From f4ddfbb2aa8dd640ccd8a6572b2a636bde7b3ef1 Mon Sep 17 00:00:00 2001
From: Julio Biason <julio.biason@diaxcapital.com.br>
Date: Wed, 6 Apr 2022 11:28:34 -0300
Subject: [PATCH] Simple test for RwLock

---
 rwlocktest/Cargo.lock  |  7 +++++++
 rwlocktest/Cargo.toml  |  8 ++++++++
 rwlocktest/src/main.rs | 31 +++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 rwlocktest/Cargo.lock
 create mode 100644 rwlocktest/Cargo.toml
 create mode 100644 rwlocktest/src/main.rs

diff --git a/rwlocktest/Cargo.lock b/rwlocktest/Cargo.lock
new file mode 100644
index 0000000..8ecf37c
--- /dev/null
+++ b/rwlocktest/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rwlocktest"
+version = "0.1.0"
diff --git a/rwlocktest/Cargo.toml b/rwlocktest/Cargo.toml
new file mode 100644
index 0000000..71531e2
--- /dev/null
+++ b/rwlocktest/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "rwlocktest"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/rwlocktest/src/main.rs b/rwlocktest/src/main.rs
new file mode 100644
index 0000000..3dc7ed0
--- /dev/null
+++ b/rwlocktest/src/main.rs
@@ -0,0 +1,31 @@
+use std::sync::RwLock;
+
+struct Holder {
+    content: RwLock<String>,
+}
+
+impl Holder {
+    fn new() -> Self {
+        Self {
+            content: RwLock::new(String::from("hello")),
+        }
+    }
+
+    fn change(&self, content: &str) {
+        let mut original = self.content.write().unwrap();
+        *original = content.into();
+    }
+
+    fn content(&self) -> String {
+        let lock = self.content.read().unwrap();
+        String::from(&*lock)
+    }
+}
+
+fn main() {
+    let content = Holder::new();
+    println!("Content: {}", content.content());
+
+    content.change("Hello there");
+    println!("Content: {}", content.content());
+}