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/*
* Copyright (c) 2010 The Regents of The University of Michigan
* All rights reserved.
*
* 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: Korey Sewell
*
*/
#ifndef __CPU_INORDER_RESOURCE_SKED_HH__
#define __CPU_INORDER_RESOURCE_SKED_HH__
#include <vector>
#include <list>
class ScheduleEntry {
public:
ScheduleEntry(int stage_num, int _priority, int res_num, int _cmd = 0,
int _idx = 0) :
stageNum(stage_num), resNum(res_num), cmd(_cmd),
idx(_idx), priority(_priority)
{ }
// Stage number to perform this service.
int stageNum;
// Resource ID to access
int resNum;
// See specific resource for meaning
unsigned cmd;
// See specific resource for meaning
unsigned idx;
// Some Resources May Need Priority
int priority;
};
class ResourceSked {
public:
typedef std::list<ScheduleEntry*>::iterator SkedIt;
ResourceSked();
void init();
int size();
bool empty();
ScheduleEntry* top();
void pop();
void push(ScheduleEntry* sked_entry);
void pushBefore(ScheduleEntry* sked_entry, int sked_cmd, int sked_cmd_idx);
void print();
private:
SkedIt curSkedEntry;
std::vector<std::list<ScheduleEntry*> > sked;
SkedIt findIterByPriority(ScheduleEntry *sked_entry, int stage_num);
SkedIt findIterByCommand(ScheduleEntry *sked_entry, int stage_num,
int sked_cmd, int sked_cmd_idx = -1);
};
#endif //__CPU_INORDER_RESOURCE_SKED_HH__
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