1 /* Copyright (c) 2006-2017. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include <unordered_map>
9 #include "simgrid/s4u.hpp"
11 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "a sample log category");
15 void show_info(std::unordered_map<std::string, simgrid::s4u::Storage*> const& mounts)
17 XBT_INFO("Storage info on %s:", simgrid::s4u::Host::current()->getCname());
19 for (auto const& kv : mounts) {
20 std::string mountpoint = kv.first;
21 simgrid::s4u::Storage* storage = kv.second;
23 // Retrieve disk's information
24 sg_size_t free_size = storage->getSizeFree();
25 sg_size_t used_size = storage->getSizeUsed();
26 sg_size_t size = storage->getSize();
28 XBT_INFO(" %s (%s) Used: %llu; Free: %llu; Total: %llu.", storage->getCname(), mountpoint.c_str(), used_size,
34 std::unordered_map<std::string, simgrid::s4u::Storage*> const& mounts =
35 simgrid::s4u::Host::current()->getMountedStorages();
39 // Open an non-existing file to create it
40 std::string filename = "/home/tmp/data.txt";
41 simgrid::s4u::File* file = new simgrid::s4u::File(filename, nullptr);
43 sg_size_t write = file->write(200000); // Write 200,000 bytes
44 XBT_INFO("Create a %llu bytes file named '%s' on /sd1", write, filename.c_str());
46 // check that sizes have changed
49 // Now retrieve the size of created file and read it completely
50 const sg_size_t file_size = file->size();
52 const sg_size_t read = file->read(file_size);
53 XBT_INFO("Read %llu bytes on %s", read, filename.c_str());
55 // Now write 100,000 bytes in tmp/data.txt
56 write = file->write(100000); // Write 100,000 bytes
57 XBT_INFO("Write %llu bytes on %s", write, filename.c_str());
59 simgrid::s4u::Storage* storage = simgrid::s4u::Storage::byName("Disk4");
61 // Now rename file from ./tmp/data.txt to ./tmp/simgrid.readme
62 std::string newpath = "/home/tmp/simgrid.readme";
63 XBT_INFO("Move '%s' to '%s'", file->getPath(), newpath.c_str());
66 // Test attaching some user data to the file
67 file->setUserdata(new std::string("777"));
68 std::string* file_data = static_cast<std::string*>(file->getUserdata());
69 XBT_INFO("User data attached to the file: %s", file_data->c_str());
75 // Now attach some user data to disk1
76 XBT_INFO("Get/set data for storage element: %s", storage->getCname());
77 XBT_INFO(" Uninitialized storage data: '%s'", static_cast<char*>(storage->getUserdata()));
79 storage->setUserdata(new std::string("Some user data"));
80 std::string* storage_data = static_cast<std::string*>(storage->getUserdata());
81 XBT_INFO(" Set and get data: '%s'", storage_data->c_str());
86 int main(int argc, char **argv)
88 simgrid::s4u::Engine e(&argc, argv);
89 e.loadPlatform("../../platforms/storage/storage.xml");
90 simgrid::s4u::Actor::createActor("host", simgrid::s4u::Host::by_name("denise"), MyHost());