sc_event_queue.hh revision 13258
1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#ifndef __SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__ 31#define __SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__ 32 33#include <queue> 34 35#include "../core/sc_event.hh" 36#include "../core/sc_interface.hh" 37#include "../core/sc_module.hh" // for sc_gen_unique_name 38#include "../core/sc_module_name.hh" 39#include "../core/sc_port.hh" 40#include "../core/sc_time.hh" 41#include "warn_unimpl.hh" 42 43namespace sc_core 44{ 45 46class sc_event; 47 48class sc_event_queue_if : public virtual sc_interface 49{ 50 public: 51 virtual void notify(double, sc_time_unit) = 0; 52 virtual void notify(const sc_time &) = 0; 53 virtual void cancel_all() = 0; 54}; 55 56class sc_event_queue : public sc_event_queue_if, public sc_module 57{ 58 public: 59 SC_HAS_PROCESS(sc_event_queue); 60 61 sc_event_queue(sc_module_name name= 62 sc_module_name(sc_gen_unique_name("event_queue"))); 63 ~sc_event_queue(); 64 65 virtual const char *kind() const { return "sc_event_queue"; } 66 67 virtual void notify(double, sc_time_unit); 68 virtual void notify(const sc_time &); 69 virtual void cancel_all(); 70 71 virtual const sc_event &default_event() const; 72 73 private: 74 void _trigger(); 75 76 sc_event _defaultEvent; 77 std::priority_queue< 78 sc_time, std::vector<sc_time>, std::greater<sc_time> > _times; 79}; 80 81// Nonstandard 82typedef sc_port<sc_event_queue_if, 1, SC_ONE_OR_MORE_BOUND> 83 sc_event_queue_port; 84 85} // namespace sc_core 86 87#endif //__SYSTEMC_EXT_CHANNEL_SC_EVENT_QUEUE_HH__ 88