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  1. Friedrich-Alexander-Universität
  2. Technische Fakultät
  3. Department Informatik
Friedrich-Alexander-Universität Lehrstuhl für Informatik 4 (Systemsoftware)
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              Dokumentation

              Public Member Functions | List of all members
              IdleThread Class Reference

              Thread that is executed when there is nothing to do for this core. More...

              #include <thread/idlethread.h>

              + Inheritance diagram for IdleThread:
              Video: https://sys.cs.fau.de/lehre/ss22/bst/uebung/doc/extern/classIdleThread__inherit__graph.svg
              [legend]
              + Collaboration diagram for IdleThread:
              Video: https://sys.cs.fau.de/lehre/ss22/bst/uebung/doc/extern/classIdleThread__coll__graph.svg
              [legend]

              Public Member Functions

              void action () override
               Wait for a thread to become ready and sleep in the meantime.
               
              - Public Member Functions inherited from Thread
               Thread ()
               Constructor Initializes the context using prepareContext with the highest aligned address of the reserved_stack_space array as stack pointer (top of stack). More...
               
              void go ()
               Activates the first thread on this CPU. More...
               
              void resume (Thread *next)
               Switches from the currently running thread to the next one. More...
               
              Waitingroom * getWaitingroom () const
               Returns the Waitingroom in which the thread is currently waiting. More...
               
              void setWaitingroom (Waitingroom *w)
               Marks the thread as waiting for an event in Waitingroom w. More...
               

              Additional Inherited Members

              - Public Attributes inherited from Thread
              const size_t id
               Unique ID of thread.
               
              volatile bool kill_flag
               Marker for a dying thread.
               
              - Static Public Attributes inherited from Thread
              static const size_t STACK_SIZE = 4096
               Stack size for each thread.
               
              - Static Protected Member Functions inherited from Thread
              static void kickoff (Thread *object)
               Function to start a thread. More...
               
              - Protected Attributes inherited from Thread
              StackPointer stackpointer
               Current stack pointer of thread for context switch.
               

              Detailed Description

              Thread that is executed when there is nothing to do for this core.

              Using the IdleThread simplifies the idea of waiting and is an answer to the questions that arise once the ready queue is empty.

              Note
              Instance of this class should never be inserted into the scheduler's ready queue, as the IdleThread should only be executed if there is no proper work to do.

              The documentation for this class was generated from the following files:
              • thread/idlethread.h
              • thread/idlethread.cc
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