Struct bytes::buf::Limit

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pub struct Limit<T> { /* private fields */ }
Expand description

A BufMut adapter which limits the amount of bytes that can be written to an underlying buffer.

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impl<T> Limit<T>

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pub fn into_inner(self) -> T

Consumes this Limit, returning the underlying value.

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pub fn get_ref(&self) -> &T

Gets a reference to the underlying BufMut.

It is inadvisable to directly write to the underlying BufMut.

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pub fn get_mut(&mut self) -> &mut T

Gets a mutable reference to the underlying BufMut.

It is inadvisable to directly write to the underlying BufMut.

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pub fn limit(&self) -> usize

Returns the maximum number of bytes that can be written

Note

If the inner BufMut has fewer bytes than indicated by this method then that is the actual number of available bytes.

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pub fn set_limit(&mut self, lim: usize)

Sets the maximum number of bytes that can be written.

Note

If the inner BufMut has fewer bytes than lim then that is the actual number of available bytes.

Trait Implementations§

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impl<T: BufMut> BufMut for Limit<T>

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fn remaining_mut(&self) -> usize

Returns the number of bytes that can be written from the current position until the end of the buffer is reached. Read more
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fn chunk_mut(&mut self) -> &mut UninitSlice

Returns a mutable slice starting at the current BufMut position and of length between 0 and BufMut::remaining_mut(). Note that this can be shorter than the whole remainder of the buffer (this allows non-continuous implementation). Read more
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unsafe fn advance_mut(&mut self, cnt: usize)

Advance the internal cursor of the BufMut Read more
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fn has_remaining_mut(&self) -> bool

Returns true if there is space in self for more bytes. Read more
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fn put<T: Buf>(&mut self, src: T)
where Self: Sized,

Transfer bytes into self from src and advance the cursor by the number of bytes written. Read more
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fn put_slice(&mut self, src: &[u8])

Transfer bytes into self from src and advance the cursor by the number of bytes written. Read more
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fn put_bytes(&mut self, val: u8, cnt: usize)

Put cnt bytes val into self. Read more
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fn put_u8(&mut self, n: u8)

Writes an unsigned 8 bit integer to self. Read more
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fn put_i8(&mut self, n: i8)

Writes a signed 8 bit integer to self. Read more
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fn put_u16(&mut self, n: u16)

Writes an unsigned 16 bit integer to self in big-endian byte order. Read more
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fn put_u16_le(&mut self, n: u16)

Writes an unsigned 16 bit integer to self in little-endian byte order. Read more
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fn put_u16_ne(&mut self, n: u16)

Writes an unsigned 16 bit integer to self in native-endian byte order. Read more
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fn put_i16(&mut self, n: i16)

Writes a signed 16 bit integer to self in big-endian byte order. Read more
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fn put_i16_le(&mut self, n: i16)

Writes a signed 16 bit integer to self in little-endian byte order. Read more
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fn put_i16_ne(&mut self, n: i16)

Writes a signed 16 bit integer to self in native-endian byte order. Read more
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fn put_u32(&mut self, n: u32)

Writes an unsigned 32 bit integer to self in big-endian byte order. Read more
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fn put_u32_le(&mut self, n: u32)

Writes an unsigned 32 bit integer to self in little-endian byte order. Read more
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fn put_u32_ne(&mut self, n: u32)

Writes an unsigned 32 bit integer to self in native-endian byte order. Read more
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fn put_i32(&mut self, n: i32)

Writes a signed 32 bit integer to self in big-endian byte order. Read more
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fn put_i32_le(&mut self, n: i32)

Writes a signed 32 bit integer to self in little-endian byte order. Read more
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fn put_i32_ne(&mut self, n: i32)

Writes a signed 32 bit integer to self in native-endian byte order. Read more
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fn put_u64(&mut self, n: u64)

Writes an unsigned 64 bit integer to self in the big-endian byte order. Read more
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fn put_u64_le(&mut self, n: u64)

Writes an unsigned 64 bit integer to self in little-endian byte order. Read more
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fn put_u64_ne(&mut self, n: u64)

Writes an unsigned 64 bit integer to self in native-endian byte order. Read more
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fn put_i64(&mut self, n: i64)

Writes a signed 64 bit integer to self in the big-endian byte order. Read more
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fn put_i64_le(&mut self, n: i64)

Writes a signed 64 bit integer to self in little-endian byte order. Read more
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fn put_i64_ne(&mut self, n: i64)

Writes a signed 64 bit integer to self in native-endian byte order. Read more
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fn put_u128(&mut self, n: u128)

Writes an unsigned 128 bit integer to self in the big-endian byte order. Read more
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fn put_u128_le(&mut self, n: u128)

Writes an unsigned 128 bit integer to self in little-endian byte order. Read more
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fn put_u128_ne(&mut self, n: u128)

Writes an unsigned 128 bit integer to self in native-endian byte order. Read more
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fn put_i128(&mut self, n: i128)

Writes a signed 128 bit integer to self in the big-endian byte order. Read more
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fn put_i128_le(&mut self, n: i128)

Writes a signed 128 bit integer to self in little-endian byte order. Read more
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fn put_i128_ne(&mut self, n: i128)

Writes a signed 128 bit integer to self in native-endian byte order. Read more
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fn put_uint(&mut self, n: u64, nbytes: usize)

Writes an unsigned n-byte integer to self in big-endian byte order. Read more
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fn put_uint_le(&mut self, n: u64, nbytes: usize)

Writes an unsigned n-byte integer to self in the little-endian byte order. Read more
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fn put_uint_ne(&mut self, n: u64, nbytes: usize)

Writes an unsigned n-byte integer to self in the native-endian byte order. Read more
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fn put_int(&mut self, n: i64, nbytes: usize)

Writes low nbytes of a signed integer to self in big-endian byte order. Read more
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fn put_int_le(&mut self, n: i64, nbytes: usize)

Writes low nbytes of a signed integer to self in little-endian byte order. Read more
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fn put_int_ne(&mut self, n: i64, nbytes: usize)

Writes low nbytes of a signed integer to self in native-endian byte order. Read more
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fn put_f32(&mut self, n: f32)

Writes an IEEE754 single-precision (4 bytes) floating point number to self in big-endian byte order. Read more
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fn put_f32_le(&mut self, n: f32)

Writes an IEEE754 single-precision (4 bytes) floating point number to self in little-endian byte order. Read more
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fn put_f32_ne(&mut self, n: f32)

Writes an IEEE754 single-precision (4 bytes) floating point number to self in native-endian byte order. Read more
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fn put_f64(&mut self, n: f64)

Writes an IEEE754 double-precision (8 bytes) floating point number to self in big-endian byte order. Read more
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fn put_f64_le(&mut self, n: f64)

Writes an IEEE754 double-precision (8 bytes) floating point number to self in little-endian byte order. Read more
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fn put_f64_ne(&mut self, n: f64)

Writes an IEEE754 double-precision (8 bytes) floating point number to self in native-endian byte order. Read more
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fn limit(self, limit: usize) -> Limit<Self>
where Self: Sized,

Creates an adaptor which can write at most limit bytes to self. Read more
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fn writer(self) -> Writer<Self>
where Self: Sized,

Creates an adaptor which implements the Write trait for self. Read more
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fn chain_mut<U: BufMut>(self, next: U) -> Chain<Self, U>
where Self: Sized,

Creates an adapter which will chain this buffer with another. Read more
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impl<T: Debug> Debug for Limit<T>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Limit<T>
where T: RefUnwindSafe,

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impl<T> Send for Limit<T>
where T: Send,

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impl<T> Sync for Limit<T>
where T: Sync,

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impl<T> Unpin for Limit<T>
where T: Unpin,

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impl<T> UnwindSafe for Limit<T>
where T: UnwindSafe,

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.