Struct PortableV2Limits 

pub struct PortableV2Limits {
    pub max_components: u64,
    pub max_entries: u64,
    pub max_entry_bytes: u64,
    pub max_total_bytes: u64,
    pub max_manifest_bytes: u64,
    pub max_semantic_manifest_bytes: u64,
    pub max_tag_manifest_bytes: u64,
    pub max_path_bytes: usize,
    pub copy_buffer_bytes: usize,
}

Writer and reader admission limits for portable-v2 packages.

Limits that grow with the entry count admit every package a project can produce (#900): the payload inventory streams, and the semantic manifest is bounded per package by the entries it actually lists.

Fields

max_components: u64

Components in the semantic manifest.

max_entries: u64

Regular entries in the package, tag files included.

max_entry_bytes: u64

Bytes in one entry.

max_total_bytes: u64

Declared payload bytes across all entries.

max_manifest_bytes: u64

Bytes in each retained JSON control whose size does not grow with the entry count: the runtime map, the ontology composition, and ontology and bridge documents in aggregate. It is also the semantic manifest’s fixed allowance; see Self::semantic_manifest_bound.

max_semantic_manifest_bytes: u64

Ceiling on the semantic manifest, data/graphforge-project.json, whatever its entry count. It is parsed whole, so this bounds reader memory under untrusted input.

max_tag_manifest_bytes: u64

Bytes in each retained tag file: bagit.txt, bag-info.txt and tagmanifest-sha256.txt, which has three rows. The payload inventory, manifest-sha256.txt, has one row per data/ entry; writer and reader stream it, and it is bounded by max_entries and max_path_bytes.

max_path_bytes: usize

UTF-8 bytes in one portable path.

copy_buffer_bytes: usize

Bytes in the streaming copy buffer.

Implementations

impl PortableV2Limits

pub fn semantic_manifest_bound(&self, entries: u64) -> u64

Largest semantic manifest admitted for a package of entries regular entries, checked before it is parsed: the fixed max_manifest_bytes allowance for components and selection, plus one file-record budget per entry, never above max_semantic_manifest_bytes. A small package therefore cannot present a large manifest.

Trait Implementations

impl Clone for PortableV2Limits

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PortableV2Limits

impl Debug for PortableV2Limits

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

Formats the value using the given formatter.

impl Default for PortableV2Limits

fn default() -> Self

Returns the “default value” for a type.