1 /* Copyright (c) 2008, 2009, 2010. 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 * @subsection MSG_ex_resources Other resource kinds
11 * This section contains some sparse examples of how to use the other
12 * kind of resources, such as disk or GPU. These resources are quite
13 * experimental for now, but here we go anyway.
15 * - <b>io/file.c</b> Example with the disk resource
18 #define FILENAME1 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/g5k.xml"
19 #define FILENAME2 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/One_cluster_no_backbone.xml"
20 #define FILENAME3 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/g5k_cabinets.xml"
21 #define FILENAME4 "/home/user/Install/simgrid/doc/simgrid/examples/platforms/nancy.xml"
26 #include "surf/surf_private.h"
28 int host(int argc, char *argv[]);
30 XBT_LOG_NEW_DEFAULT_CATEGORY(io_file,
31 "Messages specific for this io example");
33 int host(int argc, char *argv[])
35 msg_file_t file = NULL;
38 char* mount = bprintf("C:");
40 if(!strcmp(MSG_process_get_name(MSG_process_self()),"0"))
41 file = MSG_file_open(mount,FILENAME1,"rw");
42 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1"))
43 file = MSG_file_open(mount,FILENAME2,"rw");
44 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2"))
45 file = MSG_file_open(mount,FILENAME3,"rw");
46 else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3"))
47 file = MSG_file_open(mount,FILENAME4,"rw");
48 else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
50 XBT_INFO("\tOpen file '%s'",file->name);
52 read = MSG_file_read(mount,NULL,10000000,sizeof(char*),file); // Read for 10Mo
53 XBT_INFO("\tHaving read %zu \ton %s",read,file->name);
55 write = MSG_file_write(mount,NULL,100000,sizeof(char*),file); // Write for 100Ko
56 XBT_INFO("\tHaving write %zu \ton %s",write,file->name);
58 read = MSG_file_read(mount,NULL,10000000,sizeof(char*),file); // Read for 10Mo
59 XBT_INFO("\tHaving read %zu \ton %s",read,file->name);
61 MSG_file_stat(mount,file,&stat);
62 XBT_INFO("\tFile %s Size %d",file->name,(int)stat.size);
64 XBT_INFO("\tClose file '%s'",file->name);
65 MSG_file_close(mount,file);
71 int main(int argc, char **argv)
74 MSG_global_init(&argc, argv);
75 MSG_create_environment(argv[1]);
76 xbt_dynar_t hosts = MSG_hosts_as_dynar();
77 MSG_function_register("host", host);
79 XBT_INFO("Number of host '%lu'",xbt_dynar_length(hosts));
80 for(i = 0 ; i<xbt_dynar_length(hosts); i++)
82 char* name_host = bprintf("%d",i);
83 MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,i,m_host_t) );
86 xbt_dynar_free(&hosts);
89 XBT_INFO("Simulation time %g", MSG_get_clock());