Struct std::io::Initializer

pub struct Initializer(_);

🔬 This is a nightly-only experimental API. (read_initializer #42788)

一种类型，用于有条件地初始化传递给 Read 方法的缓冲区。

Implementations

impl Initializer

pub fn zeroing() -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer #42788)

返回一个新的 Initializer，它将缓冲区归零。

pub unsafe fn nop() -> Initializer

🔬 This is a nightly-only experimental API. (read_initializer #42788)

返回不会将缓冲区归零的新 Initializer。

Safety

这只能由 Read 调用，该 Read 保证它们不会从传递给 Read 方法的缓冲区中读取，并且该方法的返回值准确地反映了已写入缓冲区头部的字节数。

pub fn should_initialize(&self) -> bool

🔬 This is a nightly-only experimental API. (read_initializer #42788)

指示是否应初始化缓冲区。

pub fn initialize(&self, buf: &mut [u8])

🔬 This is a nightly-only experimental API. (read_initializer #42788)

必要时初始化缓冲区。

Trait Implementations

impl Debug for Initializer

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

使用给定的格式化程序格式化该值。