This is equivalent to and std::priorityQueue<Slot> ordered using the greater operator, which adds an insertion method to add changes to a slot. More...

#include <State.h>

Inheritance diagram for circt::llhd::sim::UpdateQueue:

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Collaboration diagram for circt::llhd::sim::UpdateQueue:

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Public Member Functions
void	insertOrUpdate (Time time, int index, int bitOffset, uint8_t *bytes, unsigned width)
	Check wheter a slot for the given time already exists. More...

void	insertOrUpdate (Time time, unsigned inst)
	Check wheter a slot for the given time already exists. More...

Slot &	getOrCreateSlot (Time time)
	Return a reference to a slot with the given timestamp. More...

const Slot &	top ()
	Get a reference to the current top of the queue (the earliest event available). More...

void	pop ()
	Pop the current top of the queue. More...

Public Attributes
unsigned	events = 0

Private Attributes
unsigned	topSlot = 0

llvm::SmallVector< unsigned, 4 >	unused

Detailed Description

This is equivalent to and std::priorityQueue<Slot> ordered using the greater operator, which adds an insertion method to add changes to a slot.

Definition at line 237 of file State.h.

Member Function Documentation

◆ getOrCreateSlot()

Slot & UpdateQueue::getOrCreateSlot ( Time time )

Return a reference to a slot with the given timestamp.

If such a slot already exists, a reference to it will be returned. Otherwise a reference to a fresh slot is returned.

Definition at line 113 of file State.cpp.

References circt::llhd::sim::Time::time, and circt::llhd::sim::Slot::unused.

◆ insertOrUpdate() [1/2]

void UpdateQueue::insertOrUpdate	(	Time	time,
		int	index,
		int	bitOffset,
		uint8_t *	bytes,
		unsigned	width
	)

Check wheter a slot for the given time already exists.

If that's the case, add the new change to it, else create a new slot and push it to the queue.

Definition at line 102 of file State.cpp.

References width.

Referenced by driveSignal().

◆ insertOrUpdate() [2/2]

void UpdateQueue::insertOrUpdate	(	Time	time,
		unsigned	inst
	)

Check wheter a slot for the given time already exists.

If that's the case, add the scheduled wakeup to it, else create a new slot and push it to the queue.

Definition at line 108 of file State.cpp.

◆ pop()

void UpdateQueue::pop ( )

Pop the current top of the queue.

This marks the current top slot as unused and resets its internal structures such that they can be reused.

Definition at line 171 of file State.cpp.

◆ top()

const Slot & UpdateQueue::top ( )

Get a reference to the current top of the queue (the earliest event available).

Definition at line 161 of file State.cpp.

References assert().

Member Data Documentation

◆ events

unsigned circt::llhd::sim::UpdateQueue::events = 0

Definition at line 265 of file State.h.

◆ topSlot

unsigned circt::llhd::sim::UpdateQueue::topSlot = 0

private

Definition at line 238 of file State.h.

◆ unused

llvm::SmallVector<unsigned, 4> circt::llhd::sim::UpdateQueue::unused