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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _RCAPD_RFD_H
#define _RCAPD_RFD_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include "rcapd.h"
/*
* Classes of cached, revocable file descriptors
*/
typedef enum {
RFD_PAGEDATA = 1, /* pagedata is always preferred over psinfo */
RFD_PSINFO, /* psinfo, at least one of which is */
/* cached at any time */
RFD_XMAP, /* xmap */
RFD_RESERVED /* opened for use by external consumers */
} rfd_class_t;
/*
* Revocable file descriptor
*/
typedef struct rfd {
int rfd_fd; /* cached descriptor */
rfd_class_t rfd_class; /* class of descriptor */
void(*rfd_revoke)(struct rfd *); /* revocation function */
void *rfd_data; /* supplied data */
struct rfd *rfd_next; /* list */
struct rfd *rfd_prev;
struct rfd *rfd_prev_class; /* link to previous of same */
/* class */
} rfd_t;
int rfd_close(int);
int rfd_open(char *, int, rfd_class_t, void(*)(struct rfd *), void *, int,
mode_t);
int rfd_reserve(int);
#ifdef __cplusplus
}
#endif
#endif /* _RCAPD_RFD_H */
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