eventobj.h

/*
 * Copyright (C) 2012 Philippe Gerum <rpm@xenomai.org>.
 *
 * 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.
 */
 
#ifndef _COPPERPLATE_EVENTOBJ_H
#define _COPPERPLATE_EVENTOBJ_H
 
#include <boilerplate/compiler.h>
#include <copperplate/reference.h>
 
struct eventobj_waitentry {
        pid_t pid;
        char name[32];
};
 
#ifdef CONFIG_XENO_COBALT
 
#include <cobalt/uapi/event.h>
 
struct eventobj_corespec {
        cobalt_event_t event;
};
 
struct eventobj_wait_struct {
};
 
#define EVOBJ_FIFO  COBALT_EVENT_FIFO
#define EVOBJ_PRIO  COBALT_EVENT_PRIO
 
#define EVOBJ_ALL   COBALT_EVENT_ALL
#define EVOBJ_ANY   COBALT_EVENT_ANY
 
#else  /* CONFIG_XENO_MERCURY */
 
#include <copperplate/syncobj.h>
 
struct eventobj_corespec {
        struct syncobj sobj;
        unsigned int value;
        int flags;
};
 
struct eventobj_wait_struct {
        unsigned int value;
        int mode;
};
 
#define EVOBJ_FIFO  0x0
#define EVOBJ_PRIO  0x1
 
#define EVOBJ_ALL   0x0
#define EVOBJ_ANY   0x1
 
#endif /* CONFIG_XENO_MERCURY */
 
struct eventobj {
        struct eventobj_corespec core;
        fnref_type(void (*)(struct eventobj *evobj)) finalizer;
};
 
#ifdef __cplusplus
extern "C" {
#endif
 
int eventobj_init(struct eventobj *evobj,
                  unsigned int value, int flags,
                  fnref_type(void (*)(struct eventobj *evobj)) finalizer) __must_check;
 
int eventobj_destroy(struct eventobj *evobj);
 
void eventobj_uninit(struct eventobj *evobj);
  
int eventobj_post(struct eventobj *evobj,
                  unsigned int bits);
 
int eventobj_wait(struct eventobj *evobj,
                  unsigned int bits,
                  unsigned int *bits_r,
                  int mode,
                  const struct timespec *timeout) __must_check;
 
int eventobj_clear(struct eventobj *evobj,
                   unsigned int bits,
                   unsigned int *bits_r);
 
int eventobj_inquire(struct eventobj *evobj, size_t waitsz,
                     struct eventobj_waitentry *waitlist,
                     unsigned int *bits_r);
 
#ifdef __cplusplus
}
#endif
 
#endif /* _COPPERPLATE_EVENTOBJ_H */