Struct libpijul::Inode

pub struct Inode(_);

A unique identifier for files or directories in the actual file system, to map "files from the graph" to real files.

Implementations

impl Inode

pub const ROOT: Inode

pub fn is_root(&self) -> bool

Trait Implementations

impl Clone for Inode

pub fn clone(&self) -> Inode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Inode

impl Debug for Inode

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

Formats the value using the given formatter.

impl Eq for Inode

impl Hash for Inode

pub fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for Inode

pub fn cmp(&self, other: &Inode) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Inode> for Inode

pub fn eq(&self, other: &Inode) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &Inode) -> bool

This method tests for !=.

impl PartialOrd<Inode> for Inode

pub fn partial_cmp(&self, other: &Inode) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

pub fn lt(&self, other: &Inode) -> bool

This method tests less than (for self and other) and is used by the < operator.

pub fn le(&self, other: &Inode) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

pub fn gt(&self, other: &Inode) -> bool

This method tests greater than (for self and other) and is used by the > operator.

pub fn ge(&self, other: &Inode) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Representable for Inode

pub fn alignment() -> Alignment

Alignment of this type. Allowed values are 1, 2, 4 and 8.

pub fn onpage_size(&self) -> u16

How much space this value occupies on the page (not counting alignment padding).

pub unsafe fn write_value(&self, p: *mut u8)

Write this value to a u8 pointer, guaranteed to be a multiple of self.alignment().

pub unsafe fn read_value(p: *const u8) -> Self

Read value from an onpage pointer, guaranteed to be a multiple of self.alignment().

pub unsafe fn cmp_value<T>(&self, _: &T, x: Self) -> Ordering

Compare a value with an onpage value. The current transaction is sometimes helpful, for instance when the page only stores a pointer to another page.

type PageOffsets = Empty<u64>

An iterator over the offsets to pages contained in this value. Only values from this crate can generate non-empty iterators, but combined values (like tuples) must chain the iterators returned by method page_offsets.

pub fn page_offsets(&self) -> Self::PageOffsets

If this value is an offset to another page at offset offset, return Some(offset). Return None else.

pub unsafe fn skip(p: *mut u8) -> *mut u8

First pointer strictly after this value's pointer. The default implementation is basically p.offset(self.onpage_size() as isize), but their might be more efficient implementations in some cases.

pub fn drop_value<E, T, R>(
    &self,
    &mut MutTxn<E, T>,
    &mut R
) -> Result<(), Error> where
    R: Rng,
    E: Borrow<Env<Exclusive>>, 

How to free the pages used by this value. The default implementation doesn't do anything, which is fine for types stored directly on B tree pages.

impl StructuralEq for Inode

impl StructuralPartialEq for Inode