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implement mutex_owner()

This commit is contained in:
pooka 2012-11-02 16:55:02 +00:00
parent efb508ca11
commit 2c32a204a7
1 changed files with 16 additions and 4 deletions
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20
lib/librumpuser/rumpuser_pth_dummy.c
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@ -1,4 +1,4 @@
/* $NetBSD: rumpuser_pth_dummy.c,v 1.4 2012/11/02 13:31:26 pooka Exp $ */
/* $NetBSD: rumpuser_pth_dummy.c,v 1.5 2012/11/02 16:55:02 pooka Exp $ */
/*
* Copyright (c) 2009 Antti Kantee. All Rights Reserved.
@ -29,7 +29,7 @@
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: rumpuser_pth_dummy.c,v 1.4 2012/11/02 13:31:26 pooka Exp $");
__RCSID("$NetBSD: rumpuser_pth_dummy.c,v 1.5 2012/11/02 16:55:02 pooka Exp $");
#endif /* !lint */
#include <sys/time.h>
@ -45,10 +45,13 @@ __RCSID("$NetBSD: rumpuser_pth_dummy.c,v 1.4 2012/11/02 13:31:26 pooka Exp $");
#include "rumpuser_int.h"
static struct lwp *curlwp;
struct rumpuser_cv {};
struct rumpuser_mtx {
int v;
struct lwp *o;
};
struct rumpuser_rw {
@ -116,6 +119,7 @@ rumpuser_mutex_enter(struct rumpuser_mtx *mtx)
{
mtx->v++;
mtx->o = curlwp;
}
int
@ -130,7 +134,9 @@ void
rumpuser_mutex_exit(struct rumpuser_mtx *mtx)
{
mtx->v--;
assert(mtx->v > 0);
if (--mtx->v == 0)
mtx->o = NULL;
}
void
@ -140,6 +146,13 @@ rumpuser_mutex_destroy(struct rumpuser_mtx *mtx)
free(mtx);
}
struct lwp *
rumpuser_mutex_owner(struct rumpuser_mtx *mtx)
{
return mtx->o;
}
void
rumpuser_rw_init(struct rumpuser_rw **rw)
{
@ -271,7 +284,6 @@ rumpuser_cv_has_waiters(struct rumpuser_cv *cv)
* curlwp
*/
static struct lwp *curlwp;
void
rumpuser_set_curlwp(struct lwp *l)
{