From f532667d936500f50447d63333544f603ec06137 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Thu, 10 Jun 2021 11:35:29 +0800
Subject: import(life): ...

---
 .../MutexAvoidDataRaceDemo.cpp                     | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 works/life/operating-system-experiment/MutexAvoidDataRaceDemo.cpp

(limited to 'works/life/operating-system-experiment/MutexAvoidDataRaceDemo.cpp')

diff --git a/works/life/operating-system-experiment/MutexAvoidDataRaceDemo.cpp b/works/life/operating-system-experiment/MutexAvoidDataRaceDemo.cpp
new file mode 100644
index 0000000..81a7aa1
--- /dev/null
+++ b/works/life/operating-system-experiment/MutexAvoidDataRaceDemo.cpp
@@ -0,0 +1,42 @@
+#include "Mutex.h"
+#include "Thread.h"
+
+#include <iostream>
+
+int main() {
+
+  unsigned data = 0;
+  cru::Mutex mutex;
+  mutex.Lock();
+
+  cru::Thread t1([&data, &mutex] {
+    for (int i = 0; i < 100000; i++) {
+      mutex.Lock();
+      data += 10;
+      //std::cout << "Data is now: " << data << '\n';
+      mutex.Unlock();
+    }
+  });
+
+  cru::Thread t2([&data, &mutex] {
+    for (int i = 0; i < 100000; i++) {
+      mutex.Lock();
+      data += 10;
+      //std::cout << "Data is now: " << data << '\n';
+      mutex.Unlock();
+    }
+  });
+
+  std::cout << "Created thread: " << t1.GetNativeID() << '\n';
+  std::cout << "Created thread: " << t2.GetNativeID() << '\n';
+
+  mutex.Unlock();
+
+  t1.Join();
+  t2.Join();
+
+  std::cout << "Answer is " << data << ", which is "
+            << (data == 2000000 ? "correct" : "false") << '\n';
+
+  return 0;
+}
-- 
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