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84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/**
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* @file romfs_dev.h
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* @brief RomFS driver.
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*/
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#pragma once
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#include "../../types.h"
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#include "../../services/fs.h"
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/// WARNING: This is not ready to be used.
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/// RomFS header.
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typedef struct
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{
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u64 headerSize; ///< Size of the header.
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u64 dirHashTableOff; ///< Offset of the directory hash table.
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u64 dirHashTableSize; ///< Size of the directory hash table.
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u64 dirTableOff; ///< Offset of the directory table.
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u64 dirTableSize; ///< Size of the directory table.
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u64 fileHashTableOff; ///< Offset of the file hash table.
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u64 fileHashTableSize; ///< Size of the file hash table.
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u64 fileTableOff; ///< Offset of the file table.
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u64 fileTableSize; ///< Size of the file table.
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u64 fileDataOff; ///< Offset of the file data.
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} romfs_header;
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/// RomFS directory.
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typedef struct
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{
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u32 sibling; ///< Offset of the next sibling directory.
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u32 childDir; ///< Offset of the first child directory.
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u32 childFile; ///< Offset of the first file.
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u32 nextHash; ///< Directory hash table pointer.
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u32 nameLen; ///< Name length.
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uint8_t name[]; ///< Name. (UTF-8)
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} romfs_dir;
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/// RomFS file.
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typedef struct
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{
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u32 parent; ///< Offset of the parent directory.
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u32 sibling; ///< Offset of the next sibling file.
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u64 dataOff; ///< Offset of the file's data.
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u64 dataSize; ///< Length of the file's data.
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u32 nextHash; ///< File hash table pointer.
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u32 nameLen; ///< Name length.
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uint8_t name[]; ///< Name. (UTF-8)
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} romfs_file;
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struct romfs_mount;
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/**
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* @brief Mounts the Application's RomFS.
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* @param mount Output mount handle
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*/
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Result romfsMount(struct romfs_mount **mount);
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static inline Result romfsInit(void)
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{
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return romfsMount(NULL);
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}
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/**
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* @brief Mounts RomFS from an open file.
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* @param file Handle of the RomFS file.
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* @param offset Offset of the RomFS within the file.
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* @param mount Output mount handle
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*/
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Result romfsMountFromFile(FsFile file, u64 offset, struct romfs_mount **mount);
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static inline Result romfsInitFromFile(FsFile file, u64 offset)
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{
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return romfsMountFromFile(file, offset, NULL);
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}
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/// Bind the RomFS mount
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Result romfsBind(struct romfs_mount *mount);
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/// Unmounts the RomFS device.
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Result romfsUnmount(struct romfs_mount *mount);
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static inline Result romfsExit(void)
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{
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return romfsUnmount(NULL);
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}
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