metal: initial support

third_party/metal-cpp/Foundation/NSLock.hpp

@@ -0,0 +1,118 @@
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+//
+// Foundation/NSLock.hpp
+//
+// Copyright 2020-2023 Apple Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+
+#pragma once
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+#include "NSDefines.hpp"
+#include "NSObject.hpp"
+#include "NSPrivate.hpp"
+#include "NSTypes.hpp"
+#include "NSDate.hpp"
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+namespace NS
+{
+
+template <class _Class, class _Base = class Object>
+class Locking : public _Base
+{
+public:
+    void lock();
+    void unlock();
+};
+
+class Condition : public Locking<Condition>
+{
+public:
+    static Condition* alloc();
+
+    Condition*        init();
+
+    void              wait();
+    bool              waitUntilDate(Date* pLimit);
+    void              signal();
+    void              broadcast();
+};
+
+} // NS
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+template<class _Class, class _Base /* = NS::Object */>
+_NS_INLINE void NS::Locking<_Class, _Base>::lock()
+{
+    NS::Object::sendMessage<void>(this, _NS_PRIVATE_SEL(lock));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+template<class _Class, class _Base /* = NS::Object */>
+_NS_INLINE void NS::Locking<_Class, _Base>::unlock()
+{
+    NS::Object::sendMessage<void>(this, _NS_PRIVATE_SEL(unlock));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Condition* NS::Condition::alloc()
+{
+    return NS::Object::alloc<NS::Condition>(_NS_PRIVATE_CLS(NSCondition));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE NS::Condition* NS::Condition::init()
+{
+    return NS::Object::init<NS::Condition>();
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::Condition::wait()
+{
+    NS::Object::sendMessage<void>(this, _NS_PRIVATE_SEL(wait));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE bool NS::Condition::waitUntilDate(NS::Date* pLimit)
+{
+    return NS::Object::sendMessage<bool>(this, _NS_PRIVATE_SEL(waitUntilDate_), pLimit);
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::Condition::signal()
+{
+    NS::Object::sendMessage<void>(this, _NS_PRIVATE_SEL(signal));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------
+
+_NS_INLINE void NS::Condition::broadcast()
+{
+    NS::Object::sendMessage<void>(this, _NS_PRIVATE_SEL(broadcast));
+}
+
+//-------------------------------------------------------------------------------------------------------------------------------------------------------------