gem5  v20.1.0.0
Classes | Functions | Variables
eventq.hh File Reference
#include <algorithm>
#include <cassert>
#include <climits>
#include <functional>
#include <iosfwd>
#include <memory>
#include <mutex>
#include <string>
#include "base/debug.hh"
#include "base/flags.hh"
#include "base/types.hh"
#include "debug/Event.hh"
#include "sim/serialize.hh"

Go to the source code of this file.


class  EventBase
 Common base class for Event and GlobalEvent, so they can share flag and priority definitions and accessor functions. More...
class  Event
class  EventQueue
 Queue of events sorted in time order. More...
class  EventQueue::ScopedMigration
class  EventQueue::ScopedRelease
class  EventManager
class  EventWrapper< T, F >
class  EventFunctionWrapper


EventQueuegetEventQueue (uint32_t index)
 Function for returning eventq queue for the provided index. More...
EventQueuecurEventQueue ()
void curEventQueue (EventQueue *q)
bool operator< (const Event &l, const Event &r)
bool operator> (const Event &l, const Event &r)
bool operator<= (const Event &l, const Event &r)
bool operator>= (const Event &l, const Event &r)
bool operator== (const Event &l, const Event &r)
bool operator!= (const Event &l, const Event &r)
void dumpMainQueue ()


Tick simQuantum
 Simulation Quantum for multiple eventq simulation. More...
uint32_t numMainEventQueues
 Current number of allocated main event queues. More...
std::vector< EventQueue * > mainEventQueue
 Array for main event queues. More...
__thread EventQueue_curEventQueue
 The current event queue for the running thread. More...
bool inParallelMode
 Current mode of execution: parallel / serial. More...

Function Documentation

◆ curEventQueue() [1/2]

EventQueue* curEventQueue ( )

◆ curEventQueue() [2/2]

void curEventQueue ( EventQueue q)

Definition at line 84 of file eventq.hh.

References _curEventQueue, and ArmISA::q.

◆ dumpMainQueue()

void dumpMainQueue ( )

Definition at line 363 of file

References ArmISA::i, mainEventQueue, and numMainEventQueues.

◆ getEventQueue()

EventQueue* getEventQueue ( uint32_t  index)

Function for returning eventq queue for the provided index.

The function allocates a new queue in case one does not exist for the index, provided that the index is with in bounds.

Definition at line 61 of file

References csprintf(), MipsISA::index, mainEventQueue, and numMainEventQueues.

Referenced by dumprstStatsHandler(), dumpStatsHandler(), exitNowHandler(), StatTest::init(), ioHandler(), pybind_init_event(), and PollQueue::setupAsyncIO().

Variable Documentation

◆ _curEventQueue

__thread EventQueue* _curEventQueue

The current event queue for the running thread.

Access to this queue does not require any locking from the thread.

Definition at line 57 of file

Referenced by curEventQueue(), and curTick().

◆ inParallelMode

bool inParallelMode

Current mode of execution: parallel / serial.

Definition at line 58 of file

Referenced by EventQueue::deschedule(), EventQueue::reschedule(), EventQueue::schedule(), and simulate().

◆ mainEventQueue

std::vector<EventQueue *> mainEventQueue

◆ numMainEventQueues

uint32_t numMainEventQueues

◆ simQuantum

Tick simQuantum

Simulation Quantum for multiple eventq simulation.

The quantum value is the period length after which the queues synchronize themselves with each other. This means that any event to scheduled on Queue A which is generated by an event on Queue B should be at least simQuantum ticks away in future.

Definition at line 47 of file

Referenced by exitSimLoop(), Stats::schedStatEvent(), and simulate().

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