Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 58 insertions, 0 deletions

diff --git a/third_party/rust/midir/examples/test_read_input.rs b/third_party/rust/midir/examples/test_read_input.rs
new file mode 100644
index 0000000000..321ccc7d15
--- /dev/null
+++ b/third_party/rust/midir/examples/test_read_input.rs
@@ -0,0 +1,58 @@
+extern crate midir;
+
+use std::io::{stdin, stdout, Write};
+use std::error::Error;
+
+use midir::{MidiInput, Ignore};
+
+fn main() {
+    match run() {
+        Ok(_) => (),
+        Err(err) => println!("Error: {}", err)
+    }
+}
+
+fn run() -> Result<(), Box<dyn Error>> {
+    let mut input = String::new();
+    
+    let mut midi_in = MidiInput::new("midir reading input")?;
+    midi_in.ignore(Ignore::None);
+    
+    // Get an input port (read from console if multiple are available)
+    let in_ports = midi_in.ports();
+    let in_port = match in_ports.len() {
+        0 => return Err("no input port found".into()),
+        1 => {
+            println!("Choosing the only available input port: {}", midi_in.port_name(&in_ports[0]).unwrap());
+            &in_ports[0]
+        },
+        _ => {
+            println!("\nAvailable input ports:");
+            for (i, p) in in_ports.iter().enumerate() {
+                println!("{}: {}", i, midi_in.port_name(p).unwrap());
+            }
+            print!("Please select input port: ");
+            stdout().flush()?;
+            let mut input = String::new();
+            stdin().read_line(&mut input)?;
+            in_ports.get(input.trim().parse::<usize>()?)
+                     .ok_or("invalid input port selected")?
+        }
+    };
+    
+    println!("\nOpening connection");
+    let in_port_name = midi_in.port_name(in_port)?;
+
+    // _conn_in needs to be a named parameter, because it needs to be kept alive until the end of the scope
+    let _conn_in = midi_in.connect(in_port, "midir-read-input", move |stamp, message, _| {
+        println!("{}: {:?} (len = {})", stamp, message, message.len());
+    }, ())?;
+    
+    println!("Connection open, reading input from '{}' (press enter to exit) ...", in_port_name);
+
+    input.clear();
+    stdin().read_line(&mut input)?; // wait for next enter key press
+
+    println!("Closing connection");
+    Ok(())
+}