initial commit

MxlInstanceCache.hpp

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+#if MXL_MULTIVIEWER_ENABLE_MXL_SDK
+
+#include <mxl/flow.h>
+#include <mxl/mxl.h>
+#include <mxl/rational.h>
+#include <mxl/time.h>
+
+#endif
+
+struct MxlInstanceHandle
+{
+#if MXL_MULTIVIEWER_ENABLE_MXL_SDK
+    mxlInstance instance = nullptr;
+#endif
+    std::string domain;
+    int refCount = 0;
+};
+
+class MxlInstanceCache
+{
+public:
+    static MxlInstanceCache& instance();
+
+    MxlInstanceHandle* acquire(
+        const std::string& domain,
+        bool verbose = false);
+    void release(MxlInstanceHandle* handle);
+
+    MxlInstanceCache(const MxlInstanceCache&) = delete;
+    MxlInstanceCache& operator=(const MxlInstanceCache&) = delete;
+
+private:
+    MxlInstanceCache() = default;
+
+#if MXL_MULTIVIEWER_ENABLE_MXL_SDK
+    std::vector<MxlInstanceHandle> m_handles;
+#endif
+};