Merge pull request #6282 from jherico/externals

Runtime plugins fixes

cmake/macros/CopyDllsBesideWindowsExecutable.cmake

@@ -18,12 +18,19 @@ macro(COPY_DLLS_BESIDE_WINDOWS_EXECUTABLE)
       @ONLY
     )
     
+    if (APPLE) 
+        set(PLUGIN_PATH "interface.app/Contents/MacOS/plugins")
+    else()
+        set(PLUGIN_PATH "plugins")
+    endif()
+    
     # add a post-build command to copy DLLs beside the executable
     add_custom_command(
       TARGET ${TARGET_NAME}
       POST_BUILD
       COMMAND ${CMAKE_COMMAND}
         -DBUNDLE_EXECUTABLE=$<TARGET_FILE:${TARGET_NAME}>
+        -DBUNDLE_PLUGIN_DIR=$<TARGET_FILE_DIR:${TARGET_NAME}>/${PLUGIN_PATH}
         -P ${CMAKE_CURRENT_BINARY_DIR}/FixupBundlePostBuild.cmake
     )
     

cmake/templates/FixupBundlePostBuild.cmake.in

@@ -41,4 +41,16 @@ function(copy_resolved_item_into_bundle resolved_item resolved_embedded_item)
 endfunction()
 
 message(STATUS "FIXUP_LIBS for fixup_bundle called for bundle ${BUNDLE_EXECUTABLE} are @FIXUP_LIBS@")
-fixup_bundle("${BUNDLE_EXECUTABLE}" "" "@FIXUP_LIBS@")
+
+message(STATUS "Scanning for plugins from ${BUNDLE_PLUGIN_DIR}")
+
+if (APPLE)
+    set(PLUGIN_EXTENSION "dylib")
+elseif (WIN32) 
+    set(PLUGIN_EXTENSION "dll")
+else() 
+    set(PLUGIN_EXTENSION "so")
+endif()
+
+file(GLOB RUNTIME_PLUGINS "${BUNDLE_PLUGIN_DIR}/*.${PLUGIN_EXTENSION}")
+fixup_bundle("${BUNDLE_EXECUTABLE}" "${RUNTIME_PLUGINS}" "@FIXUP_LIBS@")

interface/src/Menu.cpp

@@ -44,22 +44,11 @@
 
 #include "Menu.h"
 
-Menu* Menu::_instance = NULL;
+static const char* const MENU_PROPERTY_NAME = "com.highfidelity.Menu";
 
 Menu* Menu::getInstance() {
-    static QMutex menuInstanceMutex;
-
-    // lock the menu instance mutex to make sure we don't race and create two menus and crash
-    menuInstanceMutex.lock();
-
-    if (!_instance) {
-        qCDebug(interfaceapp, "First call to Menu::getInstance() - initing menu.");
-        _instance = new Menu();
-    }
-
-    menuInstanceMutex.unlock();
-
-    return _instance;
+    static Menu* instance = globalInstance<Menu>(MENU_PROPERTY_NAME);
+    return instance;
 }
 
 Menu::Menu() {

interface/src/Menu.h

@@ -57,6 +57,7 @@ private:
 class Menu : public QMenuBar {
     Q_OBJECT
 public:
+    Menu();
     static Menu* getInstance();
 
     void loadSettings();
@@ -103,9 +104,6 @@ public slots:
     void setIsOptionChecked(const QString& menuOption, bool isChecked);
 
 private:
-    static Menu* _instance;
-    Menu();
-
     typedef void(*settingsAction)(Settings&, QAction&);
     static void loadAction(Settings& settings, QAction& action);
     static void saveAction(Settings& settings, QAction& action);

libraries/shared/src/DependencyManager.cpp

@@ -11,8 +11,16 @@
 
 #include "DependencyManager.h"
 
-DependencyManager DependencyManager::_manager;
+#include "SharedUtil.h"
+#include "Finally.h"
+
+static const char* const DEPENDENCY_PROPERTY_NAME = "com.highfidelity.DependencyMananger";
+
+DependencyManager& DependencyManager::manager() {
+    static DependencyManager* instance = globalInstance<DependencyManager>(DEPENDENCY_PROPERTY_NAME);
+    return *instance;
+}
 
 QSharedPointer<Dependency>& DependencyManager::safeGet(size_t hashCode) {
     return _instanceHash[hashCode];
-}
+}

libraries/shared/src/DependencyManager.h

@@ -62,8 +62,8 @@ public:
     static void registerInheritance();
     
 private:
-    static DependencyManager _manager;
-    
+    static DependencyManager& manager();
+
     template<typename T>
     size_t getHashCode();
     
@@ -75,11 +75,11 @@ private:
 
 template <typename T>
 QSharedPointer<T> DependencyManager::get() {
-    static size_t hashCode = _manager.getHashCode<T>();
+    static size_t hashCode = manager().getHashCode<T>();
     static QWeakPointer<T> instance;
     
     if (instance.isNull()) {
-        instance = qSharedPointerCast<T>(_manager.safeGet(hashCode));
+        instance = qSharedPointerCast<T>(manager().safeGet(hashCode));
         
         if (instance.isNull()) {
             qWarning() << "DependencyManager::get(): No instance available for" << typeid(T).name();
@@ -91,9 +91,9 @@ QSharedPointer<T> DependencyManager::get() {
 
 template <typename T, typename ...Args>
 QSharedPointer<T> DependencyManager::set(Args&&... args) {
-    static size_t hashCode = _manager.getHashCode<T>();
+    static size_t hashCode = manager().getHashCode<T>();
 
-    QSharedPointer<Dependency>& instance = _manager.safeGet(hashCode);
+    QSharedPointer<Dependency>& instance = manager().safeGet(hashCode);
     instance.clear(); // Clear instance before creation of new one to avoid edge cases
     QSharedPointer<T> newInstance(new T(args...), &T::customDeleter);
     QSharedPointer<Dependency> storedInstance = qSharedPointerCast<Dependency>(newInstance);
@@ -104,9 +104,9 @@ QSharedPointer<T> DependencyManager::set(Args&&... args) {
 
 template <typename T, typename I, typename ...Args>
 QSharedPointer<T> DependencyManager::set(Args&&... args) {
-    static size_t hashCode = _manager.getHashCode<T>();
+    static size_t hashCode = manager().getHashCode<T>();
 
-    QSharedPointer<Dependency>& instance = _manager.safeGet(hashCode);
+    QSharedPointer<Dependency>& instance = manager().safeGet(hashCode);
     instance.clear(); // Clear instance before creation of new one to avoid edge cases
     QSharedPointer<T> newInstance(new I(args...), &I::customDeleter);
     QSharedPointer<Dependency> storedInstance = qSharedPointerCast<Dependency>(newInstance);
@@ -117,15 +117,15 @@ QSharedPointer<T> DependencyManager::set(Args&&... args) {
 
 template <typename T>
 void DependencyManager::destroy() {
-    static size_t hashCode = _manager.getHashCode<T>();
-    _manager.safeGet(hashCode).clear();
+    static size_t hashCode = manager().getHashCode<T>();
+    manager().safeGet(hashCode).clear();
 }
 
 template<typename Base, typename Derived>
 void DependencyManager::registerInheritance() {
     size_t baseHashCode = typeid(Base).hash_code();
     size_t derivedHashCode = typeid(Derived).hash_code();
-    _manager._inheritanceHash.insert(baseHashCode, derivedHashCode);
+    manager()._inheritanceHash.insert(baseHashCode, derivedHashCode);
 }
 
 template<typename T>

libraries/shared/src/SharedUtil.h

@@ -13,6 +13,7 @@
 #define hifi_SharedUtil_h
 
 #include <memory>
+#include <mutex>
 #include <math.h>
 #include <stdint.h>
 
@@ -20,7 +21,36 @@
 #include <unistd.h> // not on windows, not needed for mac or windows
 #endif
 
-#include <QDebug>
+#include <QtCore/QDebug>
+#include <QtCore/QCoreApplication>
+
+// Provides efficient access to a named global type.  By storing the value
+// in the QApplication by name we can implement the singleton pattern and 
+// have the single instance function across DLL boundaries.  
+template <typename T, typename... Args>
+T* globalInstance(const char* propertyName, Args&&... args) {
+    static std::unique_ptr<T> instancePtr;
+    static T* resultInstance { nullptr };
+    static std::mutex mutex;
+    if (!resultInstance) {
+        std::unique_lock<std::mutex> lock(mutex);
+        if (!resultInstance) {
+            auto variant = qApp->property(propertyName);
+            if (variant.isNull()) {
+                // Since we're building the object, store it in a shared_ptr so it's 
+                // destroyed by the destructor of the static instancePtr
+                instancePtr = std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+
+                void* voidInstance = &(*instancePtr);
+                variant = QVariant::fromValue(voidInstance);
+                qApp->setProperty(propertyName, variant);
+            }
+            void* returnedVoidInstance = variant.value<void*>();
+            resultInstance = static_cast<T*>(returnedVoidInstance);
+        }
+    }
+    return resultInstance;
+}
 
 const int BYTES_PER_COLOR = 3;
 const int BYTES_PER_FLAGS = 1;