LWIP protocol stack function return value definition

 

Defined in lwip1.3.0/src/include/LWIP/err. h.

Data Type: typedef s8_t err_t

 

# Define err_ OK 0/* No error, everything is OK */
# Define err_mem-1/* Memory output error */
# Define err_buf-2/* buffer Error */
# Define err_rte-3/* routing problem */

# Define err_is_fatal (E) (e) <err_rte)

# Define err_abrt-4/* Stop link */
# Define err_rst-5/* link reset */
# Define err_clsd-6/* link closed */
# Define err_conn-7/* cannot be linked */

# Define err_val-8/* The value is invalid */

# Define err_arg-9/* the parameter is invalid */

# Define err_use-10/* address in use */

# Define err_if-11/* underlying network interface Error */
# Define err_isconn-12/* linked */

# Define err_timeout-13/* timeout */

# Define err_inprogress-14/* operation in progress */