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tm.h File Reference

task management interna. More...

Functions

void tm_init (void)
init task management. More...
void tm_start (void)
start task management. More...
void tm_switcher (void)
the task switcher. More...
size_t* tm_scheduler (size_t *old_sp)
the process scheduler. More...
int tm_idle_task (void)
the idle task. More...

Detailed Description

task management interna.

Author(s):: Markus L. Noga <noga@inrialpes.fr>

Function Documentation

void tm_init (void)

init task management.

called in single tasking mode before task setup.

void tm_start (void)

start task management.

called in single tasking mode after task setup

void tm_switcher (void)

the task switcher.

saves active context and passes sp to scheduler then restores new context from returned sp

size_t * tm_scheduler (size_t * old_sp)

the process scheduler.

Parameters:: old_sp - current task's current stack pointer

Returns:: new task's current stack pointer

actual context switches performed by tm_switcher (assembler wrapper)

int tm_idle_task (void)

the idle task.

infinite sleep instruction to conserve power.

-0.1.7 is released under Mozilla Public License. Original code © 1998-1999 by Markus L. Noga.