gem5
v20.0.0.2
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Callback helper class with suspend support. More...
Public Member Functions | |
PixelEvent (const char *name, BasePixelPump *parent, CallbackType func) | |
DrainState | drain () override |
Notify an object that it needs to drain its state. More... | |
void | drainResume () override |
Resume execution after a successful drain. More... | |
void | serialize (CheckpointOut &cp) const override |
Serialize an object. More... | |
void | unserialize (CheckpointIn &cp) override |
Unserialize an object. More... | |
const std::string | name () const override |
void | process () override |
bool | active () const |
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Event (Priority p=Default_Pri, Flags f=0) | |
bool | scheduled () const |
Determine if the current event is scheduled. More... | |
void | squash () |
Squash the current event. More... | |
bool | squashed () const |
Check whether the event is squashed. More... | |
bool | isExitEvent () const |
See if this is a SimExitEvent (without resorting to RTTI) More... | |
bool | isManaged () const |
Check whether this event will auto-delete. More... | |
bool | isAutoDelete () const |
Tick | when () const |
Get the time that the event is scheduled. More... | |
Priority | priority () const |
Get the event priority. More... | |
virtual BaseGlobalEvent * | globalEvent () |
If this is part of a GlobalEvent, return the pointer to the Global Event. More... | |
void | serialize (CheckpointOut &cp) const override |
Serialize an object. More... | |
void | unserialize (CheckpointIn &cp) override |
Unserialize an object. More... | |
virtual | ~Event () |
virtual const char * | description () const |
Return a C string describing the event. More... | |
void | dump () const |
Dump the current event data. More... | |
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Serializable () | |
virtual | ~Serializable () |
void | serializeSection (CheckpointOut &cp, const char *name) const |
Serialize an object into a new section. More... | |
void | serializeSection (CheckpointOut &cp, const std::string &name) const |
void | unserializeSection (CheckpointIn &cp, const char *name) |
Unserialize an a child object. More... | |
void | unserializeSection (CheckpointIn &cp, const std::string &name) |
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DrainState | drainState () const |
Return the current drain state of an object. More... | |
virtual void | notifyFork () |
Notify a child process of a fork. More... | |
Private Types | |
typedef void(BasePixelPump::* | CallbackType) () |
Private Member Functions | |
void | suspend () |
void | resume () |
Private Attributes | |
const std::string | _name |
BasePixelPump & | parent |
const CallbackType | func |
bool | suspended |
Tick | relativeTick |
Additional Inherited Members | |
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typedef int8_t | Priority |
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static const std::string & | currentSection () |
Gets the fully-qualified name of the active section. More... | |
static void | serializeAll (const std::string &cpt_dir) |
static void | unserializeGlobals (CheckpointIn &cp) |
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static const Priority | Minimum_Pri = SCHAR_MIN |
Event priorities, to provide tie-breakers for events scheduled at the same cycle. More... | |
static const Priority | Debug_Enable_Pri = -101 |
If we enable tracing on a particular cycle, do that as the very first thing so we don't miss any of the events on that cycle (even if we enter the debugger). More... | |
static const Priority | Debug_Break_Pri = -100 |
Breakpoints should happen before anything else (except enabling trace output), so we don't miss any action when debugging. More... | |
static const Priority | CPU_Switch_Pri = -31 |
CPU switches schedule the new CPU's tick event for the same cycle (after unscheduling the old CPU's tick event). More... | |
static const Priority | Delayed_Writeback_Pri = -1 |
For some reason "delayed" inter-cluster writebacks are scheduled before regular writebacks (which have default priority). More... | |
static const Priority | Default_Pri = 0 |
Default is zero for historical reasons. More... | |
static const Priority | DVFS_Update_Pri = 31 |
DVFS update event leads to stats dump therefore given a lower priority to ensure all relevant states have been updated. More... | |
static const Priority | Serialize_Pri = 32 |
Serailization needs to occur before tick events also, so that a serialize/unserialize is identical to an on-line CPU switch. More... | |
static const Priority | CPU_Tick_Pri = 50 |
CPU ticks must come after other associated CPU events (such as writebacks). More... | |
static const Priority | CPU_Exit_Pri = 64 |
If we want to exit a thread in a CPU, it comes after CPU_Tick_Pri. More... | |
static const Priority | Stat_Event_Pri = 90 |
Statistics events (dump, reset, etc.) come after everything else, but before exit. More... | |
static const Priority | Progress_Event_Pri = 95 |
Progress events come at the end. More... | |
static const Priority | Sim_Exit_Pri = 100 |
If we want to exit on this cycle, it's the very last thing we do. More... | |
static const Priority | Maximum_Pri = SCHAR_MAX |
Maximum priority. More... | |
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typedef unsigned short | FlagsType |
typedef ::Flags< FlagsType > | Flags |
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Flags | getFlags () const |
bool | isFlagSet (Flags _flags) const |
void | setFlags (Flags _flags) |
void | clearFlags (Flags _flags) |
void | clearFlags () |
virtual void | trace (const char *action) |
This function isn't really useful if TRACING_ON is not defined. More... | |
const std::string | instanceString () const |
Return the instance number as a string. More... | |
void | acquire () |
Memory management hooks for events that have the Managed flag set. More... | |
void | release () |
Managed event removed from the event queue. More... | |
virtual void | acquireImpl () |
virtual void | releaseImpl () |
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Drainable () | |
virtual | ~Drainable () |
void | signalDrainDone () const |
Signal that an object is drained. More... | |
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static const FlagsType | PublicRead = 0x003f |
static const FlagsType | PublicWrite = 0x001d |
static const FlagsType | Squashed = 0x0001 |
static const FlagsType | Scheduled = 0x0002 |
static const FlagsType | Managed = 0x0004 |
static const FlagsType | AutoDelete = Managed |
static const FlagsType | Reserved0 = 0x0008 |
This used to be AutoSerialize. More... | |
static const FlagsType | IsExitEvent = 0x0010 |
static const FlagsType | IsMainQueue = 0x0020 |
static const FlagsType | Initialized = 0x7a40 |
static const FlagsType | InitMask = 0xffc0 |
Callback helper class with suspend support.
Unlike a normal EventWrapper, this class suspends an event on drain() and restarts it at drainResume(). The suspend operation stores the tick relative to curTick() and then deschedules the event. The resume operation schedules the event at curTick() plus the relative tick stored when the event was suspended.
Definition at line 258 of file pixelpump.hh.
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private |
Definition at line 260 of file pixelpump.hh.
BasePixelPump::PixelEvent::PixelEvent | ( | const char * | name, |
BasePixelPump * | parent, | ||
CallbackType | func | ||
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Definition at line 297 of file pixelpump.cc.
References parent, and BasePixelPump::pixelEvents.
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inline |
Definition at line 276 of file pixelpump.hh.
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overridevirtual |
Notify an object that it needs to drain its state.
If the object does not need further simulation to drain internal buffers, it returns DrainState::Drained and automatically switches to the Drained state. If the object needs more simulation, it returns DrainState::Draining and automatically enters the Draining state. Other return values are invalid.
Implements Drainable.
Definition at line 308 of file pixelpump.cc.
References Drained, Event::scheduled(), and suspend().
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overridevirtual |
Resume execution after a successful drain.
Reimplemented from Drainable.
Definition at line 316 of file pixelpump.cc.
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inlineoverridevirtual |
Reimplemented from Event.
Definition at line 271 of file pixelpump.hh.
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inlineoverridevirtual |
Implements Event.
Definition at line 272 of file pixelpump.hh.
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private |
Definition at line 352 of file pixelpump.cc.
References curTick(), parent, relativeTick, EventManager::schedule(), Event::scheduled(), and suspended.
Referenced by drainResume().
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overridevirtual |
Serialize an object.
Output an object's state into the current checkpoint section.
cp | Checkpoint state |
Implements Serializable.
Definition at line 323 of file pixelpump.cc.
References relativeTick, Event::scheduled(), Event::serialize(), SERIALIZE_SCALAR, and suspended.
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private |
Definition at line 341 of file pixelpump.cc.
References curTick(), EventManager::deschedule(), parent, relativeTick, Event::scheduled(), suspended, and Event::when().
Referenced by drain().
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overridevirtual |
Unserialize an object.
Read an object's state from the current checkpoint section.
cp | Checkpoint state |
Implements Serializable.
Definition at line 332 of file pixelpump.cc.
References relativeTick, Event::scheduled(), suspended, Event::unserialize(), and UNSERIALIZE_SCALAR.
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private |
Definition at line 282 of file pixelpump.hh.
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private |
Definition at line 284 of file pixelpump.hh.
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private |
Definition at line 283 of file pixelpump.hh.
Referenced by PixelEvent(), resume(), and suspend().
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private |
Definition at line 287 of file pixelpump.hh.
Referenced by resume(), serialize(), suspend(), and unserialize().
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private |
Definition at line 286 of file pixelpump.hh.
Referenced by drainResume(), resume(), serialize(), suspend(), and unserialize().