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/* $OpenBSD: kern_fthread.c,v 1.2 2001/05/06 01:23:37 art Exp $ */
/* $NetBSD: kern_fthread.c,v 1.3 1998/02/07 16:23:35 chs Exp $ */
/*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* The Mach Operating System project at Carnegie-Mellon University.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)kern_lock.c 8.1 (Berkeley) 6/11/93
*
*
* Copyright (c) 1987, 1990 Carnegie-Mellon University.
* All rights reserved.
*
* Authors: Avadis Tevanian, Jr., Michael Wayne Young
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Locking primitives implementation
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <vm/vm.h>
/*
* these routines fake thread handling
*/
#if !defined(UVM)
void
assert_wait(event, ruptible)
void *event;
boolean_t ruptible;
{
#ifdef lint
ruptible++;
#endif
curproc->p_thread = event;
}
void
thread_block(msg)
char *msg;
{
int s = splhigh();
if (curproc->p_thread)
tsleep(curproc->p_thread, PVM, msg, 0);
splx(s);
}
#endif
void
thread_sleep_msg(event, lock, ruptible, msg, timo)
void *event;
simple_lock_t lock;
boolean_t ruptible;
char *msg;
int timo;
{
int s = splhigh();
#ifdef lint
ruptible++;
#endif
curproc->p_thread = event;
simple_unlock(lock);
if (curproc->p_thread)
tsleep(event, PVM, msg, timo);
splx(s);
}
#if !defined(UVM)
/*
* DEBUG stuff
*/
int indent = 0;
/*
* Note that stdarg.h and the ANSI style va_start macro is used for both
* ANSI and traditional C compilers. (Same as subr_prf.c does.)
* XXX: This requires that stdarg.h defines: va_alist, va_dcl
*/
#include <machine/stdarg.h>
/*ARGSUSED2*/
void
#ifdef __STDC__
iprintf(int (*pr)(const char *, ...), const char *fmt, ...)
#else
iprintf(pr, fmt, va_alist)
void (*pr)();
const char *fmt;
va_dcl
#endif
{
register int i;
va_list ap;
va_start(ap, fmt);
for (i = indent; i >= 8; i -= 8)
(*pr)("\t");
while (--i >= 0)
(*pr)(" ");
#ifdef __powerpc__ /* XXX */
if (pr != printf) /* XXX */
panic("iprintf"); /* XXX */
vprintf(fmt, ap); /* XXX */
#else /* XXX */
(*pr)("%:", fmt, ap); /* XXX */
#endif /* __powerpc__ */ /* XXX */
va_end(ap);
}
#endif
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