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 XBT_INFO(" %s (%s) Used: %llu; Free: %llu; Total: %llu.", storage->getCname(), mountpoint.c_str(),
25 sg_storage_get_size_used(storage), sg_storage_get_size_free(storage), sg_storage_get_size(storage));
30 std::unordered_map<std::string, simgrid::s4u::Storage*> const& mounts =
31 simgrid::s4u::Host::current()->getMountedStorages();
35 // Open an non-existing file to create it
36 std::string filename = "/home/tmp/data.txt";
37 simgrid::s4u::File* file = new simgrid::s4u::File(filename, nullptr);
39 sg_size_t write = file->write(200000); // Write 200,000 bytes
40 XBT_INFO("Create a %llu bytes file named '%s' on /sd1", write, filename.c_str());
42 // check that sizes have changed
45 // Now retrieve the size of created file and read it completely
46 const sg_size_t file_size = file->size();
48 const sg_size_t read = file->read(file_size);
49 XBT_INFO("Read %llu bytes on %s", read, filename.c_str());
51 // Now write 100,000 bytes in tmp/data.txt
52 write = file->write(100000); // Write 100,000 bytes
53 XBT_INFO("Write %llu bytes on %s", write, filename.c_str());
55 simgrid::s4u::Storage* storage = simgrid::s4u::Storage::byName("Disk4");
57 // Now rename file from ./tmp/data.txt to ./tmp/simgrid.readme
58 std::string newpath = "/home/tmp/simgrid.readme";
59 XBT_INFO("Move '%s' to '%s'", file->getPath(), newpath.c_str());
62 // Test attaching some user data to the file
63 file->setUserdata(new std::string("777"));
64 std::string* file_data = static_cast<std::string*>(file->getUserdata());
65 XBT_INFO("User data attached to the file: %s", file_data->c_str());
71 // Now attach some user data to disk1
72 XBT_INFO("Get/set data for storage element: %s", storage->getCname());
73 XBT_INFO(" Uninitialized storage data: '%s'", static_cast<char*>(storage->getUserdata()));
75 storage->setUserdata(new std::string("Some user data"));
76 std::string* storage_data = static_cast<std::string*>(storage->getUserdata());
77 XBT_INFO(" Set and get data: '%s'", storage_data->c_str());
82 int main(int argc, char **argv)
84 simgrid::s4u::Engine e(&argc, argv);
85 sg_storage_file_system_init();
86 e.loadPlatform("../../platforms/storage/storage.xml");
87 simgrid::s4u::Actor::createActor("host", simgrid::s4u::Host::by_name("denise"), MyHost());