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author | jb <jb@FreeBSD.org> | 2008-04-25 09:07:28 +0000 |
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committer | jb <jb@FreeBSD.org> | 2008-04-25 09:07:28 +0000 |
commit | ce71c4333f4e7b75db9902ddea203b1083ad4561 (patch) | |
tree | 759de4e92b645ce6ce4bba19feb1e8ab20798cfc /cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h | |
parent | e01c5b125247b0d4bd1f054886d3956ae4bb63cf (diff) | |
download | FreeBSD-src-ce71c4333f4e7b75db9902ddea203b1083ad4561.zip FreeBSD-src-ce71c4333f4e7b75db9902ddea203b1083ad4561.tar.gz |
Vendor import of the CTF (Compact C Type Format) code used by DTrace
from OpenSolaris.
Diffstat (limited to 'cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h')
-rw-r--r-- | cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h b/cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h new file mode 100644 index 0000000..c7e6212 --- /dev/null +++ b/cddl/contrib/opensolaris/tools/ctf/cvt/barrier.h @@ -0,0 +1,62 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2002 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _BARRIER_H +#define _BARRIER_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * APIs for the barrier synchronization primitive. + */ + +#if defined(sun) +#include <synch.h> +#else +#include <semaphore.h> +typedef sem_t sema_t; +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct barrier { + pthread_mutex_t bar_lock; /* protects bar_numin */ + int bar_numin; /* current number of waiters */ + + sema_t bar_sem; /* where everyone waits */ + int bar_nthr; /* # of waiters to trigger release */ +} barrier_t; + +extern void barrier_init(barrier_t *, int); +extern int barrier_wait(barrier_t *); + +#ifdef __cplusplus +} +#endif + +#endif /* _BARRIER_H */ |