vfs.h

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/*
 * PROJECT:      MatanelOS Kernel
 * LICENSE:      GPLv3
 * PURPOSE:      Virtual File System (VFS) Header Functions & Structures.
 */
 
#ifndef X86_VFS_H
#define X86_VFS_H
 
// Include the FAT32 Header.
#include "../fat32/fat32.h"
 
typedef enum _FS_WRITE_MODES {
    WRITE_MODE_APPEND_EXISTING,
    WRITE_MODE_CREATE_OR_REPLACE,
} FS_WRITE_MODES;
 
typedef struct FS_DRIVER {
    MTSTATUS(*init)(uint8_t device_id);
    MTSTATUS(*read)(const char* filename, uint32_t* file_size_out, void** buffer_out);
    MTSTATUS(*write)(const char* path, const void* data, uint32_t size, uint32_t mode);
    MTSTATUS(*delete)(const char* path);
    MTSTATUS(*mkdir)(const char* path);
    MTSTATUS(*rmdir)(const char* path);
    bool(*is_dir_empty)(const char* path);
    MTSTATUS(*listdir)(const char* path, char* listings, size_t max_len);
    void(*listrootdir)(void);
} FS_DRIVER;

MTSTATUS vfs_init(void);

MTSTATUS vfs_read(const char* filename, uint32_t* file_size_out, void** buffer_out);

MTSTATUS vfs_write(const char* path, const void* data, uint32_t size, FS_WRITE_MODES write_mode);

MTSTATUS vfs_delete(const char* path);

MTSTATUS vfs_listdir(const char* path, char* listings, size_t max_len);

MTSTATUS vfs_mkdir(const char* path);

MTSTATUS vfs_rmdir(const char* path);

bool vfs_is_dir_empty(const char* path);

void vfs_listrootdir(void);
 
#endif