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systemc: Implement sc_event_queue.

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Change-Id: I58fd72b8c64ee82eb478d810f7114bab7a31cbfa
Reviewed-on: https://gem5-review.googlesource.com/c/13184
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
This commit is contained in:
Gabe Black
2018-09-25 23:59:32 -07:00
parent 028e1c56b6
commit fc752d3f3c
2 changed files with 37 additions and 11 deletions
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34
src/systemc/channel/sc_event_queue.cc
View File

@@ -29,41 +29,55 @@
#include "base/logging.hh"
#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() {}
const char *sc_event_queue::kind() const { return "sc_event_queue"; }
void
sc_event_queue::notify(double, sc_time_unit)
sc_event_queue::notify(double d, sc_time_unit tu)
{
warn("%s not implemented.\n", __PRETTY_FUNCTION__);
notify(sc_time(d, tu));
}
void
sc_event_queue::notify(const sc_time &)
sc_event_queue::notify(const sc_time &t)
{
warn("%s not implemented.\n", __PRETTY_FUNCTION__);
_times.push(sc_time_stamp() + t);
_defaultEvent.notify(_times.top() - sc_time_stamp());
}
void
sc_event_queue::cancel_all()
{
warn("%s not implemented.\n", __PRETTY_FUNCTION__);
_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
{
warn("%s not implemented.\n", __PRETTY_FUNCTION__);
return *(const sc_event *)nullptr;
return _defaultEvent;
}
void
sc_event_queue::_trigger()
{
_times.pop();
if (!_times.empty())
_defaultEvent.notify(_times.top() - sc_time_stamp());
}
} // namespace sc_core

14
src/systemc/ext/channel/sc_event_queue.hh
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@@ -30,6 +30,9 @@
#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"
@@ -53,17 +56,26 @@ class sc_event_queue_if : public virtual sc_interface
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;
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_event _defaultEvent;
std::priority_queue<
sc_time, std::vector<sc_time>, std::greater<sc_time> > _times;
};
// Nonstandard