NewFileEntry

Struct NewFileEntry 

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pub struct NewFileEntry {
    pub flags: i32,
    pub key: u32,
    pub value: u32,
    pub osversion_unused: u32,
    pub hwcap: u64,
}
Expand description

A single library entry in the new cache format with hardware capabilities.

§Fields

  • flags - Library type flags (same as old format)
  • key - Offset into string table for library name
  • value - Offset into string table for library path
  • osversion_unused - Unused field (always 0)
  • hwcap - Hardware capability mask indicating required processor features

§Hardware Capabilities

The hwcap field encodes processor features required by the library:

  • Bits 0-51: Various CPU features (SSE, AVX, etc.)
  • Bits 52-61: ISA level (x86-64-v2, x86-64-v3, etc.)
  • Bit 62: Extension flag
  • Bit 63: Reserved

§Example

let entry = NewFileEntry {
    flags: 1,
    key: 0,
    value: 20,
    osversion_unused: 0,
    hwcap: 0x1000000000000000, // Some capability set
};
 
// Check for extension flag
let has_extension = entry.hwcap & (1u64 << 62) != 0;
 
// Extract ISA level
let isa_level = (entry.hwcap >> 52) & 0x3ff;

Fields§

§flags: i32§key: u32§value: u32§osversion_unused: u32§hwcap: u64

Trait Implementations§

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impl Clone for NewFileEntry

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fn clone(&self) -> NewFileEntry

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 PartialEq for NewFileEntry

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for NewFileEntry

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 = Infallible

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

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.