qk.cpp File Reference

preemptive non-blocking QK kernel implementation More...

#include "qp_port.hpp"
#include "qp_pkg.hpp"
#include "qsafe.h"
#include "qs_port.hpp"
#include "qs_pkg.hpp"

Go to the source code of this file.

Namespaces
namespace	QP
	QP/C++ framework.
namespace	QP::QK
	preemptive, non-blocking kernel
namespace	QP::QF
	QF Active Object Framework.

Functions
QSchedStatus	QP::QK::schedLock (std::uint_fast8_t const ceiling) noexcept
void	QP::QK::schedUnlock (QSchedStatus const prevCeil) noexcept
std::uint_fast8_t	QK_sched_ () noexcept
void	QK_activate_ () noexcept
void	QP::QF::init ()
void	QP::QF::stop ()
int_t	QP::QF::run ()

Variables
QK_Attr	QK_priv_

Detailed Description

preemptive non-blocking QK kernel implementation

Definition in file qk.cpp.

Function Documentation

QK_sched_()

std::uint_fast8_t QK_sched_ ( )

noexcept

QK scheduler finds the highest-priority AO ready to run

Details

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 QF-priority of the next active object to activate, or zero if no activation of AO is needed.

Precondition qk:400

• check the internal integrity (duplicate inverse storage)

Attention

QK_sched_() must be always called with interrupts disabled and returns with interrupts disabled. QK_sched_() is defined with the "C" linkage (extern "C").

Definition at line 152 of file qk.cpp.

QK_activate_()

void QK_activate_ ( )

noexcept

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

Details

QK_activate_() activates ready-to run AOs that are above the initial preemption-threshold.

Precondition qk:500

• QK_attr_.actPrio and QK_attr_.nextPrio must be in range

Attention

QK_activate_() must be always called with interrupts disabled and returns with interrupts disabled. QK_activate_() is defined with the "C" linkage (extern "C")

Definition at line 197 of file qk.cpp.

Variable Documentation

QK_priv_

QK_Attr QK_priv_

Definition at line 149 of file qk.cpp.