interrupt.c

xenomai 很好的linux实时补丁

/*
 * Copyright (C) 2005 Philippe Gerum <[e-mail]>.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */

#include <errno.h>
#include <posix/syscall.h>
#include <pthread.h>

extern int __pse51_muxid;

int pthread_intr_attach_np (pthread_intr_t *intr,
			    unsigned irq,
			    int mode)
{
    int err;

    err = -XENOMAI_SKINCALL3(__pse51_muxid,
			     __pse51_intr_attach,
			     intr,
			     irq,
			     mode);
    if (!err)
	return 0;

    errno = err;

    return -1;
}

int pthread_intr_detach_np (pthread_intr_t intr)

{
    int err;

    err = -XENOMAI_SKINCALL1(__pse51_muxid,
			     __pse51_intr_detach,
			     intr);
    if (!err)
	return 0;

    errno = err;

    return -1;
}

int pthread_intr_wait_np (pthread_intr_t intr,
			  const struct timespec *to)
{
    int err;

    err = XENOMAI_SKINCALL2(__pse51_muxid,
			    __pse51_intr_wait,
			    intr,
			    to);
    if (err > 0)
	return err;

    errno = -err;

    return -1;
}

int pthread_intr_control_np (pthread_intr_t intr,
			     int cmd)
{
    int err;

    err = -XENOMAI_SKINCALL2(__pse51_muxid,
			     __pse51_intr_control,
			     intr,
			     cmd);
    if (!err)
	return 0;

    errno = err;

    return -1;
}