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// OpenSTA, Static Timing Analyzer
// Copyright (c) 2019, Parallax Software, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
#ifndef STA_MIN_PULSE_WIDTH_H
#define STA_MIN_PULSE_WIDTH_H
#include "DisallowCopyAssign.hh"
#include "SdcClass.hh"
#include "SearchClass.hh"
#include "StaState.hh"
#include "PathRef.hh"
namespace sta {
class TransRiseFall;
class MinPulseWidthCheck;
class MinPulseWidthCheckVisitor;
class CheckMinPulseWidths
{
public:
explicit CheckMinPulseWidths(StaState *sta);
~CheckMinPulseWidths();
void clear();
// Min pulse width checks for pins.
// corner=nullptr checks all corners.
MinPulseWidthCheckSeq &check(PinSeq *pins,
const Corner *corner);
// All min pulse width checks.
// corner=nullptr checks all corners.
MinPulseWidthCheckSeq &check(const Corner *corner);
// All violating min pulse width checks.
// corner=nullptr checks all corners.
MinPulseWidthCheckSeq &violations(const Corner *corner);
// Min pulse width check with the least slack.
// corner=nullptr checks all corners.
MinPulseWidthCheck *minSlackCheck(const Corner *corner);
protected:
void visitMinPulseWidthChecks(MinPulseWidthCheckVisitor *visitor);
void visitMinPulseWidthChecks(Vertex *vertex,
MinPulseWidthCheckVisitor *visitor);
MinPulseWidthCheckSeq checks_;
StaState *sta_;
private:
DISALLOW_COPY_AND_ASSIGN(CheckMinPulseWidths);
};
class MinPulseWidthCheck
{
public:
explicit MinPulseWidthCheck();
MinPulseWidthCheck(Path *open_path);
MinPulseWidthCheck *copy();
Pin *pin(const StaState *sta) const;
const TransRiseFall *openTransition(const StaState *sta) const;
Arrival width(const StaState *sta) const;
float minWidth(const StaState *sta) const;
Slack slack(const StaState *sta) const;
Path *openPath() { return &open_path_; }
Corner *corner(const StaState *sta) const;
const Path *openPath() const { return &open_path_; }
Arrival openArrival(const StaState *sta) const;
void closePath(const StaState *sta,
// Return value.
PathVertex &close) const;
Arrival closeArrival(const StaState *sta) const;
Arrival openDelay(const StaState *sta) const;
Arrival closeDelay(const StaState *sta) const;
float closeOffset(const StaState *sta) const;
ClockEdge *openClkEdge(const StaState *sta) const;
ClockEdge *closeClkEdge(const StaState *sta) const;
Crpr commonClkPessimism(const StaState *sta) const;
protected:
// Open path of the pulse.
PathRef open_path_;
private:
DISALLOW_COPY_AND_ASSIGN(MinPulseWidthCheck);
};
class MinPulseWidthSlackLess
{
public:
explicit MinPulseWidthSlackLess(const StaState *sta);
bool operator()(const MinPulseWidthCheck *check1,
const MinPulseWidthCheck *check2) const;
private:
const StaState *sta_;
};
} // namespace
#endif
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