a std::priority_queue event scheduler More...
#include "priority-queue-scheduler.h"
Classes | |
class | EventPriorityQueue |
Custom priority_queue which supports remove, and returns entries in increasing time order. More... | |
Public Member Functions | |
PriorityQueueScheduler () | |
Constructor. More... | |
~PriorityQueueScheduler () override | |
Destructor. More... | |
void | Insert (const Scheduler::Event &ev) override |
Insert a new Event in the schedule. More... | |
bool | IsEmpty () const override |
Test if the schedule is empty. More... | |
Scheduler::Event | PeekNext () const override |
Get a pointer to the next event. More... | |
void | Remove (const Scheduler::Event &ev) override |
Remove a specific event from the event list. More... | |
Scheduler::Event | RemoveNext () override |
Remove the earliest event from the event list. More... | |
Public Member Functions inherited from ns3::Scheduler | |
~Scheduler () override=0 | |
Destructor. More... | |
Public Member Functions inherited from ns3::Object | |
Object () | |
Constructor. More... | |
~Object () override | |
Destructor. More... | |
void | AggregateObject (Ptr< Object > other) |
Aggregate two Objects together. More... | |
void | Dispose () |
Dispose of this Object. More... | |
AggregateIterator | GetAggregateIterator () const |
Get an iterator to the Objects aggregated to this one. More... | |
TypeId | GetInstanceTypeId () const override |
Get the most derived TypeId for this Object. More... | |
template<typename T > | |
Ptr< T > | GetObject () const |
Get a pointer to the requested aggregated Object. More... | |
template<> | |
Ptr< Object > | GetObject () const |
Specialization of () for objects of type ns3::Object. More... | |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
Get a pointer to the requested aggregated Object by TypeId. More... | |
template<> | |
Ptr< Object > | GetObject (TypeId tid) const |
Specialization of (TypeId tid) for objects of type ns3::Object. More... | |
void | Initialize () |
Invoke DoInitialize on all Objects aggregated to this one. More... | |
bool | IsInitialized () const |
Check if the object has been initialized. More... | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Default constructor. More... | |
SimpleRefCount (const SimpleRefCount &o[[maybe_unused]]) | |
Copy constructor. More... | |
uint32_t | GetReferenceCount () const |
Get the reference count of the object. More... | |
SimpleRefCount & | operator= (const SimpleRefCount &o[[maybe_unused]]) |
Assignment operator. More... | |
void | Ref () const |
Increment the reference count. More... | |
void | Unref () const |
Decrement the reference count. More... | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. More... | |
void | GetAttribute (std::string name, AttributeValue &value) const |
Get the value of an attribute, raising fatal errors if unsuccessful. More... | |
bool | GetAttributeFailSafe (std::string name, AttributeValue &value) const |
Get the value of an attribute without raising errors. More... | |
void | SetAttribute (std::string name, const AttributeValue &value) |
Set a single attribute, raising fatal errors if unsuccessful. More... | |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
Set a single attribute without raising errors. More... | |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
Connect a TraceSource to a Callback with a context. More... | |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
Connect a TraceSource to a Callback without a context. More... | |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected with a context. More... | |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected without a context. More... | |
Static Public Member Functions | |
static TypeId | GetTypeId () |
Register this type. More... | |
Static Public Member Functions inherited from ns3::Scheduler | |
static TypeId | GetTypeId () |
Register this type. More... | |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId () |
Register this type. More... | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId () |
Get the type ID. More... | |
Private Attributes | |
EventPriorityQueue | m_queue |
The event queue. More... | |
Additional Inherited Members | |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
Copy an Object. More... | |
virtual void | DoDispose () |
Destructor implementation. More... | |
virtual void | DoInitialize () |
Initialize() implementation. More... | |
virtual void | NotifyNewAggregate () |
Notify all Objects aggregated to this one of a new Object being aggregated. More... | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
Complete construction of ObjectBase; invoked by derived classes. More... | |
virtual void | NotifyConstructionCompleted () |
Notifier called once the ObjectBase is fully constructed. More... | |
Related Functions inherited from ns3::ObjectBase | |
static TypeId | GetObjectIid () |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. More... | |
a std::priority_queue event scheduler
This class implements an event scheduler using std::priority_queue
on a std::vector
.
Operation | Amortized Time | Reason |
---|---|---|
Insert() | Logarithmic | std::push_heap() |
IsEmpty() | Constant | std::vector::empty() |
PeekNext() | Constant | std::vector::front() |
Remove() | Linear | std::find() and std::make_heap() |
RemoveNext() | Logarithmic | std::pop_heap() |
Category | Memory | Reason |
---|---|---|
Overhead | 3 x sizeof (*) (24 bytes) | std::vector |
Per Event | 0 | Events stored in std::vector directly |
Definition at line 65 of file priority-queue-scheduler.h.
ns3::PriorityQueueScheduler::PriorityQueueScheduler | ( | ) |
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override |
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static |
Register this type.
Definition at line 44 of file priority-queue-scheduler.cc.
References ns3::TypeId::SetParent().
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overridevirtual |
Insert a new Event in the schedule.
[in] | ev | Event to store in the event list |
Implements ns3::Scheduler.
Definition at line 64 of file priority-queue-scheduler.cc.
References ns3::Scheduler::Event::impl, ns3::Scheduler::Event::key, m_queue, ns3::Scheduler::EventKey::m_ts, ns3::Scheduler::EventKey::m_uid, and NS_LOG_FUNCTION.
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overridevirtual |
Test if the schedule is empty.
true
if the event list is empty and false
otherwise. Implements ns3::Scheduler.
Definition at line 71 of file priority-queue-scheduler.cc.
References m_queue, and NS_LOG_FUNCTION.
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overridevirtual |
Get a pointer to the next event.
This method cannot be invoked if the list is empty.
Implements ns3::Scheduler.
Definition at line 78 of file priority-queue-scheduler.cc.
References m_queue, and NS_LOG_FUNCTION.
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overridevirtual |
Remove a specific event from the event list.
This method cannot be invoked if the list is empty.
[in] | ev | The event to remove |
Implements ns3::Scheduler.
Definition at line 110 of file priority-queue-scheduler.cc.
References m_queue, NS_LOG_FUNCTION, and ns3::PriorityQueueScheduler::EventPriorityQueue::remove().
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overridevirtual |
Remove the earliest event from the event list.
This method cannot be invoked if the list is empty.
Implements ns3::Scheduler.
Definition at line 85 of file priority-queue-scheduler.cc.
References m_queue, and NS_LOG_FUNCTION.
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private |
The event queue.
Definition at line 105 of file priority-queue-scheduler.h.
Referenced by Insert(), IsEmpty(), PeekNext(), Remove(), and RemoveNext().