Function bearssl_sys::br_sslio_init

pub unsafe extern "C" fn br_sslio_init(
    ctx: *mut br_sslio_context, 
    engine: *mut br_ssl_engine_context, 
    low_read: Option<unsafe extern "C" fn(_: *mut c_void, _: *mut c_uchar, _: usize) -> c_int>, 
    read_context: *mut c_void, 
    low_write: Option<unsafe extern "C" fn(_: *mut c_void, _: *const c_uchar, _: usize) -> c_int>, 
    write_context: *mut c_void
)