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/*
* Copyright 2018 Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* 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
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#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
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