Implement a second veto on start. Activity must be assigned to a resource

[simgrid.git] / examples / s4u / exec-unassigned / s4u-exec-unassigned.cpp

diff --git a/examples/s4u/exec-unassigned/s4u-exec-unassigned.cpp b/examples/s4u/exec-unassigned/s4u-exec-unassigned.cpp
new file mode 100644 (file)
index 0000000..722609b
--- /dev/null
+++ b/examples/s4u/exec-unassigned/s4u-exec-unassigned.cpp
@@ -0,0 +1,40 @@
+/* Copyright (c) 2007-2021. 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"
+#include <vector>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
+
+static void worker()
+{
+  // Define an amount of work that should take 1 second to execute.
+  double computation_amount = simgrid::s4u::this_actor::get_host()->get_speed();
+
+  // Create an unassigned activity and start it
+  simgrid::s4u::ExecPtr exec =
+      simgrid::s4u::Exec::init()->set_flops_amount(computation_amount)->set_name("exec")->vetoable_start();
+
+  // Wait for a while
+  simgrid::s4u::this_actor::sleep_for(10);
+
+  // Assign the activity to the current host. This triggers its start, then waits for it completion.
+  exec->set_host(simgrid::s4u::Host::current())->wait();
+  XBT_INFO("Exec '%s' is complete", exec->get_cname());
+}
+
+int main(int argc, char* argv[])
+{
+  simgrid::s4u::Engine e(&argc, argv);
+  e.load_platform(argv[1]);
+
+  simgrid::s4u::Actor::create("worker", simgrid::s4u::Host::by_name("Fafard"), worker);
+
+  e.run();
+
+  XBT_INFO("Simulation time %g", e.get_clock());
+
+  return 0;
+}