-/* Copyright (c) 2006-2014. The SimGrid Team.
+/* Copyright (c) 2006-2015. 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. */
+/** @addtogroup MSG_examples
+ *
+ * - <b>io/storage.c</b> demo of all main storage and file functions
+ */
+
/********************* Files and Storage handling ****************************
* This example implements all main storage and file functions of the MSG API
*
*
******************************************************************************/
-#include "msg/msg.h"
-#include "xbt/log.h"
-#include "xbt/dict.h"
+#include "simgrid/msg.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(storage,"Messages specific for this simulation");
}
xbt_dict_free(&storage_list);
-
// Create a 200,000 bytes file named './tmp/data.txt' on /sd1
char* file_name = xbt_strdup("/home/tmp/data.txt");
msg_file_t file = NULL;
XBT_INFO("Free size: %llu bytes", MSG_storage_get_free_size(storage));
XBT_INFO("Used size: %llu bytes", MSG_storage_get_used_size(storage));
-
// Now retrieve the size of created file and read it completely
file_size = MSG_file_get_size(file);
MSG_file_seek(file, 0, SEEK_SET);
XBT_INFO("*** Move '/tmp/data.txt' into '/tmp/simgrid.readme'");
MSG_file_move(file, "/home/tmp/simgrid.readme");
+ // Attach some user data to the file
+ MSG_file_set_data(file, xbt_strdup("777"));
+ // Retrieve these data
+ char *data = MSG_file_get_data(file);
+ XBT_INFO("User data attached to the file: %s", data);
+
MSG_file_close(file);
free(file_name);
// Now attach some user data to disk1
XBT_INFO("*** Get/set data for storage element: %s ***",storage_name);
- char *data = MSG_storage_get_data(storage);
+ data = MSG_storage_get_data(storage);
- XBT_INFO("Get data: '%s'", data);
+ XBT_INFO("Get storage data: '%s'", data);
MSG_storage_set_data(storage, xbt_strdup("Some user data"));
data = MSG_storage_get_data(storage);
xbt_free(data);
xbt_free(storage_name);
-
// Dump disks contents
XBT_INFO("*** Dump content of %s ***",MSG_host_get_name(MSG_host_self()));
xbt_dict_t contents = NULL;
return 1;
}
-
int main(int argc, char *argv[])
{
-
MSG_init(&argc, argv);
MSG_create_environment(argv[1]);
MSG_function_register("host", host);
msg_error_t res = MSG_main();
XBT_INFO("Simulated time: %g", MSG_get_clock());
- if (res == MSG_OK)
- return 0;
- else
- return 1;
+ return res != MSG_OK;
}