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 2003 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#ifndef _RCAPD_RFD_H 28#define _RCAPD_RFD_H 29 30#pragma ident "%Z%%M% %I% %E% SMI" 31 32#ifdef __cplusplus 33extern "C" { 34#endif 35 36#include <sys/types.h> 37#include "rcapd.h" 38 39/* 40 * Classes of cached, revocable file descriptors 41 */ 42typedef enum { 43 RFD_PAGEDATA = 1, /* pagedata is always preferred over psinfo */ 44 RFD_PSINFO, /* psinfo, at least one of which is */ 45 /* cached at any time */ 46 RFD_XMAP, /* xmap */ 47 RFD_RESERVED /* opened for use by external consumers */ 48} rfd_class_t; 49 50/* 51 * Revocable file descriptor 52 */ 53typedef struct rfd { 54 int rfd_fd; /* cached descriptor */ 55 rfd_class_t rfd_class; /* class of descriptor */ 56 void(*rfd_revoke)(struct rfd *); /* revocation function */ 57 void *rfd_data; /* supplied data */ 58 59 struct rfd *rfd_next; /* list */ 60 struct rfd *rfd_prev; 61 62 struct rfd *rfd_prev_class; /* link to previous of same */ 63 /* class */ 64} rfd_t; 65 66int rfd_close(int); 67int rfd_open(char *, int, rfd_class_t, void(*)(struct rfd *), void *, int, 68 mode_t); 69int rfd_reserve(int); 70 71#ifdef __cplusplus 72} 73#endif 74 75#endif /* _RCAPD_RFD_H */ 76