X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/331a25db7c5afa9a51e7c15b84dd9c5e99960450..ffd3399be33c589c5a5e720958f6351fdf9b0706:/src/cxx/MsgApplicationHandler.cxx

diff --git a/src/cxx/MsgApplicationHandler.cxx b/src/cxx/MsgApplicationHandler.cxx
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+++ b/src/cxx/MsgApplicationHandler.cxx
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+/*
+ * ApplicationHandler.cxx
+ *
+ * Copyright 2006,2007 Martin Quinson, Malek Cherier           
+ * All right reserved. 
+ *
+ * This program is free software; you can redistribute 
+ * it and/or modify it under the terms of the license 
+ *(GNU LGPL) which comes with this package. 
+ *
+ */
+ 
+ /* ApplicationHandler member functions implementation.
+  */  
+
+
+#include <Object.hpp>
+#include <MsgApplicationHandler.hpp>
+
+#include <MsgProcess.hpp>
+#include <MsgHost.hpp>
+
+
+
+
+
+#include <stdlib.h>
+
+#include <surf/surfxml_parse.h>
+#include <xbt/sysdep.h>
+
+
+namespace SimGrid
+{
+	namespace Msg
+	{
+
+		ApplicationHandler::ProcessFactory* ApplicationHandler::processFactory = NULL;
+			
+		// Desable the default constructor, the copy constructor , the assignement operator
+		// and the destructor of this class. Assume that this class is static.
+		
+		// Default constructor.
+		ApplicationHandler::ApplicationHandler()
+		{
+			// NOTHING TODO
+		}
+		
+		// Copy constructor.
+		ApplicationHandler::ApplicationHandler(const ApplicationHandler& rApplicationHandler)
+		{
+			// NOTHING TODO
+		}
+		
+		// Destructor
+		ApplicationHandler::~ApplicationHandler()
+		{
+			// NOTHING TODO
+		}
+		
+		// Assignement operator.
+		const ApplicationHandler& ApplicationHandler::operator = (const ApplicationHandler& rApplicationHandler)
+		{
+			return *this;
+		}
+		
+		void ApplicationHandler::onStartDocument(void)
+		{
+			// instanciate the factory at the begining of the parsing
+			processFactory = new ProcessFactory();	
+		}
+		
+		void ApplicationHandler::onEndDocument(void)
+		{
+			// release the handler at the end of the parsing.
+			if(processFactory)
+				delete processFactory;
+		}
+			
+		void ApplicationHandler::onBeginProcess(void)
+		{
+			// set the process identity at the begin of the xml process element.
+			processFactory->setProcessIdentity(A_surfxml_process_host, A_surfxml_process_function);
+		}		
+		
+		void ApplicationHandler::onProcessArg(void)
+		{
+			// register the argument of the current xml process element.
+			processFactory->registerProcessArg(A_surfxml_argument_value);
+		}
+		
+		void ApplicationHandler::OnProperty(void)
+		{
+			// set the property of the current xml process element.
+			 processFactory->setProperty(A_surfxml_prop_id, A_surfxml_prop_value);
+		}
+		
+		void ApplicationHandler::onEndProcess(void)
+		{
+			// at the end of the xml process element create the wrapper process (of the native Msg process)
+			processFactory->createProcess();
+		}
+		
+		/////////////////////////////////////////////////////////////////////////////////////////////////
+		// Process factory connected member functions
+		
+		ApplicationHandler::ProcessFactory::ProcessFactory() 
+		{
+			this->args = xbt_dynar_new(sizeof(char*),ApplicationHandler::ProcessFactory::freeCstr);
+			this->properties = NULL; // TODO instanciate the dictionary
+			this->hostName = NULL;
+			this->function = NULL;
+		} 
+
+		ApplicationHandler::ProcessFactory::~ProcessFactory()
+		{
+			xbt_dynar_free(&(this->args));
+		}
+		
+		// create the cxx process wrapper.
+		void ApplicationHandler::ProcessFactory::createProcess() 
+		throw (ClassNotFoundException, HostNotFoundException)
+		{
+			Host host;
+			Class* c;
+			Process* process;
+			
+			// try to dynamicaly create an instance of the process from its name (which is specified by the element function
+			// in the xml application file.
+			// if this static method fails, it throws an exception of the class ClassNotFoundException
+			c = Class::fromName(this->function);
+			process = reinterpret_cast<Process*>(c->createObject());
+			
+			// try to retrieve the host of the process from its name
+			// if this method fails, it throws an exception of the class HostNotFoundException
+			host = Host::getByName(this->hostName);	
+			
+			// build the list of the arguments of the newly created process.
+			int argc = xbt_dynar_length(this->args);
+			
+			char** argv = (char**)calloc(argc, sizeof(char*));
+			
+			for(int i = argc -1; i >= 0; i--)
+				xbt_dynar_pop(this->args, &(argv[i]));
+			
+			// finaly create the process (for more detail on the process creation see Process::create()
+			process->create(host, this->function , argc, argv);
+			
+		  	// TODO add the properties of the process
+			/*process->properties = this->properties;
+			this->properties = new Properties();*/
+		}
+			
+		void ApplicationHandler::ProcessFactory::setProcessIdentity(const char* hostName, const char* function) 
+		{
+			this->hostName = hostName;
+			this->function = function;
+		
+			/*if (!this->args->empty())
+				this->args->clear();
+		
+			if(!this->properties->empty())
+				this->properties->clear();*/
+		}
+		
+		// callback function used by the dynamic array to cleanup all of its elements.
+		void ApplicationHandler::ProcessFactory::freeCstr(void* cstr)
+		{
+			free(*(void**)cstr);
+		}
+		
+		void ApplicationHandler::ProcessFactory::registerProcessArg(const char* arg) 
+		{
+			char* cstr = _strdup(arg);
+			xbt_dynar_push(this->args, &cstr);
+		}
+		
+		void ApplicationHandler::ProcessFactory::setProperty(const char* id, const char* value)
+		{
+			// TODO implement this function;	
+		}
+		
+		const char* ApplicationHandler::ProcessFactory::getHostName(void)
+		{
+			return this->hostName;
+		}
+
+	} // namespace Msg
+} // namespace SimGrid
+