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