Core

The "core" module contains: More...

Collaboration diagram for Core:

Modules
	Attributes
	The ns-3 attribute system is the mechanism used in ns-3 to organize, document, and modify the values used by the various component models.
	Callbacks
	Wrap functions, objects, and arguments into self contained callbacks.
	Command Line Parsing
	A uniform way to specify program documentation, allowed command line arguments and help strings, and set any attribute or global value, all from the command line directly.
	Debugging tools
	Assertions, breakpoints, logging, and abnormal program termination.
	Fatal Error Handlers
	Functions to help clean up when a fatal error is encountered.
	Hash Functions
	Generic Hash function interface.
	High Precision Q64.64
	Functions and class for high precision Q64.64 fixed point arithmetic.
	Object
	Base classes which provide memory management and object aggregation.
	Random Variables
	ns-3 random numbers are provided via instances of ns3::RandomVariableStream.
	Scheduler and Events
	Manage the event list by creating and scheduling events.
	Simulator
	Control the virtual time and the execution of simulation events.
	Smart Pointer
	Heap memory management.
	System Services
	System-independent interfaces to operating system services: files system, threading, wall clock time.
	Testing
	Tools to define and execute unit tests.
	Tracing
	Publish/subscribe tools to collect and report changes to any values used by the various model components.
	Virtual Time
	Management of virtual time in real world units.
	Virtual Time Timer and Watchdog
	The Timer and Watchdog objects both facilitate scheduling functions to execute a specified virtual time in the future.

Files
file	simulation-singleton.h
	ns3::SimulationSingleton declaration and template implementation.
file	singleton.h
	ns3::Singleton declaration and template implementation.

Namespaces
	ns3::Config
	Configuration of simulation parameters and tracing.

Classes
class	ns3::Config::MatchContainer
	hold a set of objects which match a specific search string. More...
class	ns3::SimulationSingleton< T >
	This singleton class template ensures that the type for which we want a singleton has a lifetime bounded by the simulation run lifetime. More...
class	ns3::Singleton< T >
	A template singleton. More...

Detailed Description

The "core" module contains:

• a time management class to hold a time and convert between various time units: ns3::Time
• a scheduler base class used to implement new simulation event schedulers: ns3::Scheduler and ns3::SchedulerFactory
• a simulator class used to create, schedule and cancel events: ns3::Simulator
• a Functor class: ns3::Callback
• an os-independent interface to get access to the elapsed wall clock time: ns3::SystemWallClockMs
• a class to register regression tests with the test manager: ns3::Test and ns3::TestManager
• debugging facilities: Debugging tools
• Random Variables
• a base class for objects which need to support per-instance "attributes" and trace sources: ns3::ObjectBase
• a base class for objects which need to support reference counting and dynamic object aggregation: ns3::Object
• a smart-pointer class ns3::Ptr designed to work together with ns3::Object
• a configuration class used to set and control all attributes and trace sources in a simulation: ns3::Config.