Betriebssystemtechnik (BST) im SS 2021

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

#include <thread/idlethread.h>

Inheritance diagram for IdleThread:

Collaboration diagram for IdleThread:

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).

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: