General

Description

The activity library is responsible for scheduling actions to occur within a simulated world, and for making these actions actually happen at the right time in the right order. It provides the foundation of dynamic, object-oriented simulation within Swarm.

Actions consist of messages to objects, calls to functions, or groups of actions in some defined order. The activity library guarantees that all these actions, and the state changes they produce, occur at predictable points in time. Time is defined by the relative order of actions, and may also be indexed by the discrete values of a world clock.

Macros

• COMPLETEDP(status)

  
  

• DEFINED_timeval_t

• HOLDINGP(status)

  
  

• INITIALIZEDP(status)

  
  

• RELEASEDP(status)

  
  

• RUNNINGP(status)

  
  

• STOPPEDP(status)

  
  

• TERMINATEDP(status)

  
  

• getCurrentAction()

  
  

• getCurrentActivity()

  
  

• getCurrentOwnerActivity()

  
  

• getCurrentSchedule()

  
  

• getCurrentScheduleActivity()

  
  

• getCurrentSwarm()

  
  

• getCurrentSwarmActivity()

  
  

• getCurrentTime()

  
  Macro to get the time of the current activity - only valid when an activity is actually running. Returns a (timeval_t).

• getTopLevelActivity()

  
  Macro to get id of the current topLevelActivity - only valid when an activity is actually running.

Functions

• id _activity_context_error(const char *macroName)

  
  Internal error message issued when a current activity is missing.

Typedefs

• timeval_t

  unsigned long

Globals