3 files changed, 66 insertions, 25 deletions

diff --git a/src/Bindings/Plugin.cpp b/src/Bindings/Plugin.cpp
index de82fbca2..3f1645188 100644
--- a/src/Bindings/Plugin.cpp
+++ b/src/Bindings/Plugin.cpp
@@ -45,7 +45,7 @@ void cPlugin::Unload(void)
 
 AString cPlugin::GetLocalFolder(void) const
 {
-	return std::string("Plugins/") + m_FolderName;
+	return "Plugins" + cFile::GetPathSeparator() + m_FolderName;
 }
 
 
diff --git a/src/Bindings/PluginManager.cpp b/src/Bindings/PluginManager.cpp
index 6593097dd..310a3968b 100644
--- a/src/Bindings/PluginManager.cpp
+++ b/src/Bindings/PluginManager.cpp
@@ -165,35 +165,54 @@ void cPluginManager::InsertDefaultPlugins(cSettingsRepositoryInterface & a_Setti
 
 void cPluginManager::Tick(float a_Dt)
 {
-	// Unload plugins that have been scheduled for unloading:
-	AStringVector PluginsToUnload;
+	decltype(m_PluginsNeedAction) PluginsNeedAction;
 	{
-		cCSLock Lock(m_CSPluginsToUnload);
-		std::swap(m_PluginsToUnload, PluginsToUnload);
+		cCSLock Lock(m_CSPluginsNeedAction);
+		std::swap(m_PluginsNeedAction, PluginsNeedAction);
 	}
-	for (auto & folder: PluginsToUnload)
+
+	// Process deferred actions:
+	for (auto & CurrentPlugin : PluginsNeedAction)
 	{
-		bool HasUnloaded = false;
-		bool HasFound = false;
-		for (auto & plugin: m_Plugins)
+		auto & Action = CurrentPlugin.first;
+		auto & Folder = CurrentPlugin.second;
+
+		bool WasLoaded = false;
+		bool WasFound = false;
+		for (auto & Plugin: m_Plugins)
 		{
-			if (plugin->GetFolderName() == folder)
+			if (Plugin->GetFolderName() == Folder)
 			{
-				HasFound = true;
-				if (plugin->IsLoaded())
+				WasFound = true;
+				if (Plugin->IsLoaded())
 				{
-					plugin->Unload();
-					HasUnloaded = true;
+					switch (Action)
+					{
+						case PluginAction::Reload :
+						{
+							// Reload plugins by unloading, then loading:
+							Plugin->Unload();
+							Plugin->Load();
+							break;
+						}
+						case PluginAction::Unload :
+						{
+							// Unload plugins that have been scheduled for unloading:
+							Plugin->Unload();
+							break;
+						}
+					}
+					WasLoaded = true;
 				}
 			}
 		}
-		if (!HasFound)
+		if (!WasFound)
 		{
-			LOG("Cannot unload plugin in folder \"%s\", there's no such plugin folder", folder.c_str());
+			LOG("Cannot act on plugin in folder \"%s\", there's no such plugin folder", Folder.c_str());
 		}
-		else if (!HasUnloaded)
+		else if (!WasLoaded)
 		{
-			LOG("Cannot unload plugin in folder \"%s\", it has not been loaded.", folder.c_str());
+			LOG("Cannot act on plugin in folder \"%s\", it has not been loaded.", Folder.c_str());
 		}
 	}  // for plugin - m_Plugins[]
 
@@ -1317,8 +1336,18 @@ void cPluginManager::UnloadPluginsNow()
 
 void cPluginManager::UnloadPlugin(const AString & a_PluginFolder)
 {
-	cCSLock Lock(m_CSPluginsToUnload);
-	m_PluginsToUnload.push_back(a_PluginFolder);
+	cCSLock Lock(m_CSPluginsNeedAction);
+	m_PluginsNeedAction.emplace_back(PluginAction::Unload, a_PluginFolder);
+}
+
+
+
+
+
+void cPluginManager::ReloadPlugin(const AString & a_PluginFolder)
+{
+	cCSLock Lock(m_CSPluginsNeedAction);
+	m_PluginsNeedAction.emplace_back(PluginAction::Reload, a_PluginFolder);
 }
 
 
diff --git a/src/Bindings/PluginManager.h b/src/Bindings/PluginManager.h
index 353950f18..8d75509a1 100644
--- a/src/Bindings/PluginManager.h
+++ b/src/Bindings/PluginManager.h
@@ -162,6 +162,14 @@ public:
 	} ;  // tolua_export
 
 
+	/** Defines the deferred actions needed for a plugin */
+	enum class PluginAction
+	{
+		Reload,
+		Unload
+	};
+
+
 	/** Used as a callback for enumerating bound commands */
 	class cCommandEnumCallback
 	{
@@ -303,6 +311,10 @@ public:
 	Note that this function returns before the plugin is unloaded, to avoid deadlocks. */
 	void UnloadPlugin(const AString & a_PluginFolder);  // tolua_export
 
+	/** Queues the specified plugin to be reloaded in the next call to Tick().
+	Note that this function returns before the plugin is unloaded, to avoid deadlocks. */
+	void ReloadPlugin(const AString & a_PluginFolder);  // tolua_export
+
 	/** Loads the plugin from the specified plugin folder.
 	Returns true if the plugin was loaded successfully or was already loaded before, false otherwise. */
 	bool LoadPlugin(const AString & a_PluginFolder);  // tolua_export
@@ -408,13 +420,13 @@ private:
 	typedef std::map<AString, cCommandReg> CommandMap;
 
 
-	/** FolderNames of plugins that should be unloaded.
-	The plugins will be unloaded within the next call to Tick(), to avoid multithreading issues.
-	Protected against multithreaded access by m_CSPluginsToUnload. */
-	AStringVector m_PluginsToUnload;
+	/** FolderNames of plugins that need an action (unload, reload, ...).
+	The plugins will be acted upon within the next call to Tick(), to avoid multithreading issues.
+	Protected against multithreaded access by m_CSPluginsNeedAction. */
+	std::vector<std::pair<PluginAction, AString>> m_PluginsNeedAction;
 
 	/** Protects m_PluginsToUnload against multithreaded access. */
-	mutable cCriticalSection m_CSPluginsToUnload;
+	mutable cCriticalSection m_CSPluginsNeedAction;
 
 	/** All plugins that have been found in the Plugins folder. */
 	cPluginPtrs m_Plugins;