Function nginx::ngx_chain_update_chains

pub unsafe extern "C" fn ngx_chain_update_chains(
    p: *mut ngx_pool_t, 
    free: *mut *mut ngx_chain_t, 
    busy: *mut *mut ngx_chain_t, 
    out: *mut *mut ngx_chain_t, 
    tag: ngx_buf_tag_t
)