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/*
* Copyright (C) 2001,2002,2003 Philippe Gerum <rpm@xenomai.org>.
*
* Xenomai is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Xenomai is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* As a special exception, the RTAI project gives permission
* for additional uses of the text contained in its release of
* Xenomai.
*
* The exception is that, if you link the Xenomai libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Xenomai libraries code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public
* License.
*
* This exception applies only to the code released by the
* RTAI project under the name Xenomai. If you copy code from other
* RTAI project releases into a copy of Xenomai, as the General Public
* License permits, the exception does not apply to the code that you
* add in this way. To avoid misleading anyone as to the status of
* such modified files, you must delete this exception notice from
* them.
*
* If you write modifications of your own for Xenomai, it is your
* choice whether to permit this exception to apply to your
* modifications. If you do not wish that, delete this exception
* notice.
*/
#include "rtai_config.h"
#include "xenomai/pod.h"
#include "xenomai/synch.h"
#include "xenomai/heap.h"
#include "xenomai/mutex.h"
#include "xenomai/thread.h"
#include "xenomai/module.h"
static void xnthread_timeout_handler (void *cookie)
{
xnthread_t *thread = (xnthread_t *)cookie;
setbits(thread->status,XNTIMEO);
xnpod_resume_thread(thread,XNDELAY);
}
int xnthread_init (xnthread_t *thread,
const char *name,
int prio,
xnflags_t flags,
unsigned stacksize,
void *adcookie,
unsigned magic)
{
xntimer_init(&thread->timer,&xnthread_timeout_handler,thread);
xntimer_init(&thread->atimer,NULL,NULL);
/* Align stack on a word boundary */
stacksize &= ~(sizeof(int) - 1);
if (stacksize > 0)
{
thread->tcb.stackbase = (unsigned long *)xnmalloc(stacksize);
if (!thread->tcb.stackbase)
return XNERR_NOMEM;
}
else
thread->tcb.stackbase = NULL;
thread->tcb.stacksize = stacksize;
thread->status = flags;
thread->signals = 0;
thread->asrmode = 0;
thread->asrimask = 0;
thread->asr = XNTHREAD_INVALID_ASR;
thread->asrlevel = 0;
thread->iprio = prio;
thread->bprio = prio;
thread->cprio = prio;
thread->rrperiod = XN_INFINITE;
thread->rrcredit = XN_INFINITE;
thread->wchan = NULL;
thread->magic = magic;
/* These will be filled by xnpod_start_thread() */
thread->imask = 0;
thread->imode = 0;
thread->entry = NULL;
thread->cookie = 0;
thread->stime = 0;
thread->extinfo = NULL;
thread->adcookie = adcookie;
if (name)
{
const char *rp = name;
char *wp = thread->name;
do
*wp++ = *rp;
while (*rp && rp++ - name < XNOBJECT_NAME_LEN);
}
else
*thread->name = '\0';
inith(&thread->glink);
inith(&thread->slink);
initph(&thread->rlink);
initph(&thread->plink);
initpq(&thread->claimq,xnpod_get_qdir(nkpod));
thread->sched = &nkpod->sched;
xnarch_init_display_context(thread);
return XN_OK;
}
void xnthread_cleanup_tcb (xnthread_t *thread)
{
xnarchtcb_t *tcb = xnthread_archtcb(thread);
/* Does not wreck the TCB, only releases the held resources. */
if (tcb->stackbase)
xnfree(tcb->stackbase);
thread->magic = 0;
}
EXPORT_SYMBOL(xnthread_init);
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