Trait PtpInstanceStateMutex

pub trait PtpInstanceStateMutex {
    // Required methods
    fn new(state: PtpInstanceState) -> Self;
    fn with_ref<R, F: FnOnce(&PtpInstanceState) -> R>(&self, f: F) -> R;
    fn with_mut<R, F: FnOnce(&mut PtpInstanceState) -> R>(&self, f: F) -> R;
}

A mutex over a PtpInstanceState

This provides an abstraction for locking state in various environments. Implementations are provided for core::cell::RefCell and std::sync::RwLock.

Required Methods

fn new(state: PtpInstanceState) -> Self

Creates a new instance of the mutex

fn with_ref<R, F: FnOnce(&PtpInstanceState) -> R>(&self, f: F) -> R

Takes a shared reference to the contained state and calls f with it

fn with_mut<R, F: FnOnce(&mut PtpInstanceState) -> R>(&self, f: F) -> R

Takes a mutable reference to the contained state and calls f with it

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl PtpInstanceStateMutex for RefCell<PtpInstanceState>

fn new(state: PtpInstanceState) -> Self

fn with_ref<R, F: FnOnce(&PtpInstanceState) -> R>(&self, f: F) -> R

fn with_mut<R, F: FnOnce(&mut PtpInstanceState) -> R>(&self, f: F) -> R

impl PtpInstanceStateMutex for RwLock<PtpInstanceState>

fn new(state: PtpInstanceState) -> Self

fn with_ref<R, F: FnOnce(&PtpInstanceState) -> R>(&self, f: F) -> R

fn with_mut<R, F: FnOnce(&mut PtpInstanceState) -> R>(&self, f: F) -> R

Implementors