freebsd-nq/lib/libcuse/cuse.h
Hans Petter Selasky 58a8f6e9ec cuse(3): Allow allocating a memory buffer of exactly 2 GBytes.
The manual page date will be bumped separately.

MFC after:	1 week
Sponsored by:	NVIDIA Networking
2022-07-20 10:41:11 +02:00

98 lines
3.3 KiB
C

/* $FreeBSD$ */
/*-
* Copyright (c) 2014 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _CUSE_H_
#define _CUSE_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <fs/cuse/cuse_defs.h>
struct cuse_dev;
typedef int (cuse_open_t)(struct cuse_dev *, int fflags);
typedef int (cuse_close_t)(struct cuse_dev *, int fflags);
typedef int (cuse_read_t)(struct cuse_dev *, int fflags, void *user_ptr, int len);
typedef int (cuse_write_t)(struct cuse_dev *, int fflags, const void *user_ptr, int len);
typedef int (cuse_ioctl_t)(struct cuse_dev *, int fflags, unsigned long cmd, void *user_data);
typedef int (cuse_poll_t)(struct cuse_dev *, int fflags, int events);
struct cuse_methods {
cuse_open_t *cm_open;
cuse_close_t *cm_close;
cuse_read_t *cm_read;
cuse_write_t *cm_write;
cuse_ioctl_t *cm_ioctl;
cuse_poll_t *cm_poll;
};
int cuse_init(void);
int cuse_uninit(void);
void *cuse_vmalloc(unsigned);
int cuse_is_vmalloc_addr(void *);
void cuse_vmfree(void *);
unsigned long cuse_vmoffset(void *ptr);
int cuse_alloc_unit_number_by_id(int *, int);
int cuse_free_unit_number_by_id(int, int);
int cuse_alloc_unit_number(int *);
int cuse_free_unit_number(int);
struct cuse_dev *cuse_dev_create(const struct cuse_methods *, void *, void *, uid_t, gid_t, int, const char *,...);
void cuse_dev_destroy(struct cuse_dev *);
void *cuse_dev_get_priv0(struct cuse_dev *);
void *cuse_dev_get_priv1(struct cuse_dev *);
void cuse_dev_set_priv0(struct cuse_dev *, void *);
void cuse_dev_set_priv1(struct cuse_dev *, void *);
void cuse_set_local(int);
int cuse_get_local(void);
int cuse_wait_and_process(void);
void cuse_dev_set_per_file_handle(struct cuse_dev *, void *);
void *cuse_dev_get_per_file_handle(struct cuse_dev *);
int cuse_copy_out(const void *src, void *user_dst, int len);
int cuse_copy_in(const void *user_src, void *dst, int len);
int cuse_got_peer_signal(void);
void cuse_poll_wakeup(void);
struct cuse_dev *cuse_dev_get_current(int *);
extern int cuse_debug_level;
#ifdef __cplusplus
}
#endif
#endif /* _CUSE_H_ */