141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/* $NetBSD: kern_fthread.c,v 1.4 1999/03/24 05:51:23 mrg Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* The Mach Operating System project at Carnegie-Mellon University.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)kern_lock.c 8.1 (Berkeley) 6/11/93
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*
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*
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* Copyright (c) 1987, 1990 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Authors: Avadis Tevanian, Jr., Michael Wayne Young
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Locking primitives implementation
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <vm/vm.h>
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/*
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* these routines fake thread handling
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*/
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void
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thread_sleep_msg(event, lock, ruptible, msg, timo)
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void *event;
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simple_lock_t lock;
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boolean_t ruptible;
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char *msg;
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int timo;
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{
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int s = splhigh();
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#ifdef lint
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ruptible++;
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#endif
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curproc->p_thread = event;
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simple_unlock(lock);
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if (curproc->p_thread)
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tsleep(event, PVM, msg, timo);
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splx(s);
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}
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/*
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* DEBUG stuff
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*/
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int indent = 0;
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/*
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* Note that stdarg.h and the ANSI style va_start macro is used for both
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* ANSI and traditional C compilers. (Same as subr_prf.c does.)
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* XXX: This requires that stdarg.h defines: va_alist, va_dcl
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*/
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#include <machine/stdarg.h>
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/*ARGSUSED2*/
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void
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#ifdef __STDC__
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iprintf(void (*pr)(const char *, ...), const char *fmt, ...)
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#else
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iprintf(pr, fmt, va_alist)
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void (*pr)();
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const char *fmt;
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va_dcl
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#endif
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{
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register int i;
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va_list ap;
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va_start(ap, fmt);
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for (i = indent; i >= 8; i -= 8)
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(*pr)("\t");
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while (--i >= 0)
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(*pr)(" ");
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#ifdef __powerpc__ /* XXX */
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if (pr != printf) /* XXX */
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panic("iprintf"); /* XXX */
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vprintf(fmt, ap); /* XXX */
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#else /* XXX */
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(*pr)("%:", fmt, ap); /* XXX */
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#endif /* __powerpc__ */ /* XXX */
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va_end(ap);
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}
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