Trait wasmtime::CallHookHandler

pub trait CallHookHandler<T>: Send {
    fn handle_call_event<'life0, 'life1, 'async_trait>(
        &'life0 self, 
        t: &'life1 mut T, 
        ch: CallHook
    ) -> Pin<Box<dyn Future<Output = Result<(), Trap>> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        'life1: 'async_trait,
        Self: 'async_trait;
}

An object that can take callbacks when the runtime enters or exits hostcalls.

Required methods

fn handle_call_event<'life0, 'life1, 'async_trait>(
    &'life0 self,
    t: &'life1 mut T,
    ch: CallHook
) -> Pin<Box<dyn Future<Output = Result<(), Trap>> + Send + 'async_trait>> where
    'life0: 'async_trait,
    'life1: 'async_trait,
    Self: 'async_trait, 

A callback to run when wasmtime is about to enter a host call, or when about to exit the hostcall.

Implementors