Merge branch 'master' into 'rework-energy-plugin'

[simgrid.git] / examples / s4u / io-disk-raw / s4u-io-disk-raw.cpp

diff --git a/examples/s4u/io-disk-raw/s4u-io-disk-raw.cpp b/examples/s4u/io-disk-raw/s4u-io-disk-raw.cpp
new file mode 100644 (file)
index 0000000..2152a10
--- /dev/null
+++ b/examples/s4u/io-disk-raw/s4u-io-disk-raw.cpp
@@ -0,0 +1,57 @@
+/* Copyright (c) 2017-2019. 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 <string>
+#include <unordered_map>
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(disk, "Messages specific for this simulation");
+
+static void host()
+{
+  /* - Display information on the disks mounted by the current host */
+  XBT_INFO("*** Storage info on %s ***", simgrid::s4u::Host::current()->get_cname());
+
+  /* - Retrieve all disks from current host */
+  std::vector<simgrid::s4u::Disk*> const& disk_list = simgrid::s4u::Host::current()->get_disks();
+
+  /* - For each disk mounted on host, display disk name and mount point */
+  for (auto disk : disk_list)
+    XBT_INFO("Disk name: %s", disk->get_cname());
+
+  /* - Write 400,000 bytes on Disk1 */
+  simgrid::s4u::Disk* disk = disk_list.front();
+  sg_size_t write          = disk->write(400000);
+  XBT_INFO("Wrote %llu bytes on '%s'", write, disk->get_cname());
+
+  /*  - Now read 200,000 bytes */
+  sg_size_t read = disk->read(200000);
+  XBT_INFO("Read %llu bytes on '%s'", read, disk->get_cname());
+
+  /* - Attach some user data to disk1 */
+  XBT_INFO("*** Get/set data for storage element: Disk1 ***");
+
+  std::string* data = static_cast<std::string*>(disk->get_data());
+
+  XBT_INFO("Get storage data: '%s'", data ? data->c_str() : "No user data");
+
+  disk->set_data(new std::string("Some user data"));
+  data = static_cast<std::string*>(disk->get_data());
+  XBT_INFO("Set and get data: '%s'", data->c_str());
+  delete data;
+}
+
+int main(int argc, char** argv)
+{
+  simgrid::s4u::Engine e(&argc, argv);
+  e.load_platform(argv[1]);
+
+  simgrid::s4u::Actor::create("", simgrid::s4u::Host::by_name("bob"), host);
+
+  e.run();
+  XBT_INFO("Simulated time: %g", simgrid::s4u::Engine::get_clock());
+
+  return 0;
+}