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/*!
* \file
* \brief Implementation of an event-based simulation class
* \author Anders Persson
*
* -------------------------------------------------------------------------
*
* IT++ - C++ library of mathematical, signal processing, speech processing,
* and communications classes and functions
*
* Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* -------------------------------------------------------------------------
*/
#include <itpp/protocol/events.h>
namespace itpp {
Ttype Event_Queue::t = 0;
unsigned long long int Base_Event::global_id = 0;
std::priority_queue<Base_Event*,
std::deque<Base_Event*, std::allocator<Base_Event*> >,
Compare_Base_Event_Times> Event_Queue::event_queue;
bool Event_Queue::keep_running = false;
void Event_Queue::add(Base_Event *e)
{
e->expire_t = t + e->delta_t;
event_queue.push(e);
}
void Event_Queue::_run()
{
while(!event_queue.empty() && keep_running) {
Base_Event* e = event_queue.top(); // Next event to process.
event_queue.pop(); // Remove event.
if(e->active) { // Only process active events.
t = e->expire_t; // Update current time.
e->exec(); // Execute the event.
}
delete e; // This event is history!
}
}
void Event_Queue::start()
{
keep_running = true;
_run();
}
void Event_Queue::stop()
{
keep_running = false;
}
void Event_Queue::clear()
{
stop();
Base_Event* e;
while(!event_queue.empty()) {
e = event_queue.top();
delete e;
event_queue.pop();
}
t = 0;
}
// void Event_Queue::cancel_all(BaseSignal *s){
// }
} // namespace itpp
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