Struct ModuleHeader

pub struct ModuleHeader {

    magic: u32,
    version: i32,
    module_id: i64,
    pub(super) file_count: u32,
    manifest0_count: u32,
    manifest1_count: u32,
    manifest2_count: u32,
    resource_index: i32,
    strings_size: u32,
    pub(super) resource_count: u32,
    pub(super) block_count: u32,
    build_version: u64,
    pub(super) hd1_delta: u64,
    pub(super) data_size: u64,
}

Module Header structure containing info on the layout of the module file. Version 53+.

Fields

magic: u32

Should be “mohd” (0x64686F6D)

version: i32

Flight 1: 48 / Flight 2: 51 & Retail / Season 3+: 52 CU30+: 53

module_id: i64

Unique identifier. (not a hash?)

file_count: u32

Number of files in the module.

manifest0_count: u32

Unknown: not in all modules.

manifest1_count: u32

Unknown: present in most modules.

manifest2_count: u32

Unknown: not present in any modules.

resource_index: i32

Index of the first resource entry (file_count - resource_count).

strings_size: u32

Total size in bytes of the string table.

resource_count: u32

Number of resource files.

block_count: u32

Number of data blocks.

build_version: u64

Same between modules, changes per build?

hd1_delta: u64

If non-zero, requires hd1 file.

data_size: u64

Total size of packed data in the module. Both compressed and uncompressed. Starts after files, blocks, and resources have been read.

Implementations

impl ModuleHeader

pub(super) fn read(&mut self, reader: &mut BufReader<File>) -> Result<()>

Reads the module header from the given buffered reader.

Arguments

• reader - A mutable reference to a BufReader<File> from which to read the data.

Returns

Returns Ok(()) if the header is successfully read, or an Error if an I/O error occurs or if the header data is invalid.

Errors

This function will return an error if:

• The magic string is not “mohd”
• The version is less than or equal to 0x34
• Any I/O error occurs while reading

Trait Implementations

impl Debug for ModuleHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ModuleHeader

fn default() -> ModuleHeader

Returns the “default value” for a type.