58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* Calcite, src/kernel/fs.h
|
|
* Copyright 2025 Benji Dial
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "drives.h"
|
|
|
|
#include <kernel-public/files.h>
|
|
#include <stdint.h>
|
|
|
|
struct fs_stat {
|
|
uint64_t bytes;
|
|
};
|
|
|
|
struct fs_info {
|
|
|
|
const struct drive_info *drive;
|
|
const void *driver_info;
|
|
|
|
enum fs_access_result (*free_node)(
|
|
const struct fs_info *info, void *node);
|
|
|
|
enum fs_access_result (*look_up_file)(
|
|
const struct fs_info *info, void **node_out, const char *path);
|
|
|
|
enum fs_access_result (*stat_file)(
|
|
const struct fs_info *info, void *node, struct fs_stat *stat_out);
|
|
|
|
//start is in bytes. bounds-checking is caller responsibility.
|
|
enum fs_access_result (*read_file)(
|
|
const struct fs_info *info, void *node,
|
|
void *buffer, uint64_t start, uint64_t bytes);
|
|
|
|
};
|
|
|
|
enum fs_access_result create_fs_info(
|
|
const struct drive_info *drive, struct fs_info *fs_out, const char *fs_type);
|
|
|
|
void set_fs(const char *name, const struct fs_info *fs);
|
|
|
|
//returns 0 if no fs is set with that name.
|
|
const struct fs_info *get_fs(const char *name);
|
|
|
|
enum fs_access_result look_up_file(const char *uri, const struct fs_info **fs_out, void **node_out);
|