/*
|
* Copyright (C) 2013 Philippe Gerum <rpm@xenomai.org>.
|
*
|
* This program 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.
|
*
|
* This program 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 this program; if not, write to the Free Software
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
*/
|
#ifndef _COBALT_POSIX_EXTENSION_H
|
#define _COBALT_POSIX_EXTENSION_H
|
|
#include <linux/time.h>
|
#include <linux/list.h>
|
|
#ifdef CONFIG_XENO_OPT_COBALT_EXTENSION
|
|
#include <cobalt/kernel/thread.h>
|
|
struct cobalt_timer;
|
struct cobalt_sigpending;
|
struct cobalt_extref;
|
struct siginfo;
|
struct xnsched_class;
|
union xnsched_policy_param;
|
|
struct cobalt_extension {
|
struct xnthread_personality core;
|
struct {
|
struct cobalt_thread *
|
(*timer_init)(struct cobalt_extref *reftimer, /* nklocked, IRQs off. */
|
const struct sigevent *__restrict__ evp);
|
int (*timer_settime)(struct cobalt_extref *reftimer, /* nklocked, IRQs off. */
|
const struct itimerspec64 *__restrict__ value,
|
int flags);
|
int (*timer_gettime)(struct cobalt_extref *reftimer, /* nklocked, IRQs off. */
|
struct itimerspec64 *__restrict__ value);
|
int (*timer_delete)(struct cobalt_extref *reftimer); /* nklocked, IRQs off. */
|
int (*timer_cleanup)(struct cobalt_extref *reftimer); /* nklocked, IRQs off. */
|
int (*signal_deliver)(struct cobalt_extref *refthread,
|
struct siginfo *si,
|
struct cobalt_sigpending *sigp);
|
int (*signal_queue)(struct cobalt_extref *refthread,
|
struct cobalt_sigpending *sigp);
|
int (*signal_copyinfo)(struct cobalt_extref *refthread,
|
void __user *u_si,
|
const struct siginfo *si,
|
int overrun);
|
int (*signal_copyinfo_compat)(struct cobalt_extref *refthread,
|
void __user *u_si,
|
const struct siginfo *si,
|
int overrun);
|
int (*sched_yield)(struct cobalt_extref *curref);
|
int (*thread_setsched)(struct cobalt_extref *refthread, /* nklocked, IRQs off. */
|
struct xnsched_class *sched_class,
|
union xnsched_policy_param *param);
|
} ops;
|
};
|
|
struct cobalt_extref {
|
struct cobalt_extension *extension;
|
struct list_head next;
|
void *private;
|
};
|
|
static inline void cobalt_set_extref(struct cobalt_extref *ref,
|
struct cobalt_extension *ext,
|
void *priv)
|
{
|
ref->extension = ext;
|
ref->private = priv;
|
}
|
|
/**
|
* All macros return non-zero if some thread-level extension code was
|
* called, leaving the output value into __ret. Otherwise, the __ret
|
* value is undefined.
|
*/
|
#define cobalt_initcall_extension(__extfn, __extref, __owner, __ret, __args...) \
|
({ \
|
int __val = 0; \
|
if ((__owner) && (__owner)->extref.extension) { \
|
(__extref)->extension = (__owner)->extref.extension; \
|
if ((__extref)->extension->ops.__extfn) { \
|
(__ret) = (__extref)->extension->ops. \
|
__extfn(__extref, ##__args ); \
|
__val = 1; \
|
} \
|
} else \
|
(__extref)->extension = NULL; \
|
__val; \
|
})
|
|
#define cobalt_call_extension(__extfn, __extref, __ret, __args...) \
|
({ \
|
int __val = 0; \
|
if ((__extref)->extension && \
|
(__extref)->extension->ops.__extfn) { \
|
(__ret) = (__extref)->extension->ops. \
|
__extfn(__extref, ##__args ); \
|
__val = 1; \
|
} \
|
__val; \
|
})
|
|
#else /* !CONFIG_XENO_OPT_COBALT_EXTENSION */
|
|
struct cobalt_extension;
|
|
struct cobalt_extref {
|
};
|
|
static inline void cobalt_set_extref(struct cobalt_extref *ref,
|
struct cobalt_extension *ext,
|
void *priv)
|
{
|
}
|
|
#define cobalt_initcall_extension(__extfn, __extref, __owner, __ret, __args...) \
|
({ (void)(__owner); (void)(__ret); 0; })
|
|
#define cobalt_call_extension(__extfn, __extref, __ret, __args...) \
|
({ (void)(__ret); 0; })
|
|
#endif /* !CONFIG_XENO_OPT_COBALT_EXTENSION */
|
|
#endif /* !_COBALT_POSIX_EXTENSION_H */
|
