This class creates a global list of events that need a pointer to a thread context. More...

#include <cpuevent.hh>

Inheritance diagram for CpuEvent:

Public Member Functions
	CpuEvent (ThreadContext *_tc, Priority p=Default_Pri)

	~CpuEvent ()
	delete the cpu event from the global list. More...

ThreadContext *	getTC ()

Public Member Functions inherited from Event
	Event (Priority p=Default_Pri, Flags f=0)

virtual	~Event ()

virtual const std::string	name () const

virtual const char *	description () const
	Return a C string describing the event. More...

void	dump () const
	Dump the current event data. More...

virtual void	process ()=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...

Public Member Functions inherited from Serializable
	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)

Static Public Member Functions
static void	replaceThreadContext (ThreadContext oldTc, ThreadContext newTc)
	Update all events switching old tc to new tc. More...

Static Public Member Functions inherited from Serializable
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)

Protected Types
typedef std::vector< CpuEvent * >	CpuEventList
	type of global list of cpu events. More...

Protected Types inherited from EventBase
typedef unsigned short	FlagsType

typedef ::Flags< FlagsType >	Flags

Protected Attributes
ThreadContext *	tc
	The thread context that is switched to the new cpus. More...

Static Protected Attributes
static CpuEventList	cpuEventList
	Static list of cpu events that is searched every time a cpu switch happens. More...

Static Protected Attributes inherited from EventBase
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

Additional Inherited Members
Public Types inherited from EventBase
typedef int8_t	Priority

Static Public Attributes inherited from EventBase
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...

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Protected Member Functions inherited from Event
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 ()

Detailed Description

This class creates a global list of events that need a pointer to a thread context.

When a switchover takes place the events can be migrated to the new thread context, otherwise you could have a wake timer interrupt go off on a switched out cpu or other unfortunate events. This object MUST be dynamically allocated to avoid it being deleted after a cpu switch happens.

Definition at line 48 of file cpuevent.hh.