297 lines
4.7 KiB
C
297 lines
4.7 KiB
C
/* $NetBSD: rumpuser_pth_dummy.c,v 1.1 2010/02/26 18:54:20 pooka Exp $ */
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/*
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* Copyright (c) 2009 Antti Kantee. All Rights Reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 OR
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* 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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#include <sys/cdefs.h>
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#if !defined(lint)
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__RCSID("$NetBSD: rumpuser_pth_dummy.c,v 1.1 2010/02/26 18:54:20 pooka Exp $");
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#endif /* !lint */
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#include <sys/time.h>
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#include <assert.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <rump/rumpuser.h>
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#include "rumpuser_int.h"
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struct rumpuser_cv {};
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struct rumpuser_mtx {
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int v;
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};
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struct rumpuser_rw {
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int v;
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};
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struct rumpuser_mtx rumpuser_aio_mtx;
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struct rumpuser_cv rumpuser_aio_cv;
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int rumpuser_aio_head, rumpuser_aio_tail;
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struct rumpuser_aio rumpuser_aios[N_AIOS];
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void donada(int);
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/*ARGSUSED*/
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void donada(int arg) {}
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void dounnada(int, int *);
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/*ARGSUSED*/
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void dounnada(int arg, int *ap) {}
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kernel_lockfn rumpuser__klock = donada;
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kernel_unlockfn rumpuser__kunlock = dounnada;
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/*ARGSUSED*/
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void
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rumpuser_thrinit(kernel_lockfn lockfn, kernel_unlockfn unlockfn, int threads)
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{
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}
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/*ARGSUSED*/
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void
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rumpuser_biothread(void *arg)
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{
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fprintf(stderr, "rumpuser: threads not available\n");
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abort();
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}
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/*ARGSUSED*/
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int
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rumpuser_thread_create(void *(*f)(void *), void *arg, const char *thrname)
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{
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fprintf(stderr, "rumpuser: threads not available\n");
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abort();
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return 0;
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}
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void
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rumpuser_thread_exit(void)
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{
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}
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void
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rumpuser_mutex_init(struct rumpuser_mtx **mtx)
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{
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*mtx = calloc(1, sizeof(struct rumpuser_mtx));
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}
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void
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rumpuser_mutex_recursive_init(struct rumpuser_mtx **mtx)
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{
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rumpuser_mutex_init(mtx);
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}
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void
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rumpuser_mutex_enter(struct rumpuser_mtx *mtx)
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{
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mtx->v++;
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}
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int
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rumpuser_mutex_tryenter(struct rumpuser_mtx *mtx)
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{
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mtx->v++;
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return 1;
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}
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void
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rumpuser_mutex_exit(struct rumpuser_mtx *mtx)
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{
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mtx->v--;
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}
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void
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rumpuser_mutex_destroy(struct rumpuser_mtx *mtx)
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{
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free(mtx);
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}
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int
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rumpuser_mutex_held(struct rumpuser_mtx *mtx)
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{
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return mtx->v;
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}
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void
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rumpuser_rw_init(struct rumpuser_rw **rw)
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{
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*rw = calloc(1, sizeof(struct rumpuser_rw));
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}
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void
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rumpuser_rw_enter(struct rumpuser_rw *rw, int write)
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{
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if (write) {
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rw->v++;
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assert(rw->v == 1);
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} else {
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assert(rw->v <= 0);
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rw->v--;
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}
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}
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int
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rumpuser_rw_tryenter(struct rumpuser_rw *rw, int write)
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{
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rumpuser_rw_enter(rw, write);
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return 1;
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}
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void
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rumpuser_rw_exit(struct rumpuser_rw *rw)
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{
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if (rw->v > 0) {
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assert(rw->v == 1);
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rw->v--;
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} else {
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rw->v++;
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}
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}
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void
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rumpuser_rw_destroy(struct rumpuser_rw *rw)
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{
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free(rw);
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}
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int
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rumpuser_rw_held(struct rumpuser_rw *rw)
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{
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return rw->v != 0;
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}
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int
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rumpuser_rw_rdheld(struct rumpuser_rw *rw)
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{
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return rw->v < 0;
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}
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int
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rumpuser_rw_wrheld(struct rumpuser_rw *rw)
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{
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return rw->v > 0;
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}
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/*ARGSUSED*/
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void
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rumpuser_cv_init(struct rumpuser_cv **cv)
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{
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}
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/*ARGSUSED*/
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void
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rumpuser_cv_destroy(struct rumpuser_cv *cv)
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{
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}
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/*ARGSUSED*/
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void
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rumpuser_cv_wait(struct rumpuser_cv *cv, struct rumpuser_mtx *mtx)
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{
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}
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/*ARGSUSED*/
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int
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rumpuser_cv_timedwait(struct rumpuser_cv *cv, struct rumpuser_mtx *mtx,
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int64_t sec, int64_t nsec)
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{
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struct timespec ts;
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/*LINTED*/
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ts.tv_sec = sec;
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/*LINTED*/
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ts.tv_nsec = nsec;
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nanosleep(&ts, NULL);
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return 0;
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}
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/*ARGSUSED*/
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void
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rumpuser_cv_signal(struct rumpuser_cv *cv)
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{
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}
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/*ARGSUSED*/
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void
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rumpuser_cv_broadcast(struct rumpuser_cv *cv)
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{
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}
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/*ARGSUSED*/
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int
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rumpuser_cv_has_waiters(struct rumpuser_cv *cv)
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{
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return 0;
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}
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/*
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* curlwp
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*/
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static struct lwp *curlwp;
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void
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rumpuser_set_curlwp(struct lwp *l)
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{
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curlwp = l;
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}
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struct lwp *
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rumpuser_get_curlwp(void)
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{
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return curlwp;
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}
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