1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _VOLUME_REQUEST_H 28*0Sstevel@tonic-gate #define _VOLUME_REQUEST_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include "volume_devconfig.h" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate /* 39*0Sstevel@tonic-gate * request_t - struct to hold a layout request 40*0Sstevel@tonic-gate */ 41*0Sstevel@tonic-gate typedef struct request { 42*0Sstevel@tonic-gate /* 43*0Sstevel@tonic-gate * The devconfig_t representing the disk set at the top of the 44*0Sstevel@tonic-gate * request hierarchy. This hierarchy represents the requested 45*0Sstevel@tonic-gate * volume configuration, as read from the volume-request. 46*0Sstevel@tonic-gate */ 47*0Sstevel@tonic-gate devconfig_t *diskset_req; 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* 50*0Sstevel@tonic-gate * The devconfig_t representing the disk set at the top of the 51*0Sstevel@tonic-gate * resulting proposed volume hierarchy. This hierarchy 52*0Sstevel@tonic-gate * represents the volume configuration proposed by the layout 53*0Sstevel@tonic-gate * engine. This configuration will eventually be converted to 54*0Sstevel@tonic-gate * a volume-spec. 55*0Sstevel@tonic-gate */ 56*0Sstevel@tonic-gate devconfig_t *diskset_config; 57*0Sstevel@tonic-gate } request_t; 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate /* 60*0Sstevel@tonic-gate * Constructor: Create a request_t struct. This request_t must be 61*0Sstevel@tonic-gate * freed. 62*0Sstevel@tonic-gate * 63*0Sstevel@tonic-gate * @param request 64*0Sstevel@tonic-gate * RETURN: a pointer to a new request_t 65*0Sstevel@tonic-gate * 66*0Sstevel@tonic-gate * @return 0 67*0Sstevel@tonic-gate * if successful 68*0Sstevel@tonic-gate * 69*0Sstevel@tonic-gate * @return non-zero 70*0Sstevel@tonic-gate * if an error occurred. Use get_error_string() to 71*0Sstevel@tonic-gate * retrieve the associated error message. 72*0Sstevel@tonic-gate */ 73*0Sstevel@tonic-gate extern int new_request(request_t **request); 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * Free memory (recursively) allocated to a request_t struct 77*0Sstevel@tonic-gate * 78*0Sstevel@tonic-gate * @param arg 79*0Sstevel@tonic-gate * pointer to the request_t struct to free 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate extern void free_request(void *arg); 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate /* 84*0Sstevel@tonic-gate * Set the disk set at the top of the request hierarchy 85*0Sstevel@tonic-gate * 86*0Sstevel@tonic-gate * @param request 87*0Sstevel@tonic-gate * The request_t representing the request to modify 88*0Sstevel@tonic-gate * 89*0Sstevel@tonic-gate * @param diskset 90*0Sstevel@tonic-gate * The devconfig_t representing the toplevel (disk set) 91*0Sstevel@tonic-gate * device in the volume request hierarchy 92*0Sstevel@tonic-gate */ 93*0Sstevel@tonic-gate extern void request_set_diskset_req(request_t *request, devconfig_t *diskset); 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate /* 96*0Sstevel@tonic-gate * Get the disk set at the top of the request hierarchy 97*0Sstevel@tonic-gate * 98*0Sstevel@tonic-gate * @param request 99*0Sstevel@tonic-gate * The request_t representing the request to examine 100*0Sstevel@tonic-gate * 101*0Sstevel@tonic-gate * @return The devconfig_t representing the toplevel (disk set) 102*0Sstevel@tonic-gate * device in the volume request hierarchy 103*0Sstevel@tonic-gate */ 104*0Sstevel@tonic-gate extern devconfig_t *request_get_diskset_req(request_t *request); 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate /* 107*0Sstevel@tonic-gate * Set/get the disk set at the top of the proposed volume hierarchy 108*0Sstevel@tonic-gate * 109*0Sstevel@tonic-gate * @param request 110*0Sstevel@tonic-gate * The request_t representing the request to modify 111*0Sstevel@tonic-gate * 112*0Sstevel@tonic-gate * @param diskset 113*0Sstevel@tonic-gate * The devconfig_t representing the toplevel (disk set) 114*0Sstevel@tonic-gate * device in the proposed volume hierarchy 115*0Sstevel@tonic-gate */ 116*0Sstevel@tonic-gate extern void request_set_diskset_config( 117*0Sstevel@tonic-gate request_t *request, devconfig_t *diskset); 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate /* 120*0Sstevel@tonic-gate * Get the disk set at the top of the request hierarchy 121*0Sstevel@tonic-gate * 122*0Sstevel@tonic-gate * @param request 123*0Sstevel@tonic-gate * The request_t representing the request to examine 124*0Sstevel@tonic-gate * 125*0Sstevel@tonic-gate * @return The devconfig_t representing the toplevel (disk set) 126*0Sstevel@tonic-gate * device in the proposed volume hierarchy 127*0Sstevel@tonic-gate */ 128*0Sstevel@tonic-gate extern devconfig_t *request_get_diskset_config(request_t *request); 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate #ifdef __cplusplus 131*0Sstevel@tonic-gate } 132*0Sstevel@tonic-gate #endif 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate #endif /* _VOLUME_REQUEST_H */ 135