ngx::ffi

Function ENGINE_set_load_privkey_function

Source 
pub unsafe extern "C" fn ENGINE_set_load_privkey_function(
    e: *mut engine_st,
    loadpriv_f: Option<unsafe extern "C" fn(*mut engine_st, *const i8, *mut ui_method_st, *mut c_void) -> *mut evp_pkey_st>,
) -> i32