1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved. 24 */ 25 26 /* 27 * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* 32 * 33 * HEADER: dapl_ring_buffer_util.h 34 * 35 * PURPOSE: Utility defs & routines for the ring buffer data structure 36 * 37 * $Id: dapl_ring_buffer_util.h,v 1.5 2003/06/13 12:21:11 sjs2 Exp $ 38 * 39 */ 40 41 #ifndef _DAPL_RING_BUFFER_H_ 42 #define _DAPL_RING_BUFFER_H_ 43 44 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 #include "dapl.h" 49 50 /* 51 * Prototypes 52 */ 53 DAT_RETURN dapls_rbuf_alloc( 54 DAPL_RING_BUFFER *rbuf, 55 DAT_COUNT size); 56 57 DAT_RETURN dapls_rbuf_realloc( 58 DAPL_RING_BUFFER *rbuf, 59 DAT_COUNT size); 60 61 void dapls_rbuf_destroy( 62 DAPL_RING_BUFFER *rbuf); 63 64 DAT_RETURN dapls_rbuf_add( 65 DAPL_RING_BUFFER *rbuf, 66 void *entry); 67 68 void * dapls_rbuf_remove( 69 DAPL_RING_BUFFER *rbuf); 70 71 DAT_COUNT dapls_rbuf_count( 72 DAPL_RING_BUFFER *rbuf); 73 74 75 /* 76 * Simple functions 77 */ 78 #define dapls_rbuf_empty(rbuf) ((rbuf)->head == (rbuf)->tail) 79 80 #ifdef __cplusplus 81 } 82 #endif 83 84 #endif /* _DAPL_RING_BUFFER_H_ */ 85