mirror of
https://github.com/cwyark/sdk-ameba-v4.0b_without_nda_gcc.git
synced 2024-11-22 05:54:19 +00:00
26 lines
1.3 KiB
Text
26 lines
1.3 KiB
Text
LWIP TCP KEEPALIVE EXAMPLE
|
|
|
|
Description:
|
|
Example for socket client and server implementation to break out of blocking read by TCP keepalive timeout.
|
|
|
|
Configuration:
|
|
[lwipopts.h]
|
|
#define LWIP_TCP_KEEPALIVE 1
|
|
[platform_opts.h]
|
|
#define CONFIG_EXAMPLE_TCP_KEEPALIVE 1
|
|
|
|
Execution:
|
|
Can make automatical Wi-Fi connection when booting by using wlan fast connect example.
|
|
A TCP keepalive example thread will be started automatically when booting.
|
|
|
|
Setup TEST_MODE in example_tcp_keepalive.c to verify client or server examples. Modify SERVER_IP and SERVER_PORT for client keepalive test. Modify SERVER_PORT for server keepalive test. Modify keepalive timeout by setting keepalive idle, interval and count value to socket options based on requirement.
|
|
|
|
1. For client TCP keepalive example, example thread connects to indicated server and continue to perform blocking read.
|
|
When using ATWD command to disconnect wifi, client thread will break out of blocking read after keepalive timeout
|
|
|
|
2. For server TCP keepalive example, example thread listens on indicated port and read data from the accepted connection.
|
|
Please use a client program to connect to server port of example thread
|
|
When using ATWD command to disconnect wifi, server thread will get select read event after keepalive timeout
|
|
|
|
|
|
|