open_coroutine_hook

Function maybe_grow_stack

Source 
#[unsafe(no_mangle)]
pub extern "C" fn maybe_grow_stack(
    red_zone: usize,
    stack_size: usize,
    f: UserFunc,
    param: usize,
) -> c_longlong
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如果当前协程栈不够，切换到新栈上执行