fix macOS build (following Projucer changes made in Windows, which removed /Applications/JUCE/modules from its headers). move JUCE headers under source control, so that Windows and macOS can both build against same version of JUCE. remove AUv3 target (I think it's an iOS thing, so it will never work with this macOS fluidsynth dylib).

modules/juce_core/threads/juce_TimeSliceThread.cpp

@@ -0,0 +1,184 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2017 - ROLI Ltd.
+
+   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
+{
+
+TimeSliceThread::TimeSliceThread (const String& name)  : Thread (name)
+{
+}
+
+TimeSliceThread::~TimeSliceThread()
+{
+    stopThread (2000);
+}
+
+//==============================================================================
+void TimeSliceThread::addTimeSliceClient (TimeSliceClient* const client, int millisecondsBeforeStarting)
+{
+    if (client != nullptr)
+    {
+        const ScopedLock sl (listLock);
+        client->nextCallTime = Time::getCurrentTime() + RelativeTime::milliseconds (millisecondsBeforeStarting);
+        clients.addIfNotAlreadyThere (client);
+        notify();
+    }
+}
+
+void TimeSliceThread::removeTimeSliceClient (TimeSliceClient* const client)
+{
+    const ScopedLock sl1 (listLock);
+
+    // if there's a chance we're in the middle of calling this client, we need to
+    // also lock the outer lock..
+    if (clientBeingCalled == client)
+    {
+        const ScopedUnlock ul (listLock); // unlock first to get the order right..
+
+        const ScopedLock sl2 (callbackLock);
+        const ScopedLock sl3 (listLock);
+
+        clients.removeFirstMatchingValue (client);
+    }
+    else
+    {
+        clients.removeFirstMatchingValue (client);
+    }
+}
+
+void TimeSliceThread::removeAllClients()
+{
+    for (;;)
+    {
+        if (auto* c = getClient (0))
+            removeTimeSliceClient (c);
+        else
+            break;
+    }
+}
+
+void TimeSliceThread::moveToFrontOfQueue (TimeSliceClient* client)
+{
+    const ScopedLock sl (listLock);
+
+    if (clients.contains (client))
+    {
+        client->nextCallTime = Time::getCurrentTime();
+        notify();
+    }
+}
+
+int TimeSliceThread::getNumClients() const
+{
+    return clients.size();
+}
+
+TimeSliceClient* TimeSliceThread::getClient (const int i) const
+{
+    const ScopedLock sl (listLock);
+    return clients[i];
+}
+
+//==============================================================================
+TimeSliceClient* TimeSliceThread::getNextClient (int index) const
+{
+    Time soonest;
+    TimeSliceClient* client = nullptr;
+
+    for (int i = clients.size(); --i >= 0;)
+    {
+        auto* c = clients.getUnchecked ((i + index) % clients.size());
+
+        if (client == nullptr || c->nextCallTime < soonest)
+        {
+            client = c;
+            soonest = c->nextCallTime;
+        }
+    }
+
+    return client;
+}
+
+void TimeSliceThread::run()
+{
+    int index = 0;
+
+    while (! threadShouldExit())
+    {
+        int timeToWait = 500;
+
+        {
+            Time nextClientTime;
+            int numClients = 0;
+
+            {
+                const ScopedLock sl2 (listLock);
+
+                numClients = clients.size();
+                index = numClients > 0 ? ((index + 1) % numClients) : 0;
+
+                if (auto* firstClient = getNextClient (index))
+                    nextClientTime = firstClient->nextCallTime;
+            }
+
+            if (numClients > 0)
+            {
+                auto now = Time::getCurrentTime();
+
+                if (nextClientTime > now)
+                {
+                    timeToWait = (int) jmin ((int64) 500, (nextClientTime - now).inMilliseconds());
+                }
+                else
+                {
+                    timeToWait = index == 0 ? 1 : 0;
+
+                    const ScopedLock sl (callbackLock);
+
+                    {
+                        const ScopedLock sl2 (listLock);
+                        clientBeingCalled = getNextClient (index);
+                    }
+
+                    if (clientBeingCalled != nullptr)
+                    {
+                        const int msUntilNextCall = clientBeingCalled->useTimeSlice();
+
+                        const ScopedLock sl2 (listLock);
+
+                        if (msUntilNextCall >= 0)
+                            clientBeingCalled->nextCallTime = now + RelativeTime::milliseconds (msUntilNextCall);
+                        else
+                            clients.removeFirstMatchingValue (clientBeingCalled);
+
+                        clientBeingCalled = nullptr;
+                    }
+                }
+            }
+        }
+
+        if (timeToWait > 0)
+            wait (timeToWait);
+    }
+}
+
+} // namespace juce