examples: Add second Rust example

examples/rust-gcoap/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "rust-gcoap"
+version = "0.1.0"
+authors = ["Christian Amsüss <[email protected]>"]
+edition = "2018"
+resolver = "2"
+
+[lib]
+crate-type = ["staticlib"]
+
+[dependencies]
+riot-wrappers = { version = "^0.7", features = [ "with_coap_message", "with_coap_handler" ] }
+
+coap-message-demos = { git = "https://gitlab.com/chrysn/coap-message-demos/", default-features = false, features = [ "with-log" ] }
+coap-handler-implementations = "0.1"
+riot-coap-handler-demos = { git = "https://gitlab.com/etonomy/riot-module-examples" }

examples/rust-gcoap/Makefile

@@ -0,0 +1,29 @@
+# name of your application
+APPLICATION = rust_gcoap
+
+# If no BOARD is found in the environment, use this default:
+BOARD ?= native
+
+# This has to be the absolute path to the RIOT base directory:
+RIOTBASE ?= $(CURDIR)/../..
+
+# Basic networking, and gcoap
+USEMODULE += gcoap
+USEMODULE += gnrc_netdev_default
+USEMODULE += auto_init_gnrc_netif
+USEMODULE += gnrc_ipv6_default
+USEMODULE += gnrc_icmpv6_echo
+
+# Comment this out to disable code in RIOT that does safety checking
+# which is not needed in a production environment but helps in the
+# development process:
+DEVELHELP ?= 1
+
+# Change this to 0 show compiler invocation lines by default:
+QUIET ?= 1
+
+# The name of crate (as per Cargo.toml package name, but with '-' replaced with '_')
+APPLICATION_RUST_MODULE = rust_gcoap
+BASELIBS += $(APPLICATION_RUST_MODULE).module
+
+include $(RIOTBASE)/Makefile.include

examples/rust-gcoap/src/lib.rs

@@ -0,0 +1,34 @@
+// Copyright (C) 2020 Christian Amsüss
+//
+// This file is subject to the terms and conditions of the GNU Lesser
+// General Public License v2.1. See the file LICENSE in the top level
+// directory for more details.
+#![no_std]
+
+use riot_wrappers::riot_main;
+use riot_wrappers::{gcoap, thread, cstr::cstr};
+
+use coap_handler_implementations::HandlerBuilder;
+
+riot_main!(main);
+
+fn main() {
+
+    let handler = coap_message_demos::full_application_tree(None)
+        .at(&["ps", ""], riot_coap_handler_demos::ps::ps())
+        .at(&["netif", ""], riot_coap_handler_demos::netif::netif())
+        .at(&["stdio", "write"], riot_coap_handler_demos::stdio::write())
+        .at(&["stdio", "read"], riot_coap_handler_demos::stdio::read())
+        ;
+    let mut handler = riot_wrappers::coap_handler::GcoapHandler(handler);
+
+    let mut listener = gcoap::SingleHandlerListener::new_catch_all(&mut handler);
+
+    gcoap::scope(|greg| {
+        greg.register(&mut listener);
+
+        // Sending main thread to sleep; can't return or the Gcoap handler would need to be
+        // deregistered (which it can't).
+        loop { thread::sleep(); }
+    })
+}