qk.cpp File Reference

QK/C++ preemptive kernel core functions. More...

#include "qf_port.hpp"
#include "qf_pkg.hpp"
#include "qassert.h"
#include "qs_port.hpp"
#include "qs_pkg.hpp"

Include dependency graph for qk.cpp:

Go to the source code of this file.

Namespaces
	QP
	namespace associated with the QP/C++ framework

Functions
static void	initial_events (void)
	process all events posted during initialization *‍/ More...
std::uint_fast8_t	QK_sched_ (void) noexcept
	QK scheduler finds the highest-priority thread ready to run. More...
void	QK_activate_ (void) noexcept
	QK activator activates the next active object. The activated AO preempts. More...

Variables
QK_Attr	QK_attr_
	global attributes of the QK kernel More...

Detailed Description

QK/C++ preemptive kernel core functions.

Definition in file qk.cpp.

Function Documentation

QK_sched_()

std::uint_fast8_t QK_sched_ ( void  )

noexcept

QK scheduler finds the highest-priority thread ready to run.

Description

The QK scheduler finds out the priority of the highest-priority AO that (1) has events to process and (2) has priority that is above the current priority.

Returns

the 1-based priority of the the active object, or zero if no eligible active object is ready to run.

Attention

QK_sched_() must be always called with interrupts disabled and returns with interrupts disabled.

Definition at line 329 of file qk.cpp.

QK_activate_()

void QK_activate_ ( void  )

noexcept

QK activator activates the next active object. The activated AO preempts.

Description

QK_activate_() activates ready-to run AOs that are above the initial active priority (QK_attr_.actPrio).

Note

The activator might enable interrupts internally, but always returns with interrupts disabled.

Definition at line 356 of file qk.cpp.

Variable Documentation

QK_attr_

QK_Attr QK_attr_

global attributes of the QK kernel

Definition at line 60 of file qk.cpp.