minix/tests/rump/kernspace/busypage.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
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
2013-07-23 20:43:41 +02:00

94 lines
2.7 KiB
C

/* $NetBSD: busypage.c,v 1.5 2011/08/07 14:03:15 rmind Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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.
*/
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: busypage.c,v 1.5 2011/08/07 14:03:15 rmind Exp $");
#endif /* !lint */
#include <sys/param.h>
#include <sys/condvar.h>
#include <sys/kthread.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <uvm/uvm.h>
#include "kernspace.h"
static struct uvm_object *uobj;
static struct vm_page *testpg;
static kcondvar_t tcv;
static bool threadrun = false;
static void
thread(void *arg)
{
mutex_enter(uobj->vmobjlock);
threadrun = true;
cv_signal(&tcv);
testpg->flags |= PG_WANTED;
UVM_UNLOCK_AND_WAIT(testpg, uobj->vmobjlock, false, "tw", 0);
kthread_exit(0);
}
void
rumptest_busypage()
{
struct lwp *newl;
int rv;
cv_init(&tcv, "napina");
uobj = uao_create(1, 0);
mutex_enter(uobj->vmobjlock);
testpg = uvm_pagealloc(uobj, 0, NULL, 0);
mutex_exit(uobj->vmobjlock);
if (testpg == NULL)
panic("couldn't create vm page");
rv = kthread_create(PRI_NONE, KTHREAD_MUSTJOIN | KTHREAD_MPSAFE, NULL,
thread, NULL, &newl, "jointest");
if (rv)
panic("thread creation failed: %d", rv);
mutex_enter(uobj->vmobjlock);
while (!threadrun)
cv_wait(&tcv, uobj->vmobjlock);
uvm_page_unbusy(&testpg, 1);
mutex_exit(uobj->vmobjlock);
rv = kthread_join(newl);
if (rv)
panic("thread join failed: %d", rv);
}