[riot-notifications] [RIOT-OS/RIOT] examples: add TCP echo server & client from documentation (#16739)

benpicco notifications at github.com
Thu Sep 23 18:34:34 CEST 2021


@benpicco commented on this pull request.



> +USEMODULE += netdev_default
+
+USEMODULE += shell
+USEMODULE += shell_commands
+USEMODULE += ps
+USEMODULE += netutils
+
+ifeq (1, $(LWIP))
+  USEMODULE += ipv6_addr
+  USEMODULE += lwip_ipv6_autoconfig
+  USEMODULE += lwip_netdev
+else
+  USEMODULE += auto_init_gnrc_netif
+  USEMODULE += gnrc_ipv6_default
+  # we want to be able to open two sockets
+  CFLAGS += -DCONFIG_GNRC_TCP_RCV_BUFFERS=2

> I think you also need to activate the module config `CONFIG_KCONFIG_USEMODULE_GNRC_TCP=y`, but Kconfig will complain if something goes wrong (that's the advantage of Kconfig instead of just using CFLAGS ;-))

I mean to actually make the build system use the app.config file. It just being present doesn't make the build system pick it up. 

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