-/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2006-2021. The SimGrid Team. All rights 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. */
*
* The first step is to declare the code of your actors (what they do exactly does not matter to this example) and then
* you ask SimGrid to start your actors. There is three ways of doing so:
- * - Directly, by instantiating your actor as paramter to Actor::create()
+ * - Directly, by instantiating your actor as parameter to Actor::create()
* - By first registering your actors before instantiating it;
* - Through the deployment file.
*
#include <xbt/log.h>
// This declares a logging channel so that XBT_INFO can be used later
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor_create, "The logging channel used in this example");
+XBT_LOG_NEW_DEFAULT_CATEGORY(actor_create, "The logging channel used in this example");
/* Our first class of actors is simply implemented with a function.
* As every CSG actors, its parameters are in a vector of string (argc/argv), and it does not return anything.
*
* One 'receiver' actor is instantiated within the simulation later in this file.
*/
-static int receiver(int argc, char** argv)
+static void receiver(int argc, char** argv)
{
xbt_assert(argc == 2, "This actor expects a single argument: the mailbox on which to get messages");
sg_mailbox_t mailbox = sg_mailbox_by_name(argv[1]);
- XBT_INFO("Hello s4u, I'm ready to get any message you'd want on %s", argv[1]);
+ XBT_INFO("Hello, I'm ready to get any message you'd want on %s", argv[1]);
- const char* msg1 = sg_mailbox_get(mailbox);
- const char* msg2 = sg_mailbox_get(mailbox);
- const char* msg3 = sg_mailbox_get(mailbox);
+ char* msg1 = sg_mailbox_get(mailbox);
+ char* msg2 = sg_mailbox_get(mailbox);
+ char* msg3 = sg_mailbox_get(mailbox);
XBT_INFO("I received '%s', '%s' and '%s'", msg1, msg2, msg3);
+ xbt_free(msg1);
+ xbt_free(msg2);
+ xbt_free(msg3);
XBT_INFO("I'm done. See you.");
- return 0;
}
/* Our second class of actors, in charge of sending stuff */
-static int sender(int argc, char** argv)
+static void sender(int argc, char** argv)
{
xbt_assert(argc == 3, "Actor 'sender' requires 2 parameters (mailbox and data to send), but got only %d", argc - 1);
- XBT_INFO("Hello s4u, I have something to send");
- sg_mailbox_t mailbox = sg_mailbox_by_name(argv[1]);
- char* sent_data = argv[2];
+ XBT_INFO("Hello, I have something to send");
+ const char* sent_data = argv[1];
+ sg_mailbox_t mailbox = sg_mailbox_by_name(argv[2]);
sg_mailbox_put(mailbox, xbt_strdup(sent_data), strlen(sent_data));
XBT_INFO("I'm done. See you.");
- return 0;
+}
+
+static void forwarder(int argc, char** argv)
+{
+ xbt_assert(argc >= 3, "Actor forwarder requires 2 parameters, but got only %d", argc - 1);
+ sg_mailbox_t mailbox_in = sg_mailbox_by_name(argv[1]);
+ sg_mailbox_t mailbox_out = sg_mailbox_by_name(argv[2]);
+ char* msg = sg_mailbox_get(mailbox_in);
+ XBT_INFO("Forward '%s'.", msg);
+ sg_mailbox_put(mailbox_out, msg, strlen(msg));
}
/* Here comes the main function of your program */
*
* The easiest way to do so is to implement the behavior of your actor in a single function,
* as we do here for the receiver actors. This function can take any kind of parameters, as
- * long as the last parameters of Actor::create() match what your function expects.
+ * long as the last parameters of sg_actor_create() or sg_actor_start() match what your function expects.
*/
int recv_argc = 2;
const char* recv_argv[] = {"receiver", "mb42", NULL};
- sg_actor_t recv = sg_actor_init("receiver", sg_host_by_name("Fafard"));
- sg_actor_start(recv, receiver, recv_argc, recv_argv);
+ sg_actor_create("receiver", sg_host_by_name("Fafard"), receiver, recv_argc, (char**)recv_argv);
+
+ int sender1_argc = 3;
+ const char* sender1_argv[] = {"sender", "GaBuZoMeu", "mb42", NULL};
+ sg_actor_create("sender1", sg_host_by_name("Tremblay"), sender, sender1_argc, (char**)sender1_argv);
+
+ int sender2_argc = 3;
+ const char* sender2_argv[] = {"sender", "GloubiBoulga", "mb42", NULL};
+ sg_actor_t sender2 = sg_actor_init("sender2", sg_host_by_name("Jupiter"));
+ sg_actor_start(sender2, sender, sender2_argc, (char**)sender2_argv);
/* But starting actors directly is considered as a bad experimental habit, since it ties the code
* you want to test with the experimental scenario. Starting your actors from an external deployment
* file in XML ensures that you can test your code in several scenarios without changing the code itself.
*
* For that, you first need to register your function or your actor as follows.
- * Actor classes must have a (std::vector<std::string>) constructor,
- * and actor functions must be of type int(*)(int argc, char**argv). */
- simgrid_register_function("sender", &sender);
+ * actor functions must be of type void(*)(int argc, char**argv). */
+ simgrid_register_function("sender", sender);
+ simgrid_register_function("forwarder", forwarder);
/* Once actors and functions are registered, just load the deployment file */
- simgrid_load_deployment("csg-actor-create_d.xml");
+ simgrid_load_deployment("actor-create_d.xml");
/* Once every actors are started in the engine, the simulation can start */
simgrid_run();
