Struct tikv_jemalloc_ctl::opt::junk

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pub struct junk;
Expand description

jemalloc’s junk filling mode.

Requires --enable-fill to have been specified during build configuration.

If set to “alloc”, each byte of uninitialized allocated memory will be set to 0x5a. If set to “free”, each byte of deallocated memory will be set to 0x5a. If set to “true”, both allocated and deallocated memory will be initialized, and if set to “false” junk filling will be disabled. This is intended for debugging and will impact performance negatively.

The default is “false”, unless --enable-debug was specified during build configuration, in which case the default is “true”.

§Examples

use tikv_jemalloc_ctl::opt;
let junk = opt::junk::read().unwrap();
println!("junk filling: {}", junk);

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impl junk

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pub fn mib() -> Result<junk_mib>

Returns Management Information Base (MIB)

This value can be used to access the key without doing string lookup.

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pub fn name() -> &'static Name

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impl junk

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pub fn read() -> Result<&'static str>

Reads value using string API.

Auto Trait Implementations§

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impl Freeze for junk

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impl RefUnwindSafe for junk

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impl Send for junk

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impl Sync for junk

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impl Unpin for junk

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impl UnwindSafe for junk

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> 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, 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.