namespace simgrid {
namespace s4u {
-/** @defgroup s4u_actor Actors: simulation agents
- * @addtogroup S4U_API
- */
-
/** @addtogroup s4u_actor
*
* @tableofcontents
* An actor is located on a (simulated) host, but it can interact
* with the whole simulated platform.
*
+ * The s4u::Actor API is strongly inspired from the C++11 threads.
+ * The <a href="http://en.cppreference.com/w/cpp/thread">documentation
+ * of this standard</a> may help to understand the philosophy of the S4U
+ * Actors.
+ *
* (back to the @ref s4u_api "S4U documentation")
*
- * @section s4u_actor_def Defining an Actor
+ * @section s4u_actor_def Defining the skeleton of an Actor
*
- * The code of an actor (ie, the code that this actor will run when starting) the () operator.
- * In this code, your actor can use the functions of the simgrid::s4u::this_actor namespace to interact with the world.
+ * %As in the <a href="http://en.cppreference.com/w/cpp/thread">C++11
+ * standard</a>, you can declare the code of your actor either as a
+ * pure function or as an object. It is very simple with functions:
*
- * For example, a Worker actor should be declared as follows:
- *
- * \code{.cpp}
+ * @code{.cpp}
+ * // Declare the code of your worker
+ * void worker() {
+ * printf("Hello s4u");
+ * simgrid::s4u::this_actor::execute(5*1024*1024); // Get the worker executing a task of 5 MFlops
+ * };
+ *
+ * // From your main or from another actor, create your actor on the host Jupiter
+ * new Actor("worker", simgrid::s4u::Host::by_name("Jupiter"), worker);
+ * @endcode
+ *
+ * But some people prefer to encapsulate their actors in classes and
+ * objects to save the actor state in a cleanly dedicated location.
+ * The syntax is slightly more complicated, but not much.
+ *
+ * @code{.cpp}
* #include "s4u/actor.hpp"
*
+ * // Declare the class representing your actors
* class Worker {
+ * public:
* void operator()() { // Two pairs of () because this defines the method called ()
* printf("Hello s4u");
* simgrid::s4u::this_actor::execute(5*1024*1024); // Get the worker executing a task of 5 MFlops
* }
* };
- * \endcode
*
- * @section s4u_actor_new Creating a new instance of your Actor
+ * // From your main or from another actor, create your actor. Note the () after Worker
+ * new Actor("worker", simgrid::s4u::Host::by_name("Jupiter"), Worker());
+ * @endcode
+ *
+ * @section s4u_actor_flesh Fleshing your actor
*
- * // Then later in your main() function or so:
- * ...
- * new Actor("worker", host, Worker());
- * ...
+ * The body of your actor can use the functions of the
+ * simgrid::s4u::this_actor namespace to interact with the world.
+ * This namespace contains the methods to start new activities
+ * (executions, communications, etc), and to get informations about
+ * the currently running thread (its location, etc).
+ *
+ * Please refer to the @link simgrid::s4u::this_actor full API @endlink.
*
- * You can start your actors with simple @c new, for example from the @c main function,
- * but this is usually considered as a bad habit as it makes it harder to test your application
- * in differing settings. Instead, you are advised to use an XML deployment file using
- * s4u::Engine::loadDeployment() to start your actors.
+ *
+ * @section s4u_actor_deploy Using a deployment file
+ *
+ * @warning This is currently not working with S4U. Sorry about that.
+ *
+ * The best practice is to use an external deployment file as
+ * follows, because it makes it easier to test your application in
+ * differing settings. Load this file with
+ * s4u::Engine::loadDeployment() before the simulation starts.
+ * Refer to the @ref deployment section for more information.
+ *
+ * @code{.xml}
+ * <?xml version='1.0'?>
+ * <!DOCTYPE platform SYSTEM "http://simgrid.gforge.inria.fr/simgrid/simgrid.dtd">
+ * <platform version="4">
+ *
+ * <!-- Start a process called 'master' on the host called 'Tremblay' -->
+ * <process host="Tremblay" function="master">
+ * <!-- Here come the parameter that you want to feed to this instance of master -->
+ * <argument value="20"/> <!-- argv[1] -->
+ * <argument value="50000000"/> <!-- argv[2] -->
+ * <argument value="1000000"/> <!-- argv[3] -->
+ * <argument value="5"/> <!-- argv[4] -->
+ * </process>
+ *
+ * <!-- Start a process called 'worker' on the host called 'Jupiter' -->
+ * <process host="Jupiter" function="worker"/> <!-- Don't provide any parameter ->>
+ *
+ * </platform>
+ * @endcode
*
* @{
*/
static void killAll();
protected:
- smx_process_t getInferior() {return pimpl_;}
+ smx_process_t getInferior()
+ {
+ return pimpl_;
+ }
private:
smx_process_t pimpl_ = nullptr;
};
