dlopen_rs

Trait ExternLibrary

source 
pub trait ExternLibrary {
    // Required method
    fn get_sym(&self, name: &str) -> Option<*const ()>;
}

Required Methods§

source

fn get_sym(&self, name: &str) -> Option<*const ()>

Get the symbol of the dynamic library, and the return value is the address of the symbol

§Examples
#[derive(Debug, Clone)]
struct MyLib(Arc<Library>);

impl ExternLibrary for MyLib {
	fn get_sym(&self, name: &str) -> Option<*const ()> {
		let sym: Option<*const ()> = unsafe {
 			self.0.get::<*const usize>(name.as_bytes())
   			.map_or(None, |sym| Some(sym.into_raw().into_raw() as _))
   		};
   		sym
	}
}

Implementors§