/*
* Copyright (c) 2009 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup generic
* @{
*/
/** @file
*/
#ifndef KERN_EVENT_H_
#define KERN_EVENT_H_
#include <ipc/event_types.h>
#include <arch/types.h>
#include <synch/spinlock.h>
#include <ipc/ipc.h>
/** Event notification structure. */
typedef struct {
SPINLOCK_DECLARE(lock);
/** Answerbox for notifications. */
answerbox_t *answerbox;
/** Method to be used for the notification. */
unative_t method;
/** Counter. */
size_t counter;
} event_t;
extern void event_init(void);
extern unative_t sys_event_subscribe(unative_t, unative_t);
extern bool event_is_subscribed(event_type_t);
extern void event_cleanup_answerbox(answerbox_t *);
#define event_notify_0(e) \
event_notify((e), 0, 0, 0, 0, 0)
#define event_notify_1(e, a1) \
event_notify((e), (a1), 0, 0, 0, 0)
#define event_notify_2(e, a1, a2) \
event_notify((e), (a1), (a2), 0, 0, 0)
#define event_notify_3(e, a1, a2, a3) \
event_notify((e), (a1), (a2), (a3), 0, 0)
#define event_notify_4(e, a1, a2, a3, a4) \
event_notify((e), (a1), (a2), (a3), (a4), 0)
#define event_notify_5(e, a1, a2, a3, a4, a5) \
event_notify((e), (a1), (a2), (a3), (a4), (a5))
extern void event_notify(event_type_t, unative_t, unative_t, unative_t,
unative_t, unative_t);
#endif
/** @}
*/