1 files changed, 44 insertions, 0 deletions
diff --git a/faceapi/mutex.h b/faceapi/mutex.h
new file mode 100644
index 00000000..11aabafc
--- /dev/null
+++ b/faceapi/mutex.h
@@ -0,0 +1,44 @@
+#ifndef SM_API_TESTAPPCONSOLE_MUTEX_H
+#define SM_API_TESTAPPCONSOLE_MUTEX_H
+
+namespace sm
+{
+    namespace faceapi
+    {
+        namespace samplecode
+        {
+            // A very simple mutex class for sample code purposes. 
+            // It is recommended that you use the boost threads library.
+            class Mutex
+            {
+            public:
+                Mutex()
+                {
+                    if (!InitializeCriticalSectionAndSpinCount(&_cs,0x80000400)) 
+                    {
+                        throw std::runtime_error("Failed to initialize Mutex");
+                    }
+                }
+                ~Mutex()
+                {
+                    DeleteCriticalSection(&_cs);
+                }
+                void lock() const
+                {
+                    EnterCriticalSection(&_cs); 
+                }
+                void unlock() const
+                {
+                    LeaveCriticalSection(&_cs); 
+                }
+            private:
+                // Noncopyable
+                Mutex(const Mutex &);
+                Mutex &operator=(const Mutex &);
+            private:
+                mutable CRITICAL_SECTION _cs;
+            };
+        }
+    }
+}
+#endif