Initial release

engine/vendor/vst3sdk/public.sdk/source/main/moduleinit.cpp

@@ -0,0 +1,103 @@
+//-----------------------------------------------------------------------------
+// Project     : SDK Core
+//
+// Category    : Common Base Classes
+// Filename    : public.sdk/source/main/moduleinit.cpp
+// Created by  : Steinberg, 11/2020
+// Description : Module Initializers/Terminators
+//
+//-----------------------------------------------------------------------------
+// This file is part of a Steinberg SDK. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this distribution
+// and at www.steinberg.net/sdklicenses. 
+// No part of the SDK, including this file, may be copied, modified, propagated,
+// or distributed except according to the terms contained in the LICENSE file.
+//-----------------------------------------------------------------------------
+
+#include "moduleinit.h"
+#include <atomic>
+#include <vector>
+
+extern void* moduleHandle; // from dllmain.cpp, linuxmain.cpp or macmain.cpp
+
+//------------------------------------------------------------------------
+namespace Steinberg {
+namespace {
+
+//------------------------------------------------------------------------
+using FunctionVector = std::vector<std::pair<ModuleInitPriority, ModuleInitFunction>>;
+
+//------------------------------------------------------------------------
+FunctionVector& getInitFunctions ()
+{
+	static FunctionVector gInitVector;
+	return gInitVector;
+}
+
+//------------------------------------------------------------------------
+FunctionVector& getTermFunctions ()
+{
+	static FunctionVector gTermVector;
+	return gTermVector;
+}
+
+//------------------------------------------------------------------------
+void addInitFunction (ModuleInitFunction&& func, ModuleInitPriority prio)
+{
+	getInitFunctions ().emplace_back (prio, std::move (func));
+}
+
+//------------------------------------------------------------------------
+void addTerminateFunction (ModuleInitFunction&& func, ModuleInitPriority prio)
+{
+	getTermFunctions ().emplace_back (prio, std::move (func));
+}
+
+//------------------------------------------------------------------------
+void sortAndRunFunctions (FunctionVector& array)
+{
+	std::sort (array.begin (), array.end (),
+	           [] (const FunctionVector::value_type& v1, const FunctionVector::value_type& v2) {
+		           return v1.first < v2.first;
+	           });
+	for (auto& entry : array)
+		entry.second ();
+}
+
+//------------------------------------------------------------------------
+} // anonymous
+
+//------------------------------------------------------------------------
+ModuleInitializer::ModuleInitializer (ModuleInitFunction&& func, ModuleInitPriority prio)
+{
+	addInitFunction (std::move (func), prio);
+}
+
+//------------------------------------------------------------------------
+ModuleTerminator::ModuleTerminator (ModuleInitFunction&& func, ModuleInitPriority prio)
+{
+	addTerminateFunction (std::move (func), prio);
+}
+
+//------------------------------------------------------------------------
+PlatformModuleHandle getPlatformModuleHandle ()
+{
+	return reinterpret_cast<PlatformModuleHandle> (moduleHandle);
+}
+
+//------------------------------------------------------------------------
+} // Steinberg
+
+//------------------------------------------------------------------------
+bool InitModule ()
+{
+	Steinberg::sortAndRunFunctions (Steinberg::getInitFunctions ());
+	return true;
+}
+
+//------------------------------------------------------------------------
+bool DeinitModule ()
+{
+	Steinberg::sortAndRunFunctions (Steinberg::getTermFunctions ());
+	return true;
+}