sc_event_queue.cc

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/*
 * Copyright 2018 Google, Inc.
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 * modification, are permitted provided that the following conditions are
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 * notice, this list of conditions and the following disclaimer;
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 * neither the name of the copyright holders nor the names of its
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include "systemc/ext/channel/sc_event_queue.hh"
#include "systemc/ext/core/sc_main.hh"
#include "systemc/ext/core/sc_time.hh"
 
namespace sc_core
{
 
sc_event_queue::sc_event_queue(sc_module_name name) :
        sc_interface(), sc_event_queue_if(), sc_module(name)
{
    SC_METHOD(_trigger);
    dont_initialize();
    sensitive << _defaultEvent;
}
 
sc_event_queue::~sc_event_queue() {}
 
void
sc_event_queue::notify(double d, sc_time_unit tu)
{
    notify(sc_time(d, tu));
}
 
void
sc_event_queue::notify(const sc_time &t)
{
    _times.push(sc_time_stamp() + t);
    _defaultEvent.notify(_times.top() - sc_time_stamp());
}
 
void
sc_event_queue::cancel_all()
{
    _defaultEvent.cancel();
    _times = std::priority_queue<
        sc_time, std::vector<sc_time>, std::greater<sc_time> >();
}
 
const sc_event &
sc_event_queue::default_event() const
{
    return _defaultEvent;
}
 
void
sc_event_queue::_trigger()
{
    _times.pop();
    if (!_times.empty())
        _defaultEvent.notify(_times.top() - sc_time_stamp());
}
 
} // namespace sc_core