ngx::ffi

Function EVP_MD_meth_set_update

Source 
pub unsafe extern "C" fn EVP_MD_meth_set_update(
    md: *mut evp_md_st,
    update: Option<unsafe extern "C" fn(_: *mut evp_md_ctx_st, _: *const c_void, _: usize) -> i32>,
) -> i32