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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1994, by Sun Microsytems, Inc. 24 */ 25 26 #ifndef _QUEUE_H 27 #define _QUEUE_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * Includes 33 */ 34 35 #include <sys/types.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /* 42 * Typedefs 43 */ 44 45 typedef struct queue_node queue_node_t; 46 struct queue_node { 47 queue_node_t *next_p; 48 queue_node_t *prev_p; 49 }; 50 51 52 /* 53 * Declarations 54 */ 55 56 boolean_t queue_isempty(queue_node_t * q); 57 queue_node_t *queue_prepend(queue_node_t * h, queue_node_t * q); 58 queue_node_t *queue_append(queue_node_t * h, queue_node_t * q); 59 void queue_init(queue_node_t * q); 60 queue_node_t *queue_next(queue_node_t * h, queue_node_t * q); 61 queue_node_t *queue_remove(queue_node_t * q); 62 63 #ifdef __cplusplus 64 } 65 #endif 66 67 #endif /* _QUEUE_H */ 68