exfat_setpos_t Struct Reference

Directory position (cluster + entry index) of one 32-byte entry. More...

#include <ra8_fs_fat_types_internal.h>

Data Fields
uint32_t	cluster
	Directory cluster holding the entry.
uint32_t	index
	Entry index within that cluster (0-based).

Detailed Description

Directory position (cluster + entry index) of one 32-byte entry.

A directory is a cluster chain, so an entry's address is a cluster plus an index inside it and NOT a flat offset – a set can straddle a cluster boundary and its entries then live in two different clusters. Everything that rewrites an entry in place carries these coordinates rather than recomputing them.

Invariant

index is below the directory's entries-per-cluster.

Example:

const exfat_setpos_t head = {.cluster = f->entry_set_cluster,
                             .index   = f->entry_set_index};

See also

priv_exfat_find_set()

Since

0.1.0

Definition at line 777 of file ra8_fs_fat_types_internal.h.

Field Documentation

cluster

uint32_t exfat_setpos_t::cluster

Directory cluster holding the entry.

Definition at line 778 of file ra8_fs_fat_types_internal.h.

Referenced by internal_exfat_enter(), internal_exfat_put_entry(), internal_exfat_seed_handle(), internal_setattr_exfat(), internal_utime_exfat(), priv_exfat_drop_set(), priv_exfat_flush_set(), priv_exfat_link(), and priv_exfat_set_label().

index

uint32_t exfat_setpos_t::index

Entry index within that cluster (0-based).

Definition at line 779 of file ra8_fs_fat_types_internal.h.

Referenced by internal_exfat_enter(), internal_exfat_put_entry(), internal_exfat_seed_handle(), internal_setattr_exfat(), internal_utime_exfat(), priv_exfat_drop_set(), priv_exfat_flush_set(), priv_exfat_link(), and priv_exfat_set_label().

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The documentation for this struct was generated from the following file:

• libs/ra8_fs/src/ra8_fs_fat_types_internal.h