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/*
* Copyright (c) 2006 Ondrej Palkovsky
* 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 libc
* @{
*/
/** @file
*/
#ifndef LIBC_PRIVATE_ASYNC_H_
#define LIBC_PRIVATE_ASYNC_H_
#include <async.h>
#include <adt/list.h>
#include <fibril.h>
#include <fibril_synch.h>
#include <sys/time.h>
#include <bool.h>
/** Structures of this type are used to track the timeout events. */
typedef struct {
/** If true, this struct is in the timeout list. */
bool inlist;
/** Timeout list link. */
link_t link;
/** If true, we have timed out. */
bool occurred;
/** Expiration time. */
struct timeval expires;
} to_event_t;
/** Structures of this type are used to track the wakeup events. */
typedef struct {
/** If true, this struct is in a synchronization object wait queue. */
bool inlist;
/** Wait queue linkage. */
link_t link;
} wu_event_t;
/** Structures of this type represent a waiting fibril. */
typedef struct {
/** Identification of and link to the waiting fibril. */
fid_t fid;
/** If true, this fibril is currently active. */
bool active;
/** Timeout wait data. */
to_event_t to_event;
/** Wakeup wait data. */
wu_event_t wu_event;
} awaiter_t;
extern void awaiter_initialize(awaiter_t *);
extern void __async_init(void);
extern void async_insert_timeout(awaiter_t *);
extern void reply_received(void *, int, ipc_call_t *);
#endif
/** @}
*/
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