Friedrich-Alexander-Universität Erlangen-Nürnberg  /   Technische Fakultät  /   Department Informatik
Static Public Member Functions | List of all members
Dispatcher Class Reference
Multithreading

The dispatcher dispatches threads and, by that, puts the scheduler's decisions into action. More...

#include <thread/dispatcher.h>

Inheritance diagram for Dispatcher:
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Static Public Member Functions

static Thread * active ()
 Returns the co-routing currently running on the CPU calling active() More...
 
static bool isActive (const Thread *thread, unsigned *cpu=nullptr)
 Check if thread is currently active. More...
 
static void go (Thread *first)
 This method stores first as life pointer for this CPU and triggers the execution of first. More...
 
static void dispatch (Thread *next)
 Updates the life pointer to next and issues a co-routine change from the old to the new life pointer. More...
 

Detailed Description

The dispatcher dispatches threads and, by that, puts the scheduler's decisions into action.

Note
The dispatcher manages the life pointer that refers to the currently active coroutine and performs the actual switching of processes. For single-core systems, a single life pointer is sufficient, as only a single process can be active at one point in time. On multi-core systems, every CPU needs its own life pointer.

Member Function Documentation

◆ active()

static Thread* Dispatcher::active ( )
inlinestatic

Returns the co-routing currently running on the CPU calling active()

◆ isActive()

static bool Dispatcher::isActive ( const Thread *  thread,
unsigned *  cpu = nullptr 
)
inlinestatic

Check if thread is currently active.

Parameters
threadPointer to the thread in question
cpuwill receive the core number if cpu pointer is not nullptr and the thread is currently active
Returns
true if currently running, false otherwise

◆ go()

void Dispatcher::go ( Thread *  first)
static

This method stores first as life pointer for this CPU and triggers the execution of first.

Parameters
firstFirst co-routine to be executed on this CPU.

◆ dispatch()

void Dispatcher::dispatch ( Thread *  next)
static

Updates the life pointer to next and issues a co-routine change from the old to the new life pointer.

Parameters
nextNext co-routine to be executed.
The documentation for this class was generated from the following files: