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 "./doc/simgrid/examples/platforms/g5k.xml"
23 #include "surf/surf_private.h"
25 int host(int argc, char *argv[]);
27 XBT_LOG_NEW_DEFAULT_CATEGORY(io_file,
28 "Messages specific for this io example");
30 int host(int argc, char *argv[])
32 msg_file_t file = NULL;
35 char* mount = bprintf("/home");
39 XBT_INFO("\tOpen file '%s'",FILENAME1);
40 file = MSG_file_open(mount,FILENAME1,"rw");
43 MSG_file_stat(file,&stat);
44 XBT_INFO("\tFile stat %s Size %.1f",file->name,stat.size);
45 MSG_file_free_stat(&stat);
48 XBT_INFO("\tUnlink file '%s'",file->name);
49 MSG_file_unlink(file);
51 // Re Open the file wich is in fact created
52 XBT_INFO("\tOpen file '%s'",FILENAME1);
53 file = MSG_file_open(mount,FILENAME1,"rw");
56 MSG_file_stat(file,&stat);
57 XBT_INFO("\tFile stat %s Size %.1f",file->name,stat.size);
58 MSG_file_free_stat(&stat);
60 // Write into the new file
61 write = MSG_file_write(ptr,100000,sizeof(char*),file); // Write for 100Ko
62 XBT_INFO("\tHave written %8.1f on %s",write,file->name);
65 MSG_file_stat(file,&stat);
66 XBT_INFO("\tFile stat %s Size %.1f",file->name,stat.size);
67 MSG_file_free_stat(&stat);
70 XBT_INFO("\tClose file '%s'",file->name);
75 surf_stat_t data = NULL;
76 xbt_dict_cursor_t cursor = NULL;
78 dict_ls = MSG_file_ls(mount,"./");
79 XBT_INFO(" ");XBT_INFO("ls ./");
80 xbt_dict_foreach(dict_ls,cursor,key,data){
81 if(data) XBT_INFO("FILE : %s",key);
82 else XBT_INFO("DIR : %s",key);
84 xbt_dict_free(&dict_ls);
86 dict_ls = MSG_file_ls(mount,"./doc/simgrid/examples/platforms/");
87 XBT_INFO(" ");XBT_INFO("ls ./doc/simgrid/examples/platforms/");
88 xbt_dict_foreach(dict_ls,cursor,key,data){
89 if(data) XBT_INFO("FILE : %s",key);
90 else XBT_INFO("DIR : %s",key);
92 xbt_dict_free(&dict_ls);
94 dict_ls = MSG_file_ls(mount,"./doc/simgrid/examples/msg/");
95 XBT_INFO(" ");XBT_INFO("ls ./doc/simgrid/examples/msg/");
96 xbt_dict_foreach(dict_ls,cursor,key,data){
97 if(data) XBT_INFO("FILE : %s",key);
98 else XBT_INFO("DIR : %s",key);
100 xbt_dict_free(&dict_ls);
107 int main(int argc, char **argv)
110 MSG_init(&argc, argv);
111 MSG_create_environment(argv[1]);
112 xbt_dynar_t hosts = MSG_hosts_as_dynar();
113 MSG_function_register("host", host);
114 unsigned long nb_hosts = xbt_dynar_length(hosts);
115 XBT_INFO("Number of host '%lu'",nb_hosts);
116 char* name_host = bprintf("0");
117 MSG_process_create( name_host, host, NULL, xbt_dynar_get_as(hosts,0,msg_host_t) );
120 xbt_dynar_free(&hosts);
123 XBT_INFO("Simulation time %g", MSG_get_clock());