11be35a165
To do so, a few dependencies have been imported: * external/bsd/lutok * external/mit/lua * external/public-domain/sqlite * external/public-domain/xz The Kyua framework is the new generation of ATF (Automated Test Framework), it is composed of: * external/bsd/atf * external/bsd/kyua-atf-compat * external/bsd/kyua-cli * external/bsd/kyua-tester * tests Kyua/ATF being written in C++, it depends on libstdc++ which is provided by GCC. As this is not part of the sources, Kyua is only compiled when the native GCC utils are installed. To install Kyua do the following: * In a cross-build enviromnent, add the following to the build.sh commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes WARNING: At this point the import is still experimental, and not supported on native builds (a.k.a make build). Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/* $NetBSD: alloc.c,v 1.1 2010/06/14 21:06:09 pooka Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* 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 NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF 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: alloc.c,v 1.1 2010/06/14 21:06:09 pooka Exp $");
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#endif /* !lint */
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#include <sys/param.h>
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#include <sys/condvar.h>
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#include <sys/kmem.h>
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#include <sys/kthread.h>
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#include <sys/mutex.h>
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#include <sys/pool.h>
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#include <sys/proc.h>
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#include <uvm/uvm.h>
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#include <rump/rumpuser.h>
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#include "kernspace.h"
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static void *store[32];
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static struct pool pp1, pp2;
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static kmutex_t mtx;
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static kcondvar_t kcv;
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static int curstat;
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static void
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hthr(void *arg)
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{
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int i;
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mutex_enter(&mtx);
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curstat++;
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cv_signal(&kcv);
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while (curstat < 2)
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cv_wait(&kcv, &mtx);
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mutex_exit(&mtx);
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/* try to guarantee that the sleep is triggered in PR_WAITOK */
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while ((kernel_map->flags & VM_MAP_WANTVA) == 0)
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kpause("take5", false, 1, NULL);
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for (i = 0; i < __arraycount(store); i++) {
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pool_put(&pp1, store[i]);
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}
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kthread_exit(0);
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}
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void
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rumptest_alloc(size_t thelimit)
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{
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char *c;
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int succ, i;
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mutex_init(&mtx, MUTEX_DEFAULT, IPL_NONE);
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cv_init(&kcv, "venailu");
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kthread_create(PRI_NONE, KTHREAD_MPSAFE, NULL, hthr, NULL, NULL, "h");
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pool_init(&pp1, 1024, 0, 0, 0, "vara-allas",
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&pool_allocator_nointr, IPL_NONE);
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pool_init(&pp2, 1024, 0, 0, 0, "allas",
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&pool_allocator_nointr, IPL_NONE);
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for (i = 0; i < __arraycount(store); i++) {
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store[i] = pool_get(&pp1, PR_NOWAIT);
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if (store[i] == NULL) {
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panic("pool_get store failed");
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}
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}
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/* wait until other thread runs */
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mutex_enter(&mtx);
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while (curstat == 0)
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cv_wait(&kcv, &mtx);
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mutex_exit(&mtx);
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for (succ = 0;; succ++) {
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if (succ * 1024 > thelimit)
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panic("managed to allocate over limit");
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if ((c = pool_get(&pp2, PR_NOWAIT)) == NULL) {
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mutex_enter(&mtx);
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curstat++;
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cv_signal(&kcv);
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mutex_exit(&mtx);
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if (pool_get(&pp2, PR_WAITOK) == NULL)
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panic("pool get PR_WAITOK failed");
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break;
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}
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*c = 'a';
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}
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}
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