79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
// This file is part of noxos and licensed under the MIT open source license
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#ifndef NOX_VFS_H
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#define NOX_VFS_H
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#include "utils/stdtypes.h"
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#include "utils/string.h"
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#include "boot/boot_info.h"
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#define VFS_MAX_NAME_LENGTH 128
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typedef struct vfs_node_T vfs_node_T;
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typedef enum {
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FS_RAMFS,
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FS_ENUM_END
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} fs_type_E;
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typedef enum {
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VFS_NODE_DIRECTORY,
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VFS_NODE_FILE,
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VFS_NODE_MOUNT,
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VFS_NODE_BLOCK_DEVICE,
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VFS_NODE_ENUM_END
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} vfs_node_type_E;
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typedef struct {
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fs_type_E type;
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vfs_node_T* root_node;
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} fs_T;
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typedef struct {
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void* buffer;
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uint64_t buffer_size;
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bool reclaimable;
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vfs_node_T* node;
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} vfs_node_cache_T;
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struct vfs_node_T{
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char name[VFS_MAX_NAME_LENGTH];
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vfs_node_type_E type;
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vfs_node_cache_T* cache;
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uint64_t size;
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void* specific;
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fs_T* filesystem;
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vfs_node_T* prev;
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vfs_node_T* next;
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vfs_node_T* parent;
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vfs_node_T* childs;
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};
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extern fs_T g_root_fs;
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vfs_node_cache_T* vfs_node_cache_create (vfs_node_T* node, uint64_t size);
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void vfs_node_cache_destruct (vfs_node_cache_T* node_cache);
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vfs_node_T* vfs_node_create (vfs_node_T* parent, string_t name, vfs_node_type_E type, void* specific);
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void vfs_node_destruct (vfs_node_T* node);
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void vfs_node_delete (vfs_node_T* node);
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void vfs_node_dump_info (vfs_node_T* node, uint64_t indent);
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vfs_node_T* vfs_node_resolve_child (vfs_node_T* node, string_t child_name);
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vfs_node_T* vfs_file_create (fs_T* filesystem, string_t path);
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void vfs_file_delete (vfs_node_T* file);
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uint64_t vfs_file_write (vfs_node_T* file, uint64_t position, uint64_t size, uint8_t* buffer_in);
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uint64_t vfs_file_read (vfs_node_T* file, uint64_t position, uint64_t size, uint8_t* buffer_out);
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vfs_node_T* vfs_directory_create (fs_T* filesystem, string_t path);
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void vfs_directory_delete (vfs_node_T* directory);
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void vfs_init (boot_info_T* boot_info);
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vfs_node_T* vfs_resolve_path (fs_T* filesystem, string_t path);
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void vfs_unpack_archive_ustar (fs_T* filesystem, void* archive);
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#endif //NOX_VFS_H
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