minix/sys/sys/condvar.h
Evgeniy Ivanov 7f2d47d84c Remove libkern, leave just header.
Boot stuff dependencies from NetBSD.

Patch by Antoine Leca. Relocated to src/sys.

The port is using the same libminc.a as usual MINIX services (and does
not use NetBSD libkern); the headers imported from NetBSD sys/ tree
have been kept to a minimum (still numbers higher than 30 though.)

Note the peculiar way to use libraries (libsa, libi386, etc.): the
source code is shared, but each component builds its own copy of the
library, with its own set of preprocessor defines.
2012-02-09 18:54:42 +01:00

63 lines
2.2 KiB
C

/* $NetBSD: condvar.h,v 1.12 2009/12/05 22:38:19 pooka Exp $ */
/*-
* Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Doran.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
#ifndef _SYS_CONDVAR_H_
#define _SYS_CONDVAR_H_
#include <sys/mutex.h>
typedef struct kcondvar {
void *cv_opaque[3];
} kcondvar_t;
#ifdef _KERNEL
void cv_init(kcondvar_t *, const char *);
void cv_destroy(kcondvar_t *);
void cv_wait(kcondvar_t *, kmutex_t *);
int cv_wait_sig(kcondvar_t *, kmutex_t *);
int cv_timedwait(kcondvar_t *, kmutex_t *, int);
int cv_timedwait_sig(kcondvar_t *, kmutex_t *, int);
void cv_signal(kcondvar_t *);
void cv_broadcast(kcondvar_t *);
bool cv_has_waiters(kcondvar_t *);
bool cv_is_valid(kcondvar_t *);
/* The "lightning bolt", awoken once per second by the clock interrupt. */
extern kcondvar_t lbolt;
#endif /* _KERNEL */
#endif /* _SYS_CONDVAR_H_ */