mv examples/s4u examples/cpp

[simgrid.git] / examples / cpp / actor-kill / s4u-actor-kill.cpp

diff --git a/examples/cpp/actor-kill/s4u-actor-kill.cpp b/examples/cpp/actor-kill/s4u-actor-kill.cpp
new file mode 100644 (file)
index 0000000..9b8d86e
--- /dev/null
+++ b/examples/cpp/actor-kill/s4u-actor-kill.cpp
@@ -0,0 +1,75 @@
+/* Copyright (c) 2017-2021. 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. */
+
+#include <simgrid/s4u.hpp>
+namespace sg4 = simgrid::s4u;
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_actor_kill, "Messages specific for this s4u example");
+
+static void victimA_fun()
+{
+  sg4::this_actor::on_exit([](bool /*failed*/) { XBT_INFO("I have been killed!"); });
+  XBT_INFO("Hello!");
+  XBT_INFO("Suspending myself");
+  sg4::this_actor::suspend();          /* - Start by suspending itself */
+  XBT_INFO("OK, OK. Let's work");      /* - Then is resumed and start to execute some flops */
+  sg4::this_actor::execute(1e9);
+  XBT_INFO("Bye!"); /* - But will never reach the end of it */
+}
+
+static void victimB_fun()
+{
+  XBT_INFO("Terminate before being killed");
+}
+
+static void killer()
+{
+  XBT_INFO("Hello!"); /* - First start a victim actor */
+  sg4::ActorPtr victimA = sg4::Actor::create("victim A", sg4::Host::by_name("Fafard"), victimA_fun);
+  sg4::ActorPtr victimB = sg4::Actor::create("victim B", sg4::Host::by_name("Jupiter"), victimB_fun);
+  sg4::this_actor::sleep_for(10); /* - Wait for 10 seconds */
+
+  XBT_INFO("Resume the victim A"); /* - Resume it from its suspended state */
+  victimA->resume();
+  sg4::this_actor::sleep_for(2);
+
+  XBT_INFO("Kill the victim A"); /* - and then kill it */
+  sg4::Actor::by_pid(victimA->get_pid())->kill(); // You can retrieve an actor from its PID (and then kill it)
+
+  sg4::this_actor::sleep_for(1);
+
+  XBT_INFO("Kill victimB, even if it's already dead"); /* that's a no-op, there is no zombies in SimGrid */
+  victimB->kill(); // the actor is automatically garbage-collected after this last reference
+
+  sg4::this_actor::sleep_for(1);
+
+  XBT_INFO("Start a new actor, and kill it right away");
+  sg4::ActorPtr victimC = sg4::Actor::create("victim C", sg4::Host::by_name("Jupiter"), victimA_fun);
+  victimC->kill();
+
+  sg4::this_actor::sleep_for(1);
+
+  XBT_INFO("Killing everybody but myself");
+  sg4::Actor::kill_all();
+
+  XBT_INFO("OK, goodbye now. I commit a suicide.");
+  sg4::this_actor::exit();
+
+  XBT_INFO("This line never gets displayed: I'm already dead since the previous line.");
+}
+
+int main(int argc, char* argv[])
+{
+  sg4::Engine e(&argc, argv);
+  xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s ../platforms/small_platform.xml\n", argv[0], argv[0]);
+
+  e.load_platform(argv[1]); /* - Load the platform description */
+  /* - Create and deploy killer actor, that will create the victim actors  */
+  sg4::Actor::create("killer", sg4::Host::by_name("Tremblay"), killer);
+
+  e.run(); /* - Run the simulation */
+
+  return 0;
+}