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/*
* Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
* 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.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 _FS_TMPFS_H_
#define _FS_TMPFS_H_
#include <sys/types.h>
#include <sys/limits.h>
#include <sys/vnode.h>
#include <sys/queue.h>
#include <sys/spinlock.h>
#include <vm/vm_obj.h>
extern const struct vops g_tmpfs_vops;
/* Tmpfs node types */
#define TMPFS_NONE (VNON) /* No type */
#define TMPFS_REG (VREG) /* Regular file [f] */
#define TMPFS_DIR (VDIR) /* Directory [d] */
struct tmpfs_node;
/*
* A tmpfs node represents an object within the
* tmpfs namespace such as a file, directory, etc.
*
* @rpath: /tmp/ relative path (for lookups)
* @type: The tmpfs node type [one-to-one to vtype]
* @len: Length of buffer
* @data: The backing file data
* @dirvp: Vnode of the parent node
* @vp: Vnode of the current node
* @lock: Lock protecting this node
*/
struct tmpfs_node {
char rpath[PATH_MAX];
uint8_t type;
size_t len;
void *data;
struct vnode *dirvp;
struct vnode *vp;
struct spinlock lock;
TAILQ_HEAD(, tmpfs_node) dirents;
TAILQ_ENTRY(tmpfs_node) link;
};
#endif /* !_FS_TMPFS_H_ */
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