gem5
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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) | |
virtual | ~Event () |
virtual const char * | description () const |
Return a C string describing the event. More... | |
void | dump () const |
Dump the current event data. More... | |
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... | |
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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 () |
Get 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 | 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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static int | ckptCount = 0 |
static int | ckptMaxCount = 0 |
static int | ckptPrevCount = -1 |
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typedef unsigned short | FlagsType |
typedef ::Flags< FlagsType > | Flags |
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Flags | getFlags () const |
Accessor for flags. More... | |
bool | isFlagSet (Flags _flags) const |
void | setFlags (Flags _flags) |
Accessor for flags. More... | |
void | clearFlags (Flags _flags) |
void | clearFlags () |
virtual void | trace (const char *action) |
trace event activity 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 260 of file pixelpump.hh.
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private |
Definition at line 262 of file pixelpump.hh.
BasePixelPump::PixelEvent::PixelEvent | ( | const char * | name, |
BasePixelPump * | parent, | ||
CallbackType | func | ||
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Definition at line 299 of file pixelpump.cc.
References parent, and BasePixelPump::pixelEvents.
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inline |
Definition at line 278 of file pixelpump.hh.
References Event::scheduled(), and suspended.
Referenced by BasePixelPump::active().
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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 310 of file pixelpump.cc.
References Drained.
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overridevirtual |
Resume execution after a successful drain.
Reimplemented from Drainable.
Definition at line 318 of file pixelpump.cc.
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inlineoverridevirtual |
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inlineoverridevirtual |
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private |
Definition at line 354 of file pixelpump.cc.
References curTick().
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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 325 of file pixelpump.cc.
References Event::serialize(), and SERIALIZE_SCALAR.
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private |
Definition at line 343 of file pixelpump.cc.
References curTick().
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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 334 of file pixelpump.cc.
References Event::unserialize(), and UNSERIALIZE_SCALAR.
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private |
Definition at line 284 of file pixelpump.hh.
Referenced by name().
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private |
Definition at line 286 of file pixelpump.hh.
Referenced by process().
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private |
Definition at line 285 of file pixelpump.hh.
Referenced by PixelEvent(), and process().
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private |
Definition at line 289 of file pixelpump.hh.
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private |
Definition at line 288 of file pixelpump.hh.
Referenced by active().