Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+## Examples of how to use Tokio
+
+This directory contains a number of examples showcasing various capabilities of
+the `tokio` crate.
+
+All examples can be executed with:
+
+```
+cargo run --example $name
+```
+
+A high level description of each example is:
+
+* [`hello_world`](hello_world.rs) - a tiny server that writes "hello world" to
+  all connected clients and then terminates the connection, should help see how
+  to create and initialize `tokio`.
+
+* [`echo`](echo.rs) - this is your standard TCP "echo server" which accepts
+  connections and then echos back any contents that are read from each connected
+  client.
+
+* [`print_each_packet`](print_each_packet.rs) - this server will create a TCP
+  listener, accept connections in a loop, and put down in the stdout everything
+  that's read off of each TCP connection.
+
+* [`echo-udp`](echo-udp.rs) - again your standard "echo server", except for UDP
+  instead of TCP.  This will echo back any packets received to the original
+  sender.
+
+* [`connect`](connect.rs) - this is a `nc`-like clone which can be used to
+  interact with most other examples. The program creates a TCP connection or UDP
+  socket and sends all information read on stdin to the remote peer, displaying
+  any data received on stdout. Often quite useful when interacting with the
+  various other servers here!
+
+* [`chat`](chat.rs) - this spins up a local TCP server which will broadcast from
+  any connected client to all other connected clients. You can connect to this
+  in multiple terminals and use it to chat between the terminals.
+
+* [`chat-combinator`](chat-combinator.rs) - Similar to `chat`, but this uses a
+  much more functional programming approach using combinators.
+
+* [`proxy`](proxy.rs) - an example proxy server that will forward all connected
+  TCP clients to the remote address specified when starting the program.
+
+* [`tinyhttp`](tinyhttp.rs) - a tiny HTTP/1.1 server which doesn't support HTTP
+  request bodies showcasing running on multiple cores, working with futures and
+  spawning tasks, and finally framing a TCP connection to discrete
+  request/response objects.
+
+* [`tinydb`](tinydb.rs) - an in-memory database which shows sharing state
+  between all connected clients, notably the key/value store of this database.
+
+* [`udp-client`](udp-client.rs) - a simple `send_dgram`/`recv_dgram` example.
+
+* [`manual-runtime`](manual-runtime.rs) - manually composing a runtime.
+
+* [`blocking`](blocking.rs) - perform heavy computation in blocking environment.
+
+If you've got an example you'd like to see here, please feel free to open an
+issue. Otherwise if you've got an example you'd like to add, please feel free
+to make a PR!