rt_task_make_periodic(2) rt_task_make_periodic(2)
NAME
rt_task_make_periodic -- mark a realtime task for execution.
SYNOPSIS
WARNING --
This is an RTLinux v1.x compatibility function.
For new programs, please see pthread_make_periodic_np(3).
#define MODULE
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/errno.h>
#include <linux/rtf.h>
#include <asm/rt_irq.h>
int rt_task_make_periodic(RT_TASK *task, RTIME start_time, RTIME period);
WARNING
This is an RTLinux v1.x compatibility function. For new programs,
please see pthread_make_periodic_np(3).
DESCRIPTION
rt_task_make_periodic marks a task, previously created with a call to
rt_task_init, as ready for execution. The task will run at intervals
specified by period; i.e., it will be marked for execution every period
realtime clock ticks. The desired start time is specified by
start_time; the first execution of the task will occur start_time clock
ticks from the current time. If immediate execution is desired, the
return value of rt_get_time can be used for start_time.
RETURN VALUE
On success, 0 is returned. On failure, a negative value is returned
as described below.
ERRORS
-EINVAL task does not refer to a valid RT_TASK structure.
AUTHOR
Jerry Epplin, modified by Michael Barabanov (baraban@fsmlabs.com (link
to URL mailto:baraban@fsmlabs.com) )
SEE ALSO
rt_get_time(3) (link to URL rt_get_time.3.html) , rt_task_delete(3)
(link to URL rt_task_delete.3.html) , rt_task_init(3) (link to URL
rt_task_init.3.html) , rt_task_suspend(3) (link to URL rt_task_sus-
pend.3.html) , rt_task_wait(3) (link to URL rt_task_wait.3.html) ,
pthread_make_periodic_np(3) (link to URL pthread_make_peri-
odic_np.3.html)
(C)1997 Jerry Epplin.
Modifications for RTLinux 2.x and 3.x by Michael Barabanov. (C)2001
FSMLabs Inc.
All rights reserved.
rt_task_make_periodic(2)
