added _free function again due problems while freeing memory

git-svn-id: https://svn.kvirc.de/svn/trunk/kvirc@529 17fca916-40b9-46aa-a4ea-0a15b648b75c

1 files changed, 34 insertions, 1 deletions

diff --git a/src/modules/system/plugin.cpp b/src/modules/system/plugin.cpp
index ba18ade47..9d91c12b4 100644
--- a/src/modules/system/plugin.cpp
+++ b/src/modules/system/plugin.cpp
@@ -47,6 +47,16 @@
 	@body:
 		TODO
 		[b]Exported functions by dll[/b][br]
+		[br]_free function (needed)[br]
+		[example]
+		int _free(void * p)[br]
+		{[br]
+			// Always free the memory here![br]
+			free(p);[br]
+			return 0;[br]
+		}[br]
+		[/example]
+		
 		[br]_load function (optional)[br]
 		[example]
 		int _load()[br]
@@ -105,6 +115,20 @@ KviPlugin* KviPlugin::load(const QString& szFileName)
 	return pPlugin;
 }
 
+bool KviPlugin::pfree(char * pBuffer)
+{
+	plugin_free function_free;
+	
+	function_free = (plugin_free)kvi_library_symbol(m_Plugin,"_free");
+	if (function_free)
+	{
+		//TODO: THREAD
+		if(pBuffer) function_free(pBuffer);
+		return true;
+	}
+	return false;
+}
+
 bool KviPlugin::unload(bool forced)
 {
 	plugin_unload function_unload;
@@ -264,7 +288,16 @@ bool KviPluginManager::pluginCall(KviKvsModuleFunctionCall *c)
 	//Clean up
 	if(pArgvBuffer) free(pArgvBuffer);
 	if(ppArgv) free(ppArgv);
-	if(returnBuffer) free(returnBuffer);
+	if(returnBuffer)
+	{
+		if (!plugin->pfree(returnBuffer))
+		{
+			c->warning(__tr2qs("The plugin has no function to free memory. Can result in Memory Leaks!"));
+		}
+	}
+
+	
+
 	return true;
 }