Struct EnvironmentPool 

pub struct EnvironmentPool { /* private fields */ }

环境池,用于复用环境对象

Implementations

impl EnvironmentPool

pub fn new() -> Self

创建新的环境池

pub fn with_capacity(max_size: usize) -> Self

创建指定容量的环境池

pub fn acquire(&mut self) -> Environment

从池中获取或创建新环境

pub fn release(&mut self, env: Environment)

将环境归还到池中

pub fn clear(&mut self)

清空池

Trait Implementations

impl Default for EnvironmentPool

fn default() -> Self

Returns the “default value” for a type.