Initial commit

psc_global_include/Spin_Lock.cpp

@@ -0,0 +1,35 @@
+#include "Core/Base/global_include.h"
+#include <chrono>
+namespace Psc {
+    void Empty_Lock::lock() {}
+    void Empty_Lock::unlock() {}
+    bool Empty_Lock::tryLock() {
+        return true;
+    }
+    bool Empty_Lock::tryLock(int durationMillis) {
+        return true;
+    }
+    void Spin_Lock::lock() {
+        while (flag.test_and_set(std::memory_order_acquire)) {}
+    }
+    bool Spin_Lock::tryLock() {
+        return !flag.test_and_set(std::memory_order_acquire);
+    }
+    bool Spin_Lock::tryLock(int durationMillis) {
+        if (durationMillis == 0) {
+            return tryLock();
+        }
+        auto duration = std::chrono::milliseconds(durationMillis);
+        auto start = std::chrono::steady_clock::now();
+        while (std::chrono::steady_clock::now() - start < duration) {
+            if (tryLock()) {
+                return true;
+            }
+        }
+        return false;
+    }
+    void Spin_Lock::unlock() {
+        flag.clear(std::memory_order_release);
+    }
+
+} // namespace Psc