1*1709Smlf /* 2*1709Smlf * CDDL HEADER START 3*1709Smlf * 4*1709Smlf * The contents of this file are subject to the terms of the 5*1709Smlf * Common Development and Distribution License (the "License"). 6*1709Smlf * You may not use this file except in compliance with the License. 7*1709Smlf * 8*1709Smlf * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*1709Smlf * or http://www.opensolaris.org/os/licensing. 10*1709Smlf * See the License for the specific language governing permissions 11*1709Smlf * and limitations under the License. 12*1709Smlf * 13*1709Smlf * When distributing Covered Code, include this CDDL HEADER in each 14*1709Smlf * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*1709Smlf * If applicable, add the following below this CDDL HEADER, with the 16*1709Smlf * fields enclosed by brackets "[]" replaced with your own identifying 17*1709Smlf * information: Portions Copyright [yyyy] [name of copyright owner] 18*1709Smlf * 19*1709Smlf * CDDL HEADER END 20*1709Smlf */ 21*1709Smlf 22*1709Smlf /* 23*1709Smlf * Copyright 1999 Sun Microsystems, Inc. All rights reserved. 24*1709Smlf * Use is subject to license terms. 25*1709Smlf */ 26*1709Smlf 27*1709Smlf #ifndef _GHD_QUEUE_H 28*1709Smlf #define _GHD_QUEUE_H 29*1709Smlf 30*1709Smlf #pragma ident "%Z%%M% %I% %E% SMI" 31*1709Smlf 32*1709Smlf #ifdef __cplusplus 33*1709Smlf extern "C" { 34*1709Smlf #endif 35*1709Smlf 36*1709Smlf 37*1709Smlf /* 38*1709Smlf * A list of singly linked elements 39*1709Smlf */ 40*1709Smlf 41*1709Smlf typedef struct L1el { 42*1709Smlf struct L1el *le_nextp; 43*1709Smlf void *le_datap; 44*1709Smlf } L1el_t; 45*1709Smlf 46*1709Smlf #define L1EL_INIT(lep) ((lep)->le_nextp = NULL, (lep)->le_datap = 0) 47*1709Smlf 48*1709Smlf typedef struct L1_head { 49*1709Smlf L1el_t *l1_headp; 50*1709Smlf L1el_t *l1_tailp; 51*1709Smlf } L1_t; 52*1709Smlf 53*1709Smlf #define L1HEADER_INIT(lp) (((lp)->l1_headp = NULL), ((lp)->l1_tailp = NULL)) 54*1709Smlf #define L1_EMPTY(lp) ((lp)->l1_headp == NULL) 55*1709Smlf 56*1709Smlf void L1_add(L1_t *lp, L1el_t *lep, void *datap); 57*1709Smlf void L1_delete(L1_t *lp, L1el_t *lep); 58*1709Smlf void *L1_remove(L1_t *lp); 59*1709Smlf 60*1709Smlf 61*1709Smlf /* 62*1709Smlf * A list of doubly linked elements 63*1709Smlf */ 64*1709Smlf 65*1709Smlf typedef struct L2el { 66*1709Smlf struct L2el *l2_nextp; 67*1709Smlf struct L2el *l2_prevp; 68*1709Smlf void *l2_private; 69*1709Smlf } L2el_t; 70*1709Smlf 71*1709Smlf #define L2_INIT(headp) \ 72*1709Smlf (((headp)->l2_nextp = (headp)), ((headp)->l2_prevp = (headp))) 73*1709Smlf 74*1709Smlf #define L2_EMPTY(headp) ((headp)->l2_nextp == (headp)) 75*1709Smlf 76*1709Smlf void L2_add(L2el_t *headp, L2el_t *elementp, void *private); 77*1709Smlf void L2_delete(L2el_t *elementp); 78*1709Smlf void L2_add_head(L2el_t *headp, L2el_t *elementp, void *private); 79*1709Smlf void *L2_remove_head(L2el_t *headp); 80*1709Smlf void *L2_next(L2el_t *elementp); 81*1709Smlf 82*1709Smlf 83*1709Smlf #ifdef __cplusplus 84*1709Smlf } 85*1709Smlf #endif 86*1709Smlf #endif /* _GHD_QUEUE_H */ 87