1 /* Copyright (c) 2014-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 /** @addtogroup MSG_examples
9 * - <b>io/remote.c</b> Example of delegated I/O operations
12 #include "simgrid/msg.h"
14 #define INMEGA (1024*1024)
16 XBT_LOG_NEW_DEFAULT_CATEGORY(remote_io, "Messages specific for this io example");
18 static int host(int argc, char *argv[]){
19 msg_file_t file = MSG_file_open(argv[1], NULL);
20 const char *filename = MSG_file_get_name(file);
21 XBT_INFO("Opened file '%s'",filename);
24 XBT_INFO("Try to read %llu from '%s'",MSG_file_get_size(file),filename);
25 sg_size_t read = MSG_file_read(file, MSG_file_get_size(file));
26 XBT_INFO("Have read %llu from '%s'. Offset is now at: %llu",read,filename, MSG_file_tell(file));
27 XBT_INFO("Seek back to the begining of the stream...");
28 MSG_file_seek(file, 0, SEEK_SET);
29 XBT_INFO("Offset is now at: %llu", MSG_file_tell(file));
34 file = MSG_file_open(argv[2], NULL);
35 filename = MSG_file_get_name(file);
36 XBT_INFO("Opened file '%s'",filename);
37 XBT_INFO("Try to write %llu MiB to '%s'", MSG_file_get_size(file)/1024, filename);
38 sg_size_t write = MSG_file_write(file, MSG_file_get_size(file)*1024);
39 XBT_INFO("Have written %llu bytes to '%s'.",write,filename);
43 dest = MSG_host_by_name(argv[3]);
44 if (xbt_str_parse_int(argv[5], "Argument 5 (move or copy) must be an int, not '%s'")) {
45 XBT_INFO("Move '%s' (of size %llu) from '%s' to '%s'", filename,MSG_file_get_size(file), MSG_host_get_name(src),
47 MSG_file_rmove(file, dest, argv[4]);
49 XBT_INFO("Copy '%s' (of size %llu) from '%s' to '%s'", filename, MSG_file_get_size(file), MSG_host_get_name(src),
51 MSG_file_rcopy(file, dest, argv[4]);
59 int main(int argc, char **argv)
64 MSG_init(&argc, argv);
65 MSG_create_environment(argv[1]);
66 MSG_function_register("host", host);
67 MSG_launch_application(argv[2]);
69 xbt_dynar_t storages = MSG_storages_as_dynar();
70 xbt_dynar_foreach(storages, cur, st){
71 XBT_INFO("Init: %llu MiB used on '%s'", MSG_storage_get_used_size(st)/INMEGA, MSG_storage_get_name(st));
76 xbt_dynar_foreach(storages, cur, st){
77 XBT_INFO("Init: %llu MiB used on '%s'", MSG_storage_get_used_size(st)/INMEGA, MSG_storage_get_name(st));
79 xbt_dynar_free_container(&storages);
81 XBT_INFO("Simulation time %g", MSG_get_clock());