111 lines
2.5 KiB
C++
111 lines
2.5 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2020, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#pragma once
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#include "DisallowCopyAssign.hh"
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#include "RiseFallMinMax.hh"
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#include "SdcClass.hh"
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namespace sta {
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class PortDelay;
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typedef Vector<PortDelay*> PortDelaySeq;
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// set_input_delay arrival, set_output_delay departure
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class PortDelay
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{
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public:
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RiseFallMinMax *delays() { return &delays_; }
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Pin *pin() const { return pin_; }
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PinSet &leafPins() { return leaf_pins_; }
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Clock *clock() const;
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ClockEdge *clkEdge() const { return clk_edge_; }
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bool sourceLatencyIncluded() const;
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void setSourceLatencyIncluded(bool included);
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bool networkLatencyIncluded() const;
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void setNetworkLatencyIncluded(bool included);
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Pin *refPin() const { return ref_pin_; }
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RiseFall *refTransition() const;
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protected:
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PortDelay(Pin *pin,
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ClockEdge *clk_edge,
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Pin *ref_pin);
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Pin *pin_;
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ClockEdge *clk_edge_;
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bool source_latency_included_;
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bool network_latency_included_;
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Pin *ref_pin_;
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RiseFallMinMax delays_;
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PinSet leaf_pins_;
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private:
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DISALLOW_COPY_AND_ASSIGN(PortDelay);
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};
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class InputDelay : public PortDelay
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{
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public:
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int index() const { return index_; }
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protected:
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InputDelay(Pin *pin,
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ClockEdge *clk_edge,
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Pin *ref_pin,
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int index,
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Network *network);
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private:
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DISALLOW_COPY_AND_ASSIGN(InputDelay);
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int index_;
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friend class Sdc;
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};
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class OutputDelay : public PortDelay
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{
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public:
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protected:
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OutputDelay(Pin *pin,
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ClockEdge *clk_edge,
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Pin *ref_pin,
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Network *network);
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private:
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DISALLOW_COPY_AND_ASSIGN(OutputDelay);
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friend class Sdc;
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};
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// Prediate used to sort port delays.
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class PortDelayLess
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{
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public:
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explicit PortDelayLess(const Network *network);
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bool operator()(const PortDelay *delay1,
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const PortDelay *delay2) const;
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private:
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const Network *network_;
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};
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} // namespace
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