Struct inotify::WatchMask

pub struct WatchMask { /* fields omitted */ }

Describes a file system watch

Passed to Inotify::add_watch, to describe what file system events to watch for, and how to do that.

Examples

WatchMask constants can be passed to Inotify::add_watch as is. For example, here’s how to create a watch that triggers an event when a file is accessed:

inotify.add_watch("/tmp/inotify-rs-test-file", WatchMask::ACCESS)
   .expect("Error adding watch");

You can also combine multiple WatchMask constants. Here we add a watch this is triggered both when files are created or deleted in a directory:

inotify.add_watch("/tmp/", WatchMask::CREATE | WatchMask::DELETE)
   .expect("Error adding watch");

Implementations

impl WatchMask

pub const ACCESS: WatchMask

File was accessed

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_ACCESS.

pub const ATTRIB: WatchMask

Metadata (permissions, timestamps, …) changed

When watching a directory, this event can be triggered for the directory itself, as well as objects inside the directory.

See inotify_sys::IN_ATTRIB.

pub const CLOSE_WRITE: WatchMask

File opened for writing was closed

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_CLOSE_WRITE.

pub const CLOSE_NOWRITE: WatchMask

File or directory not opened for writing was closed

When watching a directory, this event can be triggered for the directory itself, as well as objects inside the directory.

See inotify_sys::IN_CLOSE_NOWRITE.

pub const CREATE: WatchMask

File/directory created in watched directory

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_CREATE.

pub const DELETE: WatchMask

File/directory deleted from watched directory

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_DELETE.

pub const DELETE_SELF: WatchMask

Watched file/directory was deleted

See inotify_sys::IN_DELETE_SELF.

pub const MODIFY: WatchMask

File was modified

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_MODIFY.

pub const MOVE_SELF: WatchMask

Watched file/directory was moved

See inotify_sys::IN_MOVE_SELF.

pub const MOVED_FROM: WatchMask

File was renamed/moved; watched directory contained old name

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_MOVED_FROM.

pub const MOVED_TO: WatchMask

File was renamed/moved; watched directory contains new name

When watching a directory, this event is only triggered for objects inside the directory, not the directory itself.

See inotify_sys::IN_MOVED_TO.

pub const OPEN: WatchMask

File or directory was opened

When watching a directory, this event can be triggered for the directory itself, as well as objects inside the directory.

See inotify_sys::IN_OPEN.

pub const ALL_EVENTS: WatchMask

Watch for all events

This constant is simply a convenient combination of the following other constants:

• ACCESS
• ATTRIB
• CLOSE_WRITE
• CLOSE_NOWRITE
• CREATE
• DELETE
• DELETE_SELF
• MODIFY
• MOVE_SELF
• MOVED_FROM
• MOVED_TO
• OPEN

See inotify_sys::IN_ALL_EVENTS.

pub const MOVE: WatchMask

Watch for all move events

This constant is simply a convenient combination of the following other constants:

• MOVED_FROM
• MOVED_TO

See inotify_sys::IN_MOVE.

pub const CLOSE: WatchMask

Watch for all close events

This constant is simply a convenient combination of the following other constants:

• CLOSE_WRITE
• CLOSE_NOWRITE

See inotify_sys::IN_CLOSE.

pub const DONT_FOLLOW: WatchMask

Don’t dereference the path if it is a symbolic link

See inotify_sys::IN_DONT_FOLLOW.

pub const EXCL_UNLINK: WatchMask

Filter events for directory entries that have been unlinked

See inotify_sys::IN_EXCL_UNLINK.

pub const MASK_ADD: WatchMask

If a watch for the inode exists, amend it instead of replacing it

See inotify_sys::IN_MASK_ADD.

pub const ONESHOT: WatchMask

Only receive one event, then remove the watch

See inotify_sys::IN_ONESHOT.

pub const ONLYDIR: WatchMask

Only watch path, if it is a directory

See inotify_sys::IN_ONLYDIR.

pub const fn empty() -> WatchMask

Returns an empty set of flags

pub const fn all() -> WatchMask

Returns the set containing all flags.

pub const fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u32) -> Option<WatchMask>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u32) -> WatchMask

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u32) -> WatchMask

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: WatchMask) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: WatchMask) -> bool

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: WatchMask)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: WatchMask)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: WatchMask)

Toggles the specified flags in-place.

pub fn set(&mut self, other: WatchMask, value: bool)

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for WatchMask

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

Formats the value using the given formatter.

impl BitAnd<WatchMask> for WatchMask

type Output = WatchMask

The resulting type after applying the & operator.

fn bitand(self, other: WatchMask) -> WatchMask

Returns the intersection between the two sets of flags.

impl BitAndAssign<WatchMask> for WatchMask

fn bitand_assign(&mut self, other: WatchMask)

Disables all flags disabled in the set.

impl BitOr<WatchMask> for WatchMask

type Output = WatchMask

The resulting type after applying the | operator.

fn bitor(self, other: WatchMask) -> WatchMask

Returns the union of the two sets of flags.

impl BitOrAssign<WatchMask> for WatchMask

fn bitor_assign(&mut self, other: WatchMask)

Adds the set of flags.

impl BitXor<WatchMask> for WatchMask

type Output = WatchMask

The resulting type after applying the ^ operator.

fn bitxor(self, other: WatchMask) -> WatchMask

Returns the left flags, but with all the right flags toggled.

impl BitXorAssign<WatchMask> for WatchMask

fn bitxor_assign(&mut self, other: WatchMask)

Toggles the set of flags.

impl Clone for WatchMask

fn clone(&self) -> WatchMask

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for WatchMask

impl Debug for WatchMask

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

Formats the value using the given formatter.

impl Eq for WatchMask

impl Extend<WatchMask> for WatchMask

fn extend<T: IntoIterator<Item = WatchMask>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

pub fn extend_one(&mut self, item: A)

🔬 This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

pub fn extend_reserve(&mut self, additional: usize)

🔬 This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<WatchMask> for WatchMask

fn from_iter<T: IntoIterator<Item = WatchMask>>(iterator: T) -> WatchMask

Creates a value from an iterator.

impl Hash for WatchMask

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 LowerHex for WatchMask

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

Formats the value using the given formatter.

impl Not for WatchMask

type Output = WatchMask

The resulting type after applying the ! operator.

fn not(self) -> WatchMask

Returns the complement of this set of flags.

impl Octal for WatchMask

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

Formats the value using the given formatter.

impl Ord for WatchMask

fn cmp(&self, other: &WatchMask) -> 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<WatchMask> for WatchMask

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

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

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

This method tests for !=.

impl PartialOrd<WatchMask> for WatchMask

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

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

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

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

#[must_use]pub fn le(&self, other: &Rhs) -> bool

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

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

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

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

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

impl StructuralEq for WatchMask

impl StructuralPartialEq for WatchMask

impl Sub<WatchMask> for WatchMask

type Output = WatchMask

The resulting type after applying the - operator.

fn sub(self, other: WatchMask) -> WatchMask

Returns the set difference of the two sets of flags.

impl SubAssign<WatchMask> for WatchMask

fn sub_assign(&mut self, other: WatchMask)

Disables all flags enabled in the set.

impl UpperHex for WatchMask

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

Formats the value using the given formatter.