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QueryFileIdInfo

Struct QueryFileIdInfo 

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pub struct QueryFileIdInfo { /* private fields */ }
Expand description

An owned, marshalable parameter set for GetFileInformationByHandleEx with FileIdInfo.

§Example

use std::fs;

use windows_namespace_request_sys::file_id::QueryFileIdInfo;

let path = std::env::temp_dir().join(format!("wnrs-fid-{}.tmp", std::process::id()));
fs::write(&path, b"example")?;

let first = fs::File::open(&path)?;
let second = fs::File::open(&path)?;
let one = QueryFileIdInfo::new(first).perform()?;
let two = QueryFileIdInfo::new(second).perform()?;

// Two opens of one file report one identity.
assert_eq!(one, two);

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impl QueryFileIdInfo

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pub fn new(handle: impl Into<SharedHandle>) -> Self

Begins a request against handle, which the request holds as one more holder of it.

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pub fn handle(&self) -> &SharedHandle

The handle being queried, shared with its other holders.

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pub fn perform(&self) -> Outcome<FileIdInfo>

Performs the query on the calling thread.

§Errors

Returns the raw Win32 code, unaltered.

Trait Implementations§

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impl Clone for QueryFileIdInfo

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for QueryFileIdInfo

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

Formats the value using the given formatter. Read more
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impl Request for QueryFileIdInfo

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type Error = Win32Error

How performing it can fail. Read more
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type Output = FileIdInfo

What performing the request produces.
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fn perform(&self) -> Outcome<FileIdInfo>

Performs the request on the calling thread. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.