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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
*/
#ifndef __SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__
#define __SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__
#include <queue>
#include "../core/sc_event.hh"
#include "../core/sc_interface.hh"
#include "../core/sc_module.hh" // for sc_gen_unique_name
#include "../core/sc_module_name.hh"
#include "../core/sc_port.hh"
#include "../core/sc_time.hh"
namespace sc_core
{
class sc_event;
class sc_event_queue_if : public virtual sc_interface
{
public:
virtual void notify(double, sc_time_unit) = 0;
virtual void notify(const sc_time &) = 0;
virtual void cancel_all() = 0;
};
class sc_event_queue : public sc_event_queue_if, public sc_module
{
public:
SC_HAS_PROCESS(sc_event_queue);
sc_event_queue(sc_module_name name=
sc_module_name(sc_gen_unique_name("event_queue")));
~sc_event_queue();
virtual const char *kind() const { return "sc_event_queue"; }
virtual void notify(double, sc_time_unit);
virtual void notify(const sc_time &);
virtual void cancel_all();
virtual const sc_event &default_event() const;
private:
void _trigger();
sc_gem5::InternalScEvent _defaultEvent;
std::priority_queue<
sc_time, std::vector<sc_time>, std::greater<sc_time> > _times;
};
// Nonstandard
typedef sc_port<sc_event_queue_if, 1, SC_ONE_OR_MORE_BOUND>
sc_event_queue_port;
} // namespace sc_core
#endif //__SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__
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