1*03831d35Sstevel /* 2*03831d35Sstevel * CDDL HEADER START 3*03831d35Sstevel * 4*03831d35Sstevel * The contents of this file are subject to the terms of the 5*03831d35Sstevel * Common Development and Distribution License, Version 1.0 only 6*03831d35Sstevel * (the "License"). You may not use this file except in compliance 7*03831d35Sstevel * with the License. 8*03831d35Sstevel * 9*03831d35Sstevel * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*03831d35Sstevel * or http://www.opensolaris.org/os/licensing. 11*03831d35Sstevel * See the License for the specific language governing permissions 12*03831d35Sstevel * and limitations under the License. 13*03831d35Sstevel * 14*03831d35Sstevel * When distributing Covered Code, include this CDDL HEADER in each 15*03831d35Sstevel * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*03831d35Sstevel * If applicable, add the following below this CDDL HEADER, with the 17*03831d35Sstevel * fields enclosed by brackets "[]" replaced with your own identifying 18*03831d35Sstevel * information: Portions Copyright [yyyy] [name of copyright owner] 19*03831d35Sstevel * 20*03831d35Sstevel * CDDL HEADER END 21*03831d35Sstevel */ 22*03831d35Sstevel /* 23*03831d35Sstevel * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 24*03831d35Sstevel * Use is subject to license terms. 25*03831d35Sstevel */ 26*03831d35Sstevel 27*03831d35Sstevel #ifndef __XSEM_H__ 28*03831d35Sstevel #define __XSEM_H__ 29*03831d35Sstevel 30*03831d35Sstevel #ifdef __cplusplus 31*03831d35Sstevel extern "C" { 32*03831d35Sstevel #endif 33*03831d35Sstevel 34*03831d35Sstevel /* 35*03831d35Sstevel * xsem.h: to provide a semaphore system (used by the smq routines) 36*03831d35Sstevel * 37*03831d35Sstevel * these routines come from the libxposix library. 38*03831d35Sstevel */ 39*03831d35Sstevel 40*03831d35Sstevel #include <pthread.h> 41*03831d35Sstevel #include <time.h> 42*03831d35Sstevel 43*03831d35Sstevel 44*03831d35Sstevel /* DEFINES */ 45*03831d35Sstevel #define XSEM_ERROR -1 46*03831d35Sstevel #define XSEM_EBUSY 1 47*03831d35Sstevel #define XSEM_ETIME 2 48*03831d35Sstevel 49*03831d35Sstevel 50*03831d35Sstevel /* STRUCTURES */ 51*03831d35Sstevel typedef struct 52*03831d35Sstevel { 53*03831d35Sstevel pthread_mutex_t semMutex; 54*03831d35Sstevel pthread_cond_t semCV; 55*03831d35Sstevel int semaphore; 56*03831d35Sstevel } xsem_t; 57*03831d35Sstevel 58*03831d35Sstevel 59*03831d35Sstevel /* PROTOTYPES */ 60*03831d35Sstevel int xsem_init(xsem_t *sem, int pshared, unsigned int value); 61*03831d35Sstevel void xsem_destroy(xsem_t *sem); 62*03831d35Sstevel int xsem_wait(xsem_t *sem); 63*03831d35Sstevel int xsem_trywait(xsem_t *sem); 64*03831d35Sstevel int xsem_post(xsem_t *sem); 65*03831d35Sstevel void xsem_getvalue(xsem_t *sem, int *sval); 66*03831d35Sstevel 67*03831d35Sstevel int xsem_xwait(xsem_t *sem, int timeout, timestruc_t *time); 68*03831d35Sstevel 69*03831d35Sstevel #ifdef __cplusplus 70*03831d35Sstevel } 71*03831d35Sstevel #endif 72*03831d35Sstevel 73*03831d35Sstevel #endif /* __XSEM_H__ */ 74