Various fixups and cosmetics in the doc

[simgrid.git] / docs / source / tuto_mc / ndet-receive-s4u.cpp

diff --git a/docs/source/tuto_mc/ndet-receive-s4u.cpp b/docs/source/tuto_mc/ndet-receive-s4u.cpp
new file mode 100644 (file)
index 0000000..061ae71
--- /dev/null
+++ b/docs/source/tuto_mc/ndet-receive-s4u.cpp
@@ -0,0 +1,56 @@
+/* Copyright (c) 2010-2021. 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. */
+
+/******************** Non-deterministic message ordering  *********************/
+/* Server assumes a fixed order in the reception of messages from its clients */
+/* which is incorrect because the message ordering is non-deterministic       */
+/******************************************************************************/
+
+#include <simgrid/s4u.hpp>
+namespace sg4 = simgrid::s4u;
+
+constexpr int N = 3;
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(example, "this example");
+
+static void server()
+{
+  auto mb = sg4::Mailbox::by_name("mymailbox");
+  int value_got = -1;
+  for (int count = 0; count < N; count++) {
+    int *received = mb->get<int>();
+    value_got = *received;
+    delete received;
+  }
+  xbt_assert(value_got == 3);
+
+  XBT_INFO("OK");
+}
+
+static void client(int id)
+{
+  auto* payload = new int(id);
+  XBT_INFO("Sending %d", id);
+  sg4::Mailbox::by_name("mymailbox")->put(payload, 10000);
+  XBT_INFO("Sent!");
+}
+
+int main(int argc, char* argv[])
+{
+  sg4::Engine e(&argc, argv);
+
+  std::string platform_file = "small_platform.xml";
+  if (argc > 1)
+    platform_file = argv[1];
+  e.load_platform(platform_file);
+
+  sg4::Actor::create("server", sg4::Host::by_name("Tremblay"), server);
+  sg4::Actor::create("client", sg4::Host::by_name("Jupiter"),  client, 1);
+  sg4::Actor::create("client", sg4::Host::by_name("Bourassa"), client, 2);
+  sg4::Actor::create("client", sg4::Host::by_name("Ginette"),  client, 3);
+
+  e.run();
+  return 0;
+}