11673e404SJohn Birrell /* 21673e404SJohn Birrell * CDDL HEADER START 31673e404SJohn Birrell * 41673e404SJohn Birrell * The contents of this file are subject to the terms of the 51673e404SJohn Birrell * Common Development and Distribution License, Version 1.0 only 61673e404SJohn Birrell * (the "License"). You may not use this file except in compliance 71673e404SJohn Birrell * with the License. 81673e404SJohn Birrell * 91673e404SJohn Birrell * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 101673e404SJohn Birrell * or http://www.opensolaris.org/os/licensing. 111673e404SJohn Birrell * See the License for the specific language governing permissions 121673e404SJohn Birrell * and limitations under the License. 131673e404SJohn Birrell * 141673e404SJohn Birrell * When distributing Covered Code, include this CDDL HEADER in each 151673e404SJohn Birrell * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 161673e404SJohn Birrell * If applicable, add the following below this CDDL HEADER, with the 171673e404SJohn Birrell * fields enclosed by brackets "[]" replaced with your own identifying 181673e404SJohn Birrell * information: Portions Copyright [yyyy] [name of copyright owner] 191673e404SJohn Birrell * 201673e404SJohn Birrell * CDDL HEADER END 211673e404SJohn Birrell */ 221673e404SJohn Birrell /* 231673e404SJohn Birrell * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 241673e404SJohn Birrell * Use is subject to license terms. 251673e404SJohn Birrell */ 261673e404SJohn Birrell 271673e404SJohn Birrell #ifndef _BARRIER_H 281673e404SJohn Birrell #define _BARRIER_H 291673e404SJohn Birrell 301673e404SJohn Birrell #pragma ident "%Z%%M% %I% %E% SMI" 311673e404SJohn Birrell 321673e404SJohn Birrell /* 331673e404SJohn Birrell * APIs for the barrier synchronization primitive. 341673e404SJohn Birrell */ 351673e404SJohn Birrell 36*bc96366cSSteven Hartland #ifdef illumos 371673e404SJohn Birrell #include <synch.h> 384cc75139SJohn Birrell #else 394cc75139SJohn Birrell #include <semaphore.h> 404cc75139SJohn Birrell typedef sem_t sema_t; 414cc75139SJohn Birrell #endif 421673e404SJohn Birrell 431673e404SJohn Birrell #ifdef __cplusplus 441673e404SJohn Birrell extern "C" { 451673e404SJohn Birrell #endif 461673e404SJohn Birrell 471673e404SJohn Birrell typedef struct barrier { 481673e404SJohn Birrell pthread_mutex_t bar_lock; /* protects bar_numin */ 491673e404SJohn Birrell int bar_numin; /* current number of waiters */ 501673e404SJohn Birrell 511673e404SJohn Birrell sema_t bar_sem; /* where everyone waits */ 521673e404SJohn Birrell int bar_nthr; /* # of waiters to trigger release */ 531673e404SJohn Birrell } barrier_t; 541673e404SJohn Birrell 551673e404SJohn Birrell extern void barrier_init(barrier_t *, int); 561673e404SJohn Birrell extern int barrier_wait(barrier_t *); 571673e404SJohn Birrell 581673e404SJohn Birrell #ifdef __cplusplus 591673e404SJohn Birrell } 601673e404SJohn Birrell #endif 611673e404SJohn Birrell 621673e404SJohn Birrell #endif /* _BARRIER_H */ 63