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88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
#ifndef _KERNEL_FS_VFS_H
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#define _KERNEL_FS_VFS_H
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#include <desc.h>
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#include <device/device.h>
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#include <dir_entry.h>
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#include <libk/hash.h>
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#include <libk/list.h>
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#include <libk/rbtree.h>
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#include <libk/std.h>
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#include <path_defs.h>
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#include <proc/proc.h>
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#include <proc/procgroup.h>
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#include <proc/reschedule.h>
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#include <proc/suspension_q.h>
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#include <sync/spin_lock.h>
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#define VFS_KERNEL ((struct proc*)0x123)
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#define VFS_TARFS 0
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#define VFS_FAT16 1
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#define VFS_FAT32 2
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struct vfs_volume;
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struct vfs_volume {
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char key[VOLUME_MAX];
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struct hash_node_link volume_table_link;
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int fs_type;
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spin_lock_t lock;
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struct proc* owner;
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bool locked;
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struct proc_suspension_q sq;
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struct {
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int (*mount) (struct vfs_volume* volume, bool format);
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int (*format) (struct vfs_volume* volume);
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int (*describe) (struct vfs_volume* volume, const char* path, struct desc* desc);
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int (*read_file) (struct vfs_volume* volume, const char* path, uint8_t* buffer, size_t off,
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size_t size);
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int (*write_file) (struct vfs_volume* volume, const char* path, uint8_t* buffer, size_t off,
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size_t size);
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int (*read_dir_entry) (struct vfs_volume* volume, const char* path, struct dir_entry* entry,
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size_t entry_num);
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int (*create_file) (struct vfs_volume* volume, const char* path);
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} driver_ops;
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struct device* back_device;
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void* udata
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};
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struct vfs_volume_table {
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struct hash_node_link* volume_buckets[1024];
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spin_lock_t lock;
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};
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int vfs_create_volume (const char* key, int fs_type, struct device* back_device, bool format);
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int vfs_volume_open (struct proc* proc, const char* volume, struct reschedule_ctx* rctx);
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int vfs_volume_close (struct proc* proc, const char* volume, struct reschedule_ctx* rctx);
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int vfs_format (struct proc* proc, const char* volume_name);
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int vfs_read_file (struct proc* proc, const char* volume, const char* path, uint8_t* buffer,
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size_t off, size_t size);
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int vfs_write_file (struct proc* proc, const char* volume, const char* path, uint8_t* buffer,
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size_t off, size_t size);
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int vfs_describe (struct proc* proc, const char* volume, const char* path, struct desc* desc);
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int vfs_read_dir_entry (struct proc* proc, const char* volume, const char* path,
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struct dir_entry* entry, size_t entry_num);
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int vfs_create_file (struct proc* proc, const char* volume_name, const char* path);
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void vfs_init (void);
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void vfs_translate (size_t fs_block, size_t fs_block_count, size_t fs_block_size,
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size_t device_sector_size, size_t* out_phys_sector, size_t* out_sector_count);
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#endif // _KERNEL_FS_VFS_H
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