1 files changed, 35 insertions, 0 deletions
diff --git a/third_party/rust/winreg/examples/transactions.rs b/third_party/rust/winreg/examples/transactions.rs
new file mode 100644
index 0000000000..4cc91b7c9f
--- /dev/null
+++ b/third_party/rust/winreg/examples/transactions.rs
@@ -0,0 +1,35 @@
+// Copyright 2015, Igor Shaula
+// Licensed under the MIT License <LICENSE or
+// http://opensource.org/licenses/MIT>. This file
+// may not be copied, modified, or distributed
+// except according to those terms.
+extern crate winreg;
+use std::io;
+use winreg::enums::*;
+use winreg::transaction::Transaction;
+use winreg::RegKey;
+
+fn main() -> io::Result<()> {
+    let t = Transaction::new()?;
+    let hkcu = RegKey::predef(HKEY_CURRENT_USER);
+    let (key, _disp) = hkcu.create_subkey_transacted("Software\\RustTransaction", &t)?;
+    key.set_value("TestQWORD", &1_234_567_891_011_121_314u64)?;
+    key.set_value("TestDWORD", &1_234_567_890u32)?;
+
+    println!("Commit transaction? [y/N]:");
+    let mut input = String::new();
+    io::stdin().read_line(&mut input)?;
+    input = input.trim_end().to_owned();
+    if input == "y" || input == "Y" {
+        t.commit()?;
+        println!("Transaction committed.");
+    } else {
+        // this is optional, if transaction wasn't committed,
+        // it will be rolled back on disposal
+        t.rollback()?;
+
+        println!("Transaction wasn't committed, it will be rolled back.");
+    }
+
+    Ok(())
+}