaitan <sergio@cs.wustl.edu>
//
// ============================================================================
#include "ace/Thread_Manager.h"
#include "ace/Select_Reactor.h"
#include "ace/Reactor.h"
#include "ace/Timer_Heap.h"
#include "Driver.h"
#include "Reactor_Timer_Queue_Test.h"
void
Reactor_Timer_Handler::set_timer_id (long tid)
{
this->tid_ = tid;
}
int
Reactor_Timer_Handler::handle_timeout (const ACE_Time_Value &tv,
const void *)
{
// Macro to avoid "warning: unused parameter" type warning.
ACE_UNUSED_ARG (tv);
ACE_Time_Value txv = ACE_OS::gettimeofday ();
ACE_DEBUG ((LM_DEBUG, "\nTimer #%d fired at %d.%06d (%T)!\n",
this->tid_, txv.sec (), txv.usec ()));
delete this;
return 0;
}
Input_Handler::Input_Handler (ACE_Timer_Queue *tq,
Reactor_Timer_Queue_Test_Driver &timer_queue_driver)
: done_ (0),
driver_ (timer_queue_driver)
{
this->tq_ = tq;
}
int
Input_Handler::done (void)
{
return this->done_;
}
int
Input_Handler::schedule_timer (void *argument)
{
int delay = *(int *) argument;
Reactor_Timer_Handler *th;
long tid;
th = new Reactor_Timer_Handler;
if (th != 0)
{
tid = this->reactor ()->schedule_timer (th,
0,
ACE_Time_Value (0, delay));
if (tid == -1)
ACE_DEBUG ((LM_DEBUG, "Unable to schedule timer\n"));
else
{
ACE_DEBUG ((LM_DEBUG,
"Timer #%d schedule to fire after %d usec from now.\n",
tid,
delay));
th->set_timer_id (tid);
}
}
else
ACE_ERROR_RETURN ((LM_ERROR, "not enough memory?\n"), -1);
return tid;
}
int
Input_Handler::cancel_timer (void *argument)
{
int id = *(int *) argument;
return this->reactor ()->cancel_timer (id);
}
int
Input_Handler::shutdown_timer (void *argument)
{
// Macro to avoid "warning: unused parameter" type warning.
ACE_UNUSED_ARG (argument);
this->done_ = 1;
ACE_DEBUG ((LM_DEBUG, "Shutting down event loop\n"));
return -1;
}
int
Input_Handler::list_timer (void *argument)
{
// Macro to avoid "warning: unused parameter" type warning.
ACE_UNUSED_ARG (argument);
ACE_Timer_Queue_Iterator &iter = this->tq_->iter ();
ACE_DEBUG ((LM_DEBUG, "\n\nTimers in queue:\n"));
for (; ! iter.isdone (); iter.next ())
{
ACE_Timer_Node *tn = iter.item ();
ACE_DEBUG ((LM_DEBUG, "Timer #%d: %d.%06d\n",
tn->get_timer_id (),
tn->get_timer_value ().sec (),
tn->get_timer_value ().usec ()));
}
return 0;
}
int
Input_Handler::handle_input (ACE_HANDLE)
{
return driver_.get_next_request ();
}
Reactor_Timer_Queue_Test_Driver::Reactor_Timer_Queue_Test_Driver (void)
: thandler_ (&timer_queue_, *this)
{
}
Reactor_Timer_Queue_Test_Driver::~Reactor_Timer_Queue_Test_Driver (void)
{
}
int
Reactor_Timer_Queue_Test_Driver::display_menu (void)
{
static char menu[] =
"\n*****\n"
"1) Schedule timer <usec>\n"
"2) Cancel timer <id>\n"
"3) List all timers\n"
"4) Shutdown program\n"
"Enter selection:";
ACE_DEBUG ((LM_DEBUG, "%s", menu));
return 0;
}
int
Reactor_Timer_Queue_Test_Driver::init (void)
{
typedef Command<Input_Handler, Input_Handler::ACTION> CMD;
// initialize <Command>s with their corresponding <Input_Handler> methods.
ACE_NEW_RETURN (schedule_cmd_,
CMD (thandler_, &Input_Handler::schedule_timer),
-1);
ACE_NEW_RETURN (cancel_cmd_,
CMD (thandler_, &Input_Handler::cancel_timer),
-1);
ACE_NEW_RETURN (list_cmd_,
CMD (thandler_, &Input_Handler::list_timer),
-1);
ACE_NEW_RETURN (shutdown_cmd_,
CMD (thandler_, &Input_Handler::shutdown_timer),
-1);
ACE_Reactor::instance ()->set_timer_queue (&timer_queue_);
ACE::register_stdin_handler (&thandler_,
ACE_Reactor::instance (),
ACE_Thread_Manager::instance ());
// print the menu of options.
this->display_menu ();
return 0;
}
// run test was overrun due to the reactive way of handling input.
int
Reactor_Timer_Queue_Test_Driver::run_test (void)
{
ACE_DEBUG ((LM_DEBUG, "TIMER TEST STARTED\n"));
this->init ();
// Run until we say stop.
while (thandler_.done () == 0)
ACE_Reactor::instance ()->handle_events ();
ACE_DEBUG ((LM_DEBUG, "TIMER TEST ENDED\n"));
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class Timer_Queue_Test_Driver <ACE_Timer_Heap, Input_Handler, Input_Handler::ACTION>;
template class Command<Input_Handler, Input_Handler::ACTION>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate Timer_Queue_Test_Driver <ACE_Timer_Heap, Input_Handler, Input_Handler::ACTION>
#pragma instantiate Command<Input_Handler, Input_Handler::ACTION>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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