pub unsafe extern "C" fn ngx_chain_add_copy(
pool: *mut ngx_pool_s,
chain: *mut *mut ngx_chain_s,
in_: *mut ngx_chain_s,
) -> isize
pub unsafe extern "C" fn ngx_chain_add_copy(
pool: *mut ngx_pool_s,
chain: *mut *mut ngx_chain_s,
in_: *mut ngx_chain_s,
) -> isize