git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

deps/juce/modules/juce_events/native/juce_osx_MessageQueue.h

@@ -0,0 +1,104 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2020 - Raw Material Software Limited
+
+   JUCE is an open source library subject to commercial or open-source
+   licensing.
+
+   The code included in this file is provided under the terms of the ISC license
+   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
+   To use, copy, modify, and/or distribute this software for any purpose with or
+   without fee is hereby granted provided that the above copyright notice and
+   this permission notice appear in all copies.
+
+   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
+   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
+   DISCLAIMED.
+
+  ==============================================================================
+*/
+
+namespace juce
+{
+
+//==============================================================================
+/* An internal message pump class used in OSX and iOS. */
+class MessageQueue
+{
+public:
+    MessageQueue()
+    {
+       #if JUCE_IOS
+        runLoop = CFRunLoopGetCurrent();
+       #else
+        runLoop = CFRunLoopGetMain();
+       #endif
+
+        CFRunLoopSourceContext sourceContext;
+        zerostruct (sourceContext); // (can't use "= { 0 }" on this object because it's typedef'ed as a C struct)
+        sourceContext.info = this;
+        sourceContext.perform = runLoopSourceCallback;
+        runLoopSource.reset (CFRunLoopSourceCreate (kCFAllocatorDefault, 1, &sourceContext));
+        CFRunLoopAddSource (runLoop, runLoopSource.get(), kCFRunLoopCommonModes);
+    }
+
+    ~MessageQueue() noexcept
+    {
+        CFRunLoopRemoveSource (runLoop, runLoopSource.get(), kCFRunLoopCommonModes);
+        CFRunLoopSourceInvalidate (runLoopSource.get());
+    }
+
+    void post (MessageManager::MessageBase* const message)
+    {
+        messages.add (message);
+        wakeUp();
+    }
+
+private:
+    ReferenceCountedArray<MessageManager::MessageBase, CriticalSection> messages;
+    CFRunLoopRef runLoop;
+    CFUniquePtr<CFRunLoopSourceRef> runLoopSource;
+
+    void wakeUp() noexcept
+    {
+        CFRunLoopSourceSignal (runLoopSource.get());
+        CFRunLoopWakeUp (runLoop);
+    }
+
+    bool deliverNextMessage()
+    {
+        const MessageManager::MessageBase::Ptr nextMessage (messages.removeAndReturn (0));
+
+        if (nextMessage == nullptr)
+            return false;
+
+        JUCE_AUTORELEASEPOOL
+        {
+            JUCE_TRY
+            {
+                nextMessage->messageCallback();
+            }
+            JUCE_CATCH_EXCEPTION
+        }
+
+        return true;
+    }
+
+    void runLoopCallback() noexcept
+    {
+        for (int i = 4; --i >= 0;)
+            if (! deliverNextMessage())
+                return;
+
+        wakeUp();
+    }
+
+    static void runLoopSourceCallback (void* info) noexcept
+    {
+        static_cast<MessageQueue*> (info)->runLoopCallback();
+    }
+};
+
+} // namespace juce