intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 64 insertions, 0 deletions

diff --git a/util/system/mutex.h b/util/system/mutex.h
new file mode 100644
index 0000000000..032630d134
--- /dev/null
+++ b/util/system/mutex.h
@@ -0,0 +1,64 @@
+#pragma once
+
+#include "guard.h"
+#include "defaults.h"
+
+#include <util/generic/ptr.h>
+#include <util/generic/noncopyable.h>
+
+class TFakeMutex: public TNonCopyable {
+public:
+    inline void Acquire() noexcept {
+    }
+
+    inline bool TryAcquire() noexcept {
+        return true;
+    }
+
+    inline void Release() noexcept {
+    }
+
+    inline void lock() noexcept {
+        Acquire();
+    }
+
+    inline bool try_lock() noexcept {
+        return TryAcquire();
+    }
+
+    inline void unlock() noexcept {
+        Release();
+    }
+
+    ~TFakeMutex() = default;
+};
+
+class TMutex {
+public:
+    TMutex();
+    TMutex(TMutex&&);
+    ~TMutex();
+
+    void Acquire() noexcept;
+    bool TryAcquire() noexcept;
+    void Release() noexcept;
+
+    inline void lock() noexcept {
+        Acquire();
+    }
+
+    inline bool try_lock() noexcept {
+        return TryAcquire();
+    }
+
+    inline void unlock() noexcept {
+        Release();
+    }
+
+    //return opaque pointer to real handler
+    void* Handle() const noexcept;
+
+private:
+    class TImpl;
+    THolder<TImpl> Impl_;
+};